AUTOMOTIVE LEARNING · BUILT TO INTERACT

Understand the system.
Think like a technician.

Autonatomy connects clear automotive instruction with virtual hands-on practice, diagnostic reasoning, evidence capture, and practical verification in one learning system.

Start / Resume Learning →Explore the Course Player
18Main courses
136Subcourses
3Learning depths
1Learning engine
Virtual hands-on previewTechnician
Electrical · Diagnostic reasoning

Trace the complaint to evidence

Observe the circuit, change the condition, compare measurements, then commit to the fault branch your evidence supports.

+ −
BAT⏻
SW✹
LOAD
Evidence pathObserve → Test → Decide
Open Electrical diagnosis →
THE AUTONATOMY COURSE UNIVERSE

Automotive learning from foundations to professional practice.

Every registered subcourse is connected to the Course Player. Course colors help you orient yourself without turning each subject into a different website.

Browse catalog →
COURSE 01Automotive Foundations & Vehicle LiteracyCOURSE 02Electrical & Electronics FundamentalsCOURSE 03Advanced Automotive Electrical SystemsCOURSE 04Vehicle Networks, Modules & SoftwareCOURSE 05ADAS & Active SafetyCOURSE 06Engine Mechanical SystemsCOURSE 07Engine Performance & EmissionsCOURSE 08Integrated Vehicle DiagnosticsCOURSE 09HVAC & Thermal ManagementCOURSE 10Manual Drivetrain, Axles & AWDCOURSE 11Automatic Transmissions & TransaxlesCOURSE 12Chassis: Steering, Suspension, Wheels & TiresCOURSE 13Brake SystemsCOURSE 14Alternative Fuels & Emerging PowertrainsCOURSE 15Diesel Engine Systems & PerformanceCOURSE 16Hybrid & Electric Vehicle SystemsCOURSE 17Body, Structure & Collision FundamentalsCOURSE 18Service Operations, Careers & Automotive Business
ENTER-N-ACTION

Hands-on thinking can happen before the vehicle.

Autonatomy uses interactive teaching environments to make invisible system behavior visible. Students manipulate conditions, collect evidence, make diagnostic decisions, and verify what changed.

Open Lab Center →
01
Observe the complaintStart with what the driver, system, or data is actually doing.
02
Manipulate the systemOperate switches, loads, controls, faults, conditions, or simulated inputs.
03
Capture evidenceRead voltage, pressure, scan data, state changes, flow, or other proof.
04
Commit to a diagnosisChoose the branch the evidence supports—not the part that looks suspicious.
05
Verify the resultRepeat the condition and prove the system now behaves as expected.
ENTER-N-ACTION · LIVE EVIDENCEACTIVE
Source12.6V
Load drop1.8V
Ground0.1V
ONE COURSE · THREE DEPTHS

Meet the learner where they are. Keep the system connected.

Depth changes the explanation, evidence priorities, and diagnostic expectations while the learner stays inside the same course architecture.

FOUNDATION

See the system

Identify parts, purpose, basic flow, vocabulary, and the first cause-and-effect relationships.

TECHNICIAN

Test the system

Connect the complaint to measurements, service information, test strategy, and repair verification.

DEEP

Defend the reasoning

Explain interactions, edge cases, control strategy, competing hypotheses, and why the evidence rules them in or out.

MY LEARNING

Your work should leave evidence.

Autonatomy keeps browser-local learning records for modern modules, including lesson progress, diagnostic cases, checks, confidence, and practical verification status where supported. Historical records remain preserved separately instead of being falsely merged.

Resume learning→Review learning evidence→Set learning depth→
FOR THE INSTRUCTOR

Teach the system. Observe the thinking.

Instructor tools, practical rubrics, teaching ideas, recovered resources, and course-development utilities remain available without crowding the student’s primary path.

Open Instructor Center →
v229 authoritative curriculum status: 18 main courses · 136 registered subcourses · 136/136 mapped. Older course-map and integration-audit sections are preserved historical snapshots and may show superseded counts or labels; use the Course Player and current Directory as the authoritative learning map.
v251 Electrical curriculum modernization complete: Courses 02 and 03 now contain modern Learning Engine modules across all 14 Electrical subcourses (02.1–02.7 and 03.1–03.7), while prior lessons, labs and workbenches remain preserved as supporting resources. Current strict portfolio: 56 Modern · 15 Mixed · 65 Legacy Mapped. Open the phase report →
v247 historical modernization delta: using the strict v229 rules, 02.7 now contains a modern flagship plus its preserved legacy capstone, moving that record from Legacy Mapped to Mixed. Current portfolio: 52 Modern · 6 Mixed · 78 Legacy Mapped. The original v229 audit remains preserved. Open the Electrical Flagship delta →
New development: ADAS Functions & System Interactions 05.3. Open the original seven-part functions course → · 05.2 Sensors · 05.1 Fundamentals · Autonatomy Course Player. Browse all 18 courses and 136 subcourses in one learner shell, with existing content launched only where it is already mapped. Open Course Player →
Explore the complete mini-course map

Find original multi-section mini-courses inside their parent subcourses, or follow existing unit sequences and diagnostic lab collections. Browse mini-courses and sequences →

New: Integrated standalone activities (86 imported sitewide)

Electrical Fundamentals · Advanced Electrical · Lighting Systems · Automotive HVAC · Fundamentals · Browse all →

AUTONATOMY · COURSE CATALOG

Choose the system. Follow the evidence.

Explore the full automotive curriculum, then enter any course through the unified Course Player. Modern modules, preserved historical work, labs, and supporting resources stay connected to their registered subcourse.

Home/Course Catalog
18 CONNECTED COURSE FAMILIES

Choose how you want to learn

Start with a complete automotive system, open a focused subcourse, or search for a specific skill. The Course Player is the authoritative learner-facing map.

View integrated course map & available lessons →

ALL MAIN COURSES

The complete curriculum

Jump directly into any main course. The color rail is orientation only; every course remains part of one Autonatomy experience.

COURSE 01Automotive Foundations & Vehicle LiteracyCOURSE 02Electrical & Electronics FundamentalsCOURSE 03Advanced Automotive Electrical SystemsCOURSE 04Vehicle Networks, Modules & SoftwareCOURSE 05ADAS & Active SafetyCOURSE 06Engine Mechanical SystemsCOURSE 07Engine Performance & EmissionsCOURSE 08Integrated Vehicle DiagnosticsCOURSE 09HVAC & Thermal ManagementCOURSE 10Manual Drivetrain, Axles & AWDCOURSE 11Automatic Transmissions & TransaxlesCOURSE 12Chassis: Steering, Suspension, Wheels & TiresCOURSE 13Brake SystemsCOURSE 14Alternative Fuels & Emerging PowertrainsCOURSE 15Diesel Engine Systems & PerformanceCOURSE 16Hybrid & Electric Vehicle SystemsCOURSE 17Body, Structure & Collision FundamentalsCOURSE 18Service Operations, Careers & Automotive Business

Main courses

Big picture → complete automotive system
Main course
Main coursePreview available

Automotive Electrical Systems

Understand electrical principles, circuit operation, components, testing, and diagnosis.

Path: Electrical Systems → Electrical Fundamentals
Open in Course Player →
Main course
Main coursePreview available

Advanced Electrical

Explore advanced vehicle electrical systems, starting with exterior lighting and turn-signal diagnosis.

Path: Advanced Electrical → Lighting Systems
Open in Course Player →
Main course
Main courseSample available

Engine Systems

Study engine construction, operation, lubrication, cooling, and mechanical condition.

Path: Engine Systems → Engine Fundamentals
Open in Course Player →
Main course
Main courseSample available

Braking Systems

Explore hydraulic brakes, friction, ABS, inspections, and fault diagnosis.

Path: Braking Systems → Brake Fundamentals
Open in Course Player →
Main course
Main courseSample available

Automatic Transmissions & Transaxles

Follow torque conversion, planetary gears, hydraulics, controls, and power flow.

Path: Transmission Systems → Automatic Transmission Fundamentals
Open in Course Player →
Main course
Main courseSample available

Engine Performance

Investigate air, fuel, ignition, emissions, sensors, and engine diagnostics.

Path: Engine Performance → Sensors & Controls
Open in Course Player →
Main course
Main courseSample available

Steering & Suspension

Examine steering geometry, suspension components, alignment, and handling.

Path: Chassis Systems → Steering & Suspension
Open in Course Player →
Main course
Main courseSample available

Heating & Air Conditioning

Learn HVAC fundamentals, refrigerant circuits, cabin air, and climate control.

Path: HVAC → Climate Control Fundamentals
Open in Course Player →
Main course
Main courseSample available

Drivetrain & Axles

Explore driveline components, differentials, bearings, joints, and operation.

Path: Drivetrain → Driveline Fundamentals
Open in Course Player →
Main course
Main courseSample available

ADAS & Vehicle Networks

Connect driver-assistance systems with sensors, network communication, diagnostics, and calibration principles.

Path: ADAS → System Fundamentals
Open in Course Player →

Subcourses

Focused subjects within main courses
Subcourse
SubcoursePreview available

Electrical Fundamentals

Start with electrical theory, current, voltage, resistance, and complete circuits.

Path: Electrical Systems → Electrical Fundamentals
Open in Course Player →
Subcourse
SubcourseInteractive preview

Lighting Systems

Operate and diagnose turn signals and hazards in an interactive virtual circuit.

Path: Advanced Electrical → Lighting Systems
Open in Course Player →
Subcourse
SubcourseSample available

Circuit Fundamentals

Understand series, parallel, and series-parallel circuit behavior.

Path: Electrical Systems → Circuit Fundamentals
Open in Course Player →
Subcourse
SubcourseSample available

Electrical Testing & Diagnosis

Learn meter use, voltage drop, testing strategy, and fault isolation.

Path: Electrical Systems → Electrical Testing & Diagnosis
Open in Course Player →
Subcourse
SubcourseSample available

Engine Fundamentals

Explore engine parts, four-stroke operation, and mechanical principles.

Path: Engine Systems → Engine Fundamentals
Open in Course Player →
Subcourse
SubcoursePlanned

Hydraulic Brake Fundamentals

Study pedal force, pressure, fluid flow, and brake components.

Path: Braking Systems → Hydraulic Brake Fundamentals
Page and lessons in development
Subcourse
SubcourseSample available

Automatic Transmission Fundamentals

Learn torque converters, gearsets, holding devices, and power flow.

Path: Transmission Systems → Automatic Transmission Fundamentals
Open in Course Player →

Mini courses

Focused standalone skills · planned
Mini course
Mini coursePlanned

Ohm’s Law

Practice voltage, current, resistance, and basic circuit calculations.

Path: Mini course → Electrical principles
Page and lessons in development
Mini course
Mini coursePlanned

Reading Wiring Diagrams

Learn common circuit symbols, connector details, and how to trace a circuit.

Path: Mini course → Electrical diagnostics
Page and lessons in development
Mini course
Mini coursePlanned

Multimeter Essentials

Explore meter setup, measurement modes, and safe testing habits.

Path: Mini course → Electrical testing
Page and lessons in development
Mini course
Mini coursePlanned

ADAS Calibration Basics

Understand why calibrations are needed and the distinction between static and dynamic procedures.

Path: Mini course → ADAS fundamentals
Page and lessons in development

How a learning path connects

Every course will follow a consistent hierarchy. Mini courses can stand alone and also appear as relevant recommendations inside a larger course.

Main course→ Subcourse→ Unit→ Lesson→ Topic & activity→ Knowledge check

See the Electrical Systems sample →

COURSE CREATION

Build your own course

Create course drafts, design knowledge checks, and export a standalone clickable site.

Open Course Studio →
YOUR OWN COURSES · LOCAL PREVIEW

Published from Course Studio

Your saved courses appear here after you select Publish to catalog in Course Studio. Your built-in Electrical Fundamentals course stays above. Published content here is saved only in this browser; use Export published page to move it elsewhere.

ADDITIONAL COURSE ENTRY POINTS

Continue into HVAC and Engine Performance

These course landing pages connect to two verified existing interactive activities. They do not represent completed courses.

COURSE ENTRY POINT

Heating, Ventilation & Air Conditioning (HVAC)

Open the HVAC electrical-control lesson and its circuit simulation.

Explore HVAC →
YOUR PUBLISHED LEARNING PATHWAY

Explore your course

Navigate your courses, subcourses, units, lessons and knowledge checks.

Student-facing local preview · These courses are published in this browser only; no online enrollment, accounts, or synced grades.

Explore all integrated activities for this system View guided lessons, original simulations & earlier notes →
New: Integrated standalone activities (86 imported sitewide)

Electrical Fundamentals · Passive & Electromechanical Components · Wiring, Harnesses & Connectors · Browse all →

Main course · Working preview

Automotive Electrical Systems

Follow the energy. Understand how circuits work, how components respond, and how technicians approach electrical problems—one clear learning step at a time.

Explore Electrical Fundamentals →View subcourses ↓

This is a development preview. It is not an enrollment page, and only the Electrical Fundamentals sample pathway is currently linked.

Sample conceptCircuits 101
A circuit is a complete path.

What changes when the switch opens?

+ −
BATSWLAMP
Understand → Apply → ExplainConcept preview
Electrical Fundamentals · Guided practiceUnderstanding Electricity →Electric Charge and Current →What Makes a Circuit Complete? Guided Practice →Electrical Effects →
Home/Course Catalog/Automotive Electrical Systems
THE BIG PICTURE

Learn the system before chasing the fault.

Electrical systems touch nearly every modern vehicle function. This main course brings related subjects together in one organized home. The subcourses below focus on individual skills, while units and lessons provide the actual learning experience.

What this main course covers

Electrical theory, circuit behavior, common components, measurements, and diagnostic reasoning. Start with fundamentals or jump to a focused subject as the course library grows.

LEARNING GOALS

What you'll work toward

These are draft course-level goals that we'll refine as we build the individual subcourses.

  • Explain voltage, current, resistance, and the conditions required for current to flow.
  • Recognize major circuit types and predict how a circuit responds to a change.
  • Identify basic electrical components and describe their purpose.
  • Interpret simple wiring diagrams and choose an appropriate test approach.
  • Use observations and measurements to reason through an electrical fault.
CHOOSE A FOCUSED PATH

Explore the subcourses

A main course is the subject hub. Select a subcourse to reach its units, lessons, activities, and knowledge checks. Planned subcourses are visible here so we can develop them without losing the overall map.

SUBCOURSE 01Sample available

Electrical Fundamentals

Start with electrical theory, current flow, voltage, resistance, conductors, and what makes a circuit complete.

Open subcourse →
SUBCOURSE 02Planned

Circuit Fundamentals

Explore series, parallel, and series-parallel circuits and the relationships between current, voltage, and resistance.

Page and lessons not built yet
SUBCOURSE 03Planned

Electrical Components

Investigate switches, relays, resistors, diodes, capacitors, sensors, and how they behave in a circuit.

Page and lessons not built yet
SUBCOURSE 04Planned

Electrical Testing & Diagnosis

Learn safe measurement habits, voltage drop, circuit testing, and how to isolate common electrical faults.

Page and lessons not built yet
HOW EVERYTHING CONNECTS

From big idea to hands-on challenge

We keep the hierarchy consistent so every new subject can fit into the same structure.

  1. Level 1Main courseThe complete automotive system.
  2. Level 2SubcourseA focused part of the system.
  3. Level 3Unit → LessonOrganized explanations and examples.
  4. Level 4Activity → CheckApply a concept and test understanding.

Ready to enter the first sample pathway?

Open Electrical Fundamentals, view its unit, and try the introductory lesson. This is a working preview, not a completed or graded course.

Go to Electrical Fundamentals →
Automotive Electrical Systems / Subcourse 01

Electrical Fundamentals

Understand the ideas behind every electrical diagnosis. Explore the difference between voltage and current, the role of resistance, and what makes an electrical circuit work.

Explore Unit 1 →View unit roadmap ↓

Development preview · One sample unit with four lessons available · No enrollment or saved grades yet

Your learning route

Start simple. Build understanding.

Each part answers a smaller question, building toward practical circuit reasoning.

Idea→Example→Practice→Check
Current sample: Electrical Theories & Principles · Unit 1
Electrical Fundamentals · Guided practiceUnderstanding Electricity →Electric Charge and Current →What Makes a Circuit Complete? Guided Practice →Electrical Effects →
Home/Course Catalog/Electrical Systems/Electrical Fundamentals
SUBCOURSE OVERVIEW

Electrical ideas you can explain—not just memorize.

This subcourse is the starting point within Automotive Electrical Systems. It introduces essential electrical concepts before more advanced circuit analysis, components, and testing.

What belongs here?

Electrical charge and current, voltage, resistance, complete circuits, sources and loads, conductors and insulators, and the effects of electricity. As we develop the units, each lesson will connect these ideas to straightforward automotive examples.

YOUR LEARNING GOALS

What you'll learn to do

Draft outcomes for this subcourse. We will refine them as the units and assessments are developed.

  • Describe electric charge and what electrical current means.
  • Distinguish voltage, current, and resistance using clear examples.
  • Explain why a source and a complete conductive path are necessary in a simple circuit.
  • Identify examples of conductors, insulators, sources, and loads.
  • Describe common effects of current, such as heat, light, and magnetism.
  • Predict what happens when a switch interrupts a simple circuit.
UNIT ROADMAP

Choose where to begin

Units organize related lessons. Only the first unit is connected in this prototype; future units are included here to show the intended structure.

01
Sample available

Electrical Theories & Principles

What electricity is, the conditions for current flow, and foundational circuit ideas. Contains one connected introductory lesson.

Open unit →
02
Planned

Electrical Quantities & Terminology

Voltage, current, resistance, power, and the language of electrical measurement.

Not built yet
03
Planned

Conductors, Insulators & Circuit Paths

How materials and connections affect electrical pathways in automotive examples.

Not built yet
04
Planned

Electrical Effects & Everyday Applications

Light, heat, magnetism, and other ways electrical energy is used in a vehicle.

Not built yet
A LOOK INSIDE

Try the first lesson

The first lesson demonstrates the learning-page template and a short interactive check.

UNIT 01 · LESSON 01

Understanding Electricity

Explore electrical current in a simple battery-and-lamp circuit. Then answer a question about what allows current to flow.

Open sample lesson →
01 · UnderstandRead the core idea in plain language.
02 · ConnectApply the idea to a familiar circuit.
03 · ChallengeTry the interactive knowledge check.

Looking for the bigger picture?

Return to Automotive Electrical Systems to see how this subcourse connects to the complete learning pathway.

← Main course overview
Automotive Electrical Systems / Electrical Fundamentals / Unit 01

Electrical Theories & Principles

Start with the ideas that make electrical systems understandable: electric charge, the conditions for current flow, and how a basic circuit works.

Start Lesson 1 →Guided Study Path →View lesson roadmap ↓
Electrical Fundamentals · Guided practiceUnderstanding Electricity →Electric Charge and Current →What Makes a Circuit Complete? Guided Practice →Electrical Effects →
Home/Catalog/Electrical Systems/Electrical Fundamentals/Unit 1
UNIT OVERVIEW

What this unit is about

Every electrical diagnosis begins with understanding what is moving, why it moves, and what must be present for it to move. We begin with simple examples, then connect those ideas to automotive circuits.

One simple question starts it all

What makes an electrical circuit work? A voltage difference can drive current through a complete conductive path. By the end of this unit, students should be able to explain that idea in their own words and recognize it in familiar examples such as a battery, switch, wires, and lamp.

LEARNING OBJECTIVES

What you should be able to explain

These are draft unit-level learning goals; we'll refine them alongside the finished lessons.

  • Describe electric charge and electrical current in simple language.
  • Explain why a voltage difference and complete path are needed for sustained current.
  • Recognize the roles of a source, conductors, switch, and load in a basic circuit.
  • Explain what changes when a switch opens or closes the circuit.
LESSON ROADMAP

Your path through Unit 1

Choose any of the four available interactive lessons and work through the sequence.

01
Sample lesson available

Understanding Electricity

Explore the conditions for current flow through a simple circuit, then try an interactive knowledge check.

Open lesson →
02
Interactive lesson available

Electric Charge and Current

Use an adjustable charge-flow model to distinguish coulombs from amperes.

Open lesson →
03
Interactive lesson available

What Makes a Circuit Complete?

Compare a healthy loop, open switch, and high-resistance return path.

Open lesson →
04
Interactive lesson available

Electrical Effects

Compare light, heat and magnetic effects with a simplified adjustable DC circuit model.

Open lesson →
THE LEARNING EXPERIENCE

How we'll work through a lesson

Our reusable lesson design will move from an understandable explanation to an example students can interact with.

01 · UnderstandStart with an idea explained in plain language.
02 · ExploreConnect the concept to a circuit, diagram, or simulation.
03 · ChallengeCheck understanding and get immediate feedback.
UNIT CHECK

Unit assessment

Sample knowledge check available

Try the six-question Electrical Fundamentals concept check and review each answer. It is a sample formative assessment, not a complete final Unit 1 test.

Open sample Assessment Center →

The sample check is formative and does not verify physical skills.

Back to Electrical Fundamentals

See how Unit 1 connects to the remaining units in this subcourse.

← Subcourse overview
PRACTICE · NOW AVAILABLE

Interactive Electrical Lab

Three short exercises: change voltage and resistance, choose a diagnostic next step, and take a Challenger knowledge check.

Open Interactive Lab →
Continue with Understand0 / 4 sample learning activities · Review the sample electricity lesson.
Continue → · Study Hub
Open guided practice & knowledge check →
ELECTRICAL FUNDAMENTALS · UNIT 01 · LESSON 01

Understanding Electricity

Electricity makes more sense when you can explain what a complete circuit needs—and see what changes when the circuit opens.

Concept lessonInteractive circuitKnowledge checkDevelopment preview · No saved progress
Home/Electrical Systems/Electrical Fundamentals/Unit 1/Lesson 1
YOUR LEARNING LENS · OPTIONAL

Make this practice yours

Choose a starting point. You can switch levels whenever you need a simpler explanation or a greater challenge.

Full learning profile →

Preferences are saved locally in this browser when available.

Text + practical example · Automotive

Foundation learning lens

Your chosen learning level.

Current is the rate of charge flow. A voltage difference and a complete conductive path let current pass through a load.

Example from your chosen field

Picture a battery, headlamp, and ground strap.

The Challenger · practice prompt

Point to the source, load, switch and return path.

This is a thinking prompt, not a scored physical skills assessment.

Edit learning profile →
SAME PRINCIPLE · DIFFERENT EXPLANATIONS

Electricity in your world

Electrical current requires a closed conductive path.

Automotive example

A headlamp goes out when its only circuit path opens.

THE CHALLENGER · PRACTICE, NOT A GRADE

What happens when the switch opens?

Practice level changes this question, not your access to lessons. A correct browser answer does not verify hands-on skill.

Before you begin

Here's what you'll learn

By the end of this short lesson, you should be able to:

  • Explain current as the rate of flow of electric charge.
  • Identify the voltage source, complete path, switch, and load in a simple circuit.
  • Predict what happens to the lamp when the switch opens or closes.
01 · Understand

What makes current flow?

Electric current is the rate at which electric charge passes a point. A voltage difference provides the driving condition for current through a conductive path.

In our simple battery-and-lamp circuit, a sustained current needs a source of voltage and a complete path through the lamp and back to the source. The lamp converts electrical energy into light and heat.

Think of it this way: Closing the switch completes the loop. Opening the switch interrupts the only path, so the lamp goes out.

Find the four parts

Source: Battery. Conductors: Wires. Control: Switch. Load: Lamp.

02 · Explore

Try it: complete the circuit

Operate the switch. Observe the lamp, the current-path indicator, and the explanation below. This is a conceptual illustration, not a real electrical test.

+BATTERYSWITCHLAMPSimplified battery • switch • lamp loop
Switch open · Lamp OFF

The circuit is open. The only conductive path is interrupted, so the lamp is off.

Animated blue segments illustrate current through the complete path when the switch is closed. They do not show individual electrons or the actual speed of charge carriers.

03 · The Challenger

Can you predict the outcome?

Challenge: You have a good battery and lamp, but the switch in their only circuit path is open. What happens?

This is an ungraded practice check. Your selection is not stored, and completing it does not award a certificate.

04 · Connect it to the workshop

From knowing to doing

Conceptual knowledge: You can explain why opening a switch stops current through a lamp in this simple one-path circuit.

Practical skill is different: On a properly prepared low-voltage training board, a student would identify components and verify operation using approved lab instructions and supervision. This webpage alone cannot verify hands-on competence.

Quick recap

A voltage difference can drive current through a complete conductive path. The switch controls whether that path is complete; the lamp is the load.

Personal review checkmark · optional

Have you reviewed this lesson?

Mark this page after you have worked through it. This records only your self-reported review on this device; it is not a grade, verified assessment, or proof of hands-on skill.

View My Learning dashboard →

Take the sample electrical knowledge check →

← Back to Unit 1Subcourse overview →Explore the Interactive Lab →Next lesson →

Continue to Lesson 2: Electric Charge and Current →

ELECTRICAL FUNDAMENTALS · UNIT 01 · LESSON 03

What Makes a Circuit Complete?

Trace the path and compare three common conditions using an interactive circuit model.

Concept lessonInteractive workbenchKnowledge checkDevelopment preview · Practice is not graded
Open guided practice & knowledge check →
Home/Electrical Fundamentals/Unit 1/Lesson 3
Before you begin

What you will learn

  • Identify source, load, conductors, switch, and return path.
  • Explain why a circuit can have source voltage but no current when open.
  • Compare an ideal healthy loop with an open path and an unwanted high-resistance return connection.
01 · Understand

Every working load needs a complete path.

A basic lamp circuit starts at a source, passes through the switch and load, and returns to the source. The source provides a voltage difference; a closed conductive path allows current through the load.

An open circuit is a break in the only path. Current through that path stops even though the source may still show voltage. A high-resistance connection does not necessarily break the path: it can consume some of the available voltage while current is flowing.

Diagnostic question: Do you have a complete path that can carry current under load—not simply voltage at one test point?
02 · Explore

Compare three circuit conditions

This idealized 12 V DC model uses a fixed 6 Ω lamp-equivalent resistor, plus an optional 3 Ω unwanted return resistance. A real incandescent lamp changes resistance as its filament heats.

Circuit-condition workbench

Circuit current2 A
Voltage across load12 V
Return-path voltage drop0 V

Lamp at nominal model brightness

For the open-switch case, the readouts show steady-state current and drops across the load/return only; voltage across the open switch is not shown. The model is not a live diagnostic test.

03 · The Challenger

Read the circuit before replacing the lamp.

The modeled loop is complete, but it has 3 Ω of unwanted return resistance. What happens to the load voltage?

04 · Connect it to the workshop

Where the simulation ends

With the lamp commanded on and current flowing, a trained technician can compare voltage across the load with the voltage drop along the return path. A high return-path drop under load points toward unwanted resistance in that path; a feed reading alone does not prove the load has adequate voltage across it.

Practical skill is different: A browser model does not confirm component condition or authorize work on a live vehicle. Follow approved low-voltage training procedures and use the correct meter setup.
← Lesson 2Unit 1 roadmap →Lesson 4: Electrical Effects →

Next up: Explore electrical effects in Lesson 4.

ELECTRICAL FUNDAMENTALS · UNIT 01 · LESSON 02

Electric Charge and Current

Separate the amount of charge from its rate of flow, then explore how current and time affect total charge.

Concept lessonInteractive workbenchKnowledge checkDevelopment preview · Practice is not graded
Open guided practice & knowledge check →
Home/Electrical Fundamentals/Unit 1/Lesson 2
Before you begin

What you will learn

  • Distinguish electric charge from current.
  • Explain the difference between coulombs and amperes.
  • Use the relationship Q = I × t for a steady current.
01 · Understand

Charge is the amount; current is the rate.

Imagine counting how much water passes a point in a pipe. The amount of water is different from the rate at which it passes. Electrical charge and electrical current are different in the same way.

Charge (Q) is measured in coulombs (C). Current (I) is the rate at which charge passes a point, measured in amperes (A). One ampere means one coulomb passes a point each second.

Do not confuse these ideas: A current reading tells you how much charge passes per second; it does not tell you how fast an individual electron travels along a wire.

In a car

When you turn on a lamp, a complete circuit can sustain charge flow. A greater current means more charge passes a chosen point per second, not that the lamp is consuming electrons as fuel.

02 · Explore

Change current and time

Move the sliders to compare a rate (amperes) with the total amount of charge passing a point during an interval (coulombs). Assume a constant current during the selected interval.

Charge-flow workbench

Charge passing the point20 C
Charge per second2 C/s
RelationshipQ = I × t

The bar compares calculated charge against an 80 C reference. It is not a visualization of individual electrons or charge-carrier speed.

03 · The Challenger

Calculate before you click.

A steady current of 1.5 A flows for 4 seconds. How much charge passes a point?

04 · Connect it to the workshop

What could you actually measure?

A DC ammeter or current clamp (used correctly with a suitable circuit) measures current in amperes; it does not directly display the accumulated charge that has passed during an interval. You can calculate that charge from measured steady current and elapsed time.

Hands-on skills remain separate: This browser exercise cannot verify safe meter hookup or real circuit measurement. Avoid connecting a meter in current mode directly across a battery.
← Lesson 1Lesson 3: Complete Circuits →
Continue with Understand0 / 4 sample learning activities · Review the sample electricity lesson.
Continue → · Study Hub
ELECTRICAL FUNDAMENTALS · UNIT 01 · ACTIVITY LIBRARY

Interactive Electrical Lab

Explore a circuit model, practice diagnostic reasoning, and choose your Challenger level. Each activity works in your browser, on a phone or laptop.

3 interactive stationsRepeat as often as you likeConceptual practice onlyNo saved grades
Home/Electrical Systems/Electrical Fundamentals/Unit 1/Interactive Lab
Start here

Practice without pressure

These stations are reusable templates for future Autonatomy lessons: a parameter-based simulation, a diagnostic scenario, and a question bank with different challenge levels. They are learning activities—not measurements on a real car or proof of hands-on competence.

Electrical safety: Use the simulator only. Do not connect this webpage to a vehicle or a physical electrical circuit.

Station 01 · Interactive model

Ohm’s Law workbench

Change the source voltage and resistance. Watch how the calculated current and resistor power change in an ideal, simple DC circuit.

Current · I = V / R120 mA
Power · P = V × I1.44 W
Circuit stateEnergized

At 12 V through 100 Ω, the model calculates 120 mA of current and 1.44 W of resistor power.

Simplified model: an ideal voltage source and one resistor. Real automotive systems include component ratings, tolerances, wiring losses, and additional loads.

Station 02 · Diagnostic reasoning

Choose your next test

Scenario: A simple 12 V lamp does not illuminate. With the circuit commanded ON, the battery measures 12 V. Both lamp terminals measure 0 V relative to battery negative.

Which next step best helps you locate the fault?

The readings suggest the lamp is not receiving supply voltage, but they do not identify the exact failed component. A systematic follow-up test is needed.

Station 03 · The Challenger

Choose your challenge level

What happens to current when a switch opens the only path in a simple battery–lamp circuit?

This is an ungraded knowledge check. A correct answer here does not establish practical electrical competence.

Optional · Your practice

Mark your lab practice

If you worked through these activities, you can mark them as practiced on this device. This does not record your answers, grade a diagnostic skill, or verify hands-on competence.

View My Learning dashboard →
What's next

Connect the practice to the lesson

Return to the lesson to revisit current flow and the switch/lamp demonstration, or return to Unit 1 to see where this activity fits in the learning route.

← Understanding ElectricityUnit 1 overview →
MY LEARNING · OPTIONAL PERSONALIZATION

Make the lesson fit the learner.

Choose how ideas are explained, try a short conceptual knowledge check, and explore a practice level. You remain in control of your pathway.

My Learning/Learning Profile
01 · YOUR PREFERENCES

How do you want to learn?

Pick a presentation style and a familiar work setting. These change examples and the explanation in our sample lesson; they do not change the underlying electrical principles.

See changes in the lesson →

No preference is a label of intelligence. You can switch levels at any time.

02 · OPTIONAL CONCEPT CHECK

Find a comfortable starting point.

Answer five short electrical questions. Your result suggests a practice level; it does not measure hands-on skill, award credit, or lock any lesson.

03 · YOUR DATA

Keep your choices portable.

In this prototype, your preferences and concept-check answers are saved in this browser when permitted. They are not a student account and do not sync automatically to another device.

Keep exported files private if they include personal learning information. Use the JSON export before switching devices or browsers.

Move between learning modes

Continue from theory to experimentation and technician evidence using the shared Student Experience hub.

SIM · LEARN · ENTER-N-ACTION · Six-stage Electrical journey

ELECTRICAL PILOT · CONTINUE LEARNING

Your six-stage Electrical journey

Checking visits on this device…

Continue Electrical pilot → Explore SIM / LEARN / ENTER-N-ACTION →

Visits are not passing grades or verified hands-on competency. These visit records stay in this browser and do not synchronize between devices.

MY LEARNING · COMBINED OVERVIEW

Your Autonatomy learning overview

One place to find your guided-practice records and standalone activity log. They use different evidence; neither is a verified hands-on skills credential.

—Guided practices completed here (quiz + reflection)
—Standalone activities marked practiced by you
—Standalone activities saved for review
—Standalone activities without a practice mark

Earlier Electrical Unit 1 · separate local concept check

Read-only summary from the recovered original Unit 1 pathway, where available in this browser. These self-marked review steps and an eight-question, unproctored knowledge check do not count toward current course grades or verified practical competence.

Checking earlier browser-local records…

Open earlier Unit 1 pathway →

RECOVERED HISTORICAL COURSE RECORDS

Brakes & Suspension — original self-marked lesson completion

These counts read the original browser-local lesson-completion marks from the preserved historical course. They are not quiz scores, diagnostic proficiency, verified hands-on skills, or proof of completing all requirements in a subcourse.

Historical progress not yet loaded on this device.

For consistent progress across the original embedded lessons and the new dashboard, open all files through the same local web address. Private browsing, cleared browser storage, a different origin, or a different device may show different records.

Earlier HVAC · original self-marked lesson record

Read-only count from the five historical HVAC Fundamentals lessons. A self-marked review step is not an auto-scored quiz, diagnostic result, hands-on qualification, or course grade.

Checking earlier HVAC records on this device…

Open the earlier HVAC lesson pathway →

Only local records saved under the same website address and browser can appear here. This view does not change or transfer original results.

NEW · RECORDED QUIZ EVIDENCE

Auto-scored knowledge checks (Electrical, HVAC + Lighting)

These are scores from actual submissions inside 24 instrumented original lessons, not visits, self-reported practice, mini-course completion, or instructor-verified hands-on skill. The other 62 standalone activities are not yet connected to this result feed.

No recorded quiz attempts on this device.

Open mini-courses →

Best score and latest submitted score are tracked separately. Results are stored in this browser only; an attempt in a different browser is not automatically synced. Resetting an original standalone lesson does not clear this separate master record.

NEW · ACTUAL VIRTUAL DIAGNOSTIC EVIDENCE

Virtual diagnostic results · 7 supported labs

Results come from the original lab's accepted diagnosis after its required checks and explanation—not from merely opening a lab, selecting a fault, revealing a teaching answer, or self-reporting practice. This pilot supports three original labs. It does not verify physical shop competency or grant a course credential.

No completed diagnostic tickets recorded on this device. Complete the original lab challenges to record evidence.

Open mini-courses →

Tickets are recorded once per case per lab on this browser. This is a local practice record, not secured proctoring, automatic scoring of every simulator, or an identity-linked transcript. The original labs do not store the written reasoning in this dashboard.

Continue learning

Next suggested entries are based on the catalog sequence and your saved marks. They do not imply that any earlier lesson is mastered.

Guided practice

Standalone lab

Subject-by-subject activity

Guided completions and self-reported standalone practice are displayed separately. The same topic appearing in both lists is not counted as two completed courses.

Your guided-practice records

A guided item is marked complete only when this site's knowledge check was answered correctly and its reflection was saved. This does not verify that the original embedded simulation was performed.

Saved standalone review list

These are activities you personally flagged for another look. Review marks and notes remain in the existing standalone practice log.

Browse all learning activities →Open standalone library →
Device-only preview: these records are read from this browser's local storage. There are no student accounts, synced results, central grades, or independent competency verification. The earlier dashboard components below have separate demo-only indicators.
Earlier dashboard widgets · The original sample lesson, Assessment Center and Study Hub below are preserved for comparison. Their old placeholder lesson counts may not reflect the newer course catalog. Use the combined overview above for the current guided and standalone inventory.
ALL STANDALONE ACTIVITIES · PERSONAL LOG

Your interactive practice

See your self-reported practice across all imported standalone lessons and diagnostic labs. Counts do not represent course completion or a verified practical assessment.

0 / 86Marked practiced
0Saved for review
86Not marked

Explore by subject

Resume and review

Open all standalone activities →

Export a copy before clearing this browser or switching devices. Imports replace only the standalone practice log; other guided-lesson and profile data are not included.

Continue with Understand0 / 4 sample learning activities · Review the sample electricity lesson.
Continue → · Study Hub
MY LEARNING · LEGACY PROTOTYPE REFERENCE

Earlier dashboard prototype

This preserved section demonstrates the original sample learning journey. It is retained for design history and compatibility; use the combined overview above for current mapped-course and evidence records.

Historical prototypeSample electrical journeyNot the current catalog count
Home/My Learning
YOUR NEXT STEP

Choose how you want to study

Switch between Foundation, Applied and Challenge practice any time. Your preferred explanation and example setting follow you into the sample lesson and Study Hub.

Open your personalized Study Hub →
NEW · GUIDED STUDY PATH

A connected learning journey

Follow the sample electrical lesson into an experiment, a diagnostic question, an assessment and your own written reflection. Self-reported review flags stay on this device.

Open Study Hub → · Guided Study Path →
NEW · ASSESSMENT CENTER

Knowledge, practice & achievements

See your latest and highest scores on the sample concept check, then log a separate self-reported virtual practice exercise. Physical skills are not verified in this preview.

Not attemptedLatest concept check
Not attemptedHighest concept check

0 / 3 demo badges · Browser-only, non-credential achievements

Open Assessment Center →
NEW · LEARNING PROFILE

Choose your learning lens

Set an explanation style, pick examples from your field, and try an optional five-question concept check. Your choices will change the sample lesson’s example and Challenger prompt.

Foundation · Text + practical example · Automotive

Open Learning Profile →
Your learning snapshot

Electrical Fundamentals

Review status is based only on whether you manually marked the available sample lesson. The interactive lab is tracked separately. Planned lessons are not counted.

0 / 1Published lessons marked reviewed
0 / 1Labs marked practiced

0% of available sample lessons marked reviewed · Not a grade or measure of mastery.

Continue sample lesson →Open interactive lab
Your current pathway

Electrical Systems → Electrical Fundamentals

The links below point to real pages in this development build. Items that have not been developed yet are labeled planned.

Unit 1 · Electrical Theories & Principles

Unit overview and lesson roadmap

View Unit 1
Available
Lesson 1 · Understanding Electricity

Current, voltage source, a complete path, and a switch.

Open lesson →
Not marked
Interactive Electrical Lab

Ohm’s Law model, diagnostic reasoning, and The Challenger.

Open lab →
Not marked
Lesson 2 · Electric Charge and Current

Educational content not developed yet.

Planned
Units 2–4 · Electrical Fundamentals

These are roadmap entries, not available learning pages yet.

Planned
Prototype only

How this dashboard saves your marks

When you select “Mark lesson reviewed” or “Mark lab practiced,” this browser attempts to save only those two checkmarks on this device. It does not create a student account, upload your information, synchronize between your phone and laptop, record quiz answers, or award credentials.

Clearing this browser’s data also removes these marks. Browser or device changes will not carry them over. Secure student accounts and verified learning records belong to a later development phase.

Continue with Understand0 / 4 sample learning activities · Review the sample electricity lesson.
Continue → · Study Hub
MY LEARNING · ASSESSMENTS & ACHIEVEMENTS

Show what you understand.
Practice what you can do.

Try a six-question electrical concept check, log a virtual exercise, and see clearly what has—and has not—been demonstrated.

Home/My Learning/Assessment Center
Latest attemptNot attemptedYour most recent concept check
Highest attemptNot attemptedBest of 0 attempts
Competence recordNot verifiedPhysical skills require observation and instructor sign-off.
01 / conceptual understanding

Electrical fundamentals · knowledge check

Six questions test circuit operation, basic electrical relationships, and introductory diagnostic reasoning. You can retry; your latest and highest results are stored separately.

This is a formative sample covering the existing lesson and related basics—not a complete Unit 1 assessment, certification, or proof of hands-on ability.

02 / practical learning · separate record

Virtual practice reflection

Return to the sample interactive electrical lab. Change the circuit settings, observe how the simulated measurements change, and explain one cause-and-effect relationship.

Open the interactive electrical lab →Review Understanding Electricity →

Real-world skill: Identifying wiring, choosing a meter setting, making safe measurements and interpreting results on a real training board require separate hands-on demonstration and observation by a qualified instructor. No hands-on certification is issued here.

03 / personal milestones

Your demo achievements

These badges recognize sample activity inside your browser. They are not qualifications, graded course completion, or third-party credentials.

← Back to My LearningLearning Profile →
V82 · HISTORICAL SOURCE ACCOUNTING

Recovered instructor-source register

Older instructor guides are now explicitly accounted for in the master audit without exposing protected assessment or evaluator material in this student-accessible static ZIP.

Electrical 1MAT Electrical 1 · Instructor GuideRecovered historical teaching source with demonstrations, labs, pacing and competency checks. Registered in the source audit; protected contents remain outside the public bundle.
Automatic Transmission14-Day Instructor Guide + Days 7–14 sourceRecovered later instructor-guide sources with performance stations, written-assessment planning and mastery criteria. Accounted for, not student-distributed.
Revision familyEarlier Automatic Transmission instructor PDFsNumbered historical revisions are treated as one revision family. Their unique public-facing student tasks are already represented by recovered worksheets and activities where verified.

Download v82 historical source audit (JSON) · Download v82 assessment reconciliation (JSON)

RECOVERED · PREVIOUSLY AUTHORED MATERIAL

Electrical assessment practice archive

Two student-facing resources from earlier classroom development are now preserved in the master site. They remain separate from the current online grade record; downloading or completing them does not create a verified score.

Practical assessmentElectrical 1 Hands-On MidtermEight-station student packet covering meter setup, circuit identification, fault diagnosis and measured-value calculations.Download student packet →
Review workbookAutomotive Electrical Midterm ReviewFoundations, circuits, multimeter use, diagnostics and electrical-law practice.Download review workbook →
Instructor securityKeys remain outside the public collectionRecovered instructor assessment guides and instructor-copy exams were inventoried but are not bundled into the student-facing static website.
ABOUT AUTONATOMY · OUR VISION

Don't just memorize it. Make it make sense.

Autonatomy is an automotive learning platform in development, designed to turn complex systems into clear explanations, meaningful practice, and challenges that reveal real understanding.

Explore the course framework →

Development preview · Course offerings and student services are not yet live.

Curiosity leads.
Understanding follows.
Practice proves it. A learning experience built for the way people actually learn.
WHY WE'RE BUILDING THIS

Our mission

Help learners understand automotive technology, connect the theory to what happens on a vehicle, and recognize the difference between knowing an answer and being able to do the work.

Start where you are

Explain ideas in accessible language, then offer deeper levels when you're ready for more.

Make it interactive

Use diagrams, guided questions, virtual practice, and diagnostic scenarios—not just pages of text.

Prove what you know

Combine knowledge checks with practical reasoning and, when appropriate, real hands-on work.

OUR LEARNING PHILOSOPHY

A path from first question to real-world application

A good lesson should help you understand what something is, why it matters, how it works, and how to tell when it doesn't.

Understand

Begin with a simple explanation, everyday comparison, and a clear mental model.

Apply

Work through visuals, interactive exercises, and automotive examples with feedback.

Demonstrate

Explain the reasoning, solve a problem, and know what needs more practice.

HOW IT FITS TOGETHER

Organized to grow with you

Our course framework helps learners move from a broad automotive system to a focused activity without losing their place.

Follow a learning pathway

  • Main course: an automotive system or major subject.
  • Subcourse: a focused subject within that system.
  • Unit: related lessons grouped around a goal.
  • Lesson: topics, explanations, and examples.
  • Activity and knowledge check: practice and feedback.

Take a focused route

Mini courses are planned as shorter, standalone explorations of a topic—such as Ohm's Law—without requiring a learner to complete a full main course first.

As we develop the platform, learners should be able to revisit earlier lessons and choose deeper challenges when ready.

See the course catalog →
MEET THE CHALLENGER

A little pressure. A lot of learning.

The Challenger is our playful teaching persona: a guide who asks the question behind the question, exposes shaky assumptions, and makes the next challenge feel worth taking on.

You can learn the core material without the extra challenge. When you're ready, The Challenger invites you to explain why, not just choose an answer.

THE CHALLENGER ASKS

“The lamp has a good battery. Why isn't it lighting up?”

Start with what the circuit needs, then decide what you'd test first. A correct guess is a start; a defensible diagnosis is the goal.

WHO WE'RE DESIGNING FOR

Different starting points. One shared goal: understanding.

Autonatomy is being designed for curious beginners, automotive students, instructors, and practicing technicians who want to revisit fundamentals or explore a system in greater depth.

Take a look around

Explore the connected sample pages while we continue building the courses and interactive learning tools.

Browse courses →

This is a development preview, not an accredited training program. Enrollment, saved progress, certificates, and payment features are not active.

SUPPORT

Contact & support

This preview is not yet a live service. Contact details and student support workflows will be added before launch.

Development preview

No support inbox or contact form is connected. Please do not enter personal information into this prototype.

← Back to homepage
AUTONATOMY · DEVELOPMENT TOOLS

Website readiness

Version 20 · Quality-review snapshot. The site is a working learning prototype, not a live student service.

QUALITY REVIEW

What has been checked

We inspected 477 local page/asset references across 25 HTML files and found no missing relative targets. In a browser-content test, 21 preview routes rendered at desktop and phone widths without page-wide horizontal overflow or JavaScript page errors. The six-question assessment displayed results at both widths.

This is a limited functional test, not a security or production-readiness certification. The test environment blocks direct browser navigation to file:// and localhost, so extracted-site clickthrough was checked by relative path rather than full end-to-end browser navigation.

Full test report: open documentation/QA_REPORT_V20.md from the downloadable ZIP.Return to Course Studio →
READY FOR LOCAL PREVIEW

What you can use now

Explore the homepage and connected course pages, read the sample blog, experiment with virtual labs, create course and Library drafts, and practice with the demonstration assessment. The single-file preview is convenient for phone review; the extracted ZIP is the multi-page development project.

Saved work depends on browser storage and the origin where you open the site. A different phone, a different browser, or a newly hosted copy does not automatically inherit your edits. Export your data regularly.

BEFORE A PUBLIC STUDENT LAUNCH

Critical remaining work

Separate authoring from public pages.Course Studio, Library Studio, and Simulation Studio are currently visible to website visitors. A real deployment needs private admin access and publishing from a trusted source.
Choose real data storage.Browser-local “Publish” is not a shared online catalog. Select a backend or build process so students on other devices receive the same approved material.
Add authentication and student records.Accounts, secure progress sync, assessments and permission management are not implemented.
Validate educational accuracy and accessibility.Review course claims, simulation assumptions, image alternatives, keyboard workflows and actual mobile devices before release.
Decide how to deploy.A static hosting preview can display fixed pages. A full student platform requires additional infrastructure for authoring, stored progress, and credentials.
YOUR NEXT ACTION

Test the extracted project on both devices

Extract Version 20 on your laptop. Open PREVIEW-OPEN-ME.html for an all-in-one preview, or open index.html for the individual-page website. Navigate through Home → Courses → Electrical Systems → Electrical Fundamentals → Unit 1 → Lesson 1. Then open Library → Blogs and Lab Center. Repeat on your phone using the all-in-one preview. Record any visual or interaction issues in the project change log.

Do not publicly upload this development project unchanged; it includes authoring tools and demonstration student features.

AUTONATOMY · COURSE CREATION SYSTEM

Course Studio

Create your own main courses, subcourses, units, lessons, and knowledge checks. Your course tree and student preview update as you work. Export both your editable course data and a standalone, student-facing HTML preview.

Website Readiness · v20 →
Home/Courses/Course Studio
Build & edit

Course editor

Choose a course part from the left, or select Add main course to begin. Add each level under its parent to keep the website organized.

Connected navigation preview

What your student sees

CONNECT TO THE CATALOG

Publish your course

Finish editing and select Save changes above, then publish a snapshot of your draft. Published courses appear in the main Course Catalog and become connected learning pages in this browser.

Local preview only: Publishing does not upload anything online or sync phone and laptop. Keep editable JSON backups and export the student page for sharing.

How this version works

Drafts remain editable in Course Studio. Select Publish to catalog after saving, and your course will appear in the catalog in the same browser. Export editable JSON and a student HTML page for durable backups and portable sharing.

The existing Electrical Fundamentals sample remains in the original website and is not editable here yet. Drafts do not become individual permanent pages of the main website until they are integrated into a later build. Local browser storage may not carry between phone and laptop or between different file previews: use JSON export/import to move work. No student accounts, grades, or certificate system is active.

AUTONATOMY · KNOWLEDGE LIBRARY

Explore beyond the course.

Read ideas that make automotive systems click. Then test what you know in interactive labs—at your own pace.

Read a blog →Enter Lab Center →
LIBRARY COLLECTIONS

Choose how you want to explore.

Two collections to start. We can add more later without changing the course structure.

Blogs
Read · Understand · Connect

Short, practical reads that explain the why behind automotive systems. Begin with an electrical diagnostic mystery.

Explore Blogs →
Interactive Lab Center
Test · Observe · Reason

Experiment with virtual controls, watch system responses, and make diagnostic decisions before touching a vehicle.

Explore Labs →
✎ Manage Library →
⚡ Simulation Studio →
How the Library fits: These resources are available outside a course. Lessons can also link here so a student can revisit an explanation or practice a skill without losing their place.
Recovered teaching resources: Earlier electrical illustrations, the product-catalog concept, and its three learning paths are now collected in one place. Open recovered resources →
LIBRARY · BLOGS

Ideas worth opening the hood for.

Short reads that connect electrical theory, real symptoms, and practical diagnostic thinking.

✎ Manage Library →
FEATURED READ

Latest from the library

Start with the featured example, then explore articles published from Library Studio below.

Electrical diagnostics

Why 12 Volts Doesn't Always Mean a Good Circuit

5-minute readConcept + diagnostic example

A meter reads battery voltage at the lamp connector, but the lamp stays dim. Learn why a voltage reading without load context can mislead you—and how voltage drop reveals the hidden problem.

Read the blog →
← Back to Library
LIBRARY · ELECTRICAL DIAGNOSTICS

Why 12 Volts Doesn't Always Mean a Good Circuit

An automotive circuit can look healthy on a voltmeter and still struggle to power its load. Here's why.

Featured blog · Electrical Fundamentals
About 5 minutesTechnical preview

A customer says their headlamp is dim. You probe the connector with a digital multimeter and see 12.6 V. Case closed? Not yet.

Voltage is potential—not proof of useful current

A voltage measurement tells you the electrical potential difference between two test points. It does not, by itself, tell you whether the circuit can deliver enough current while the headlamp is operating.

Imagine corrosion in a ground connection. With the lamp disconnected, a high-impedance digital meter may still show nearly the full battery voltage across the open connector. The meter draws very little current, so there is little voltage lost across that unwanted resistance during the measurement.

What changes when the lamp is connected?

The load draws current. Any resistance in the feed or ground path now develops a voltage drop. If too much of the source voltage is lost across a damaged connection, the lamp receives less voltage and may glow dimly.

Think like a diagnostician.

Ask not only “Is voltage present?” but “Where is the source voltage going while the circuit is doing its job?”

Use voltage-drop testing under load

With the circuit safely energized and the load operating, compare the voltage across each section of the path. A significant drop across a wire or connection points toward unwanted resistance in that section. Always use the vehicle's service information and appropriate test conditions for acceptable values.

  • Battery: Confirm available source voltage under the relevant load.
  • Feed path: Measure across the positive-side wiring and connections while current flows.
  • Ground path: Measure from the load's ground terminal to battery negative while current flows.
  • Load: Compare the voltage across the lamp to the source voltage and the observed behavior.

Take it from theory to practice

Our interactive Voltage Drop Detective lab lets you vary ground resistance, observe current and voltage at the lamp, and diagnose where voltage is being lost. The lab is a simplified teaching model, not a substitute for vehicle-specific procedures or safe hands-on assessment.

Try the Voltage Drop Detective lab →← More Blogs
New: Integrated standalone activities (86 imported sitewide)

Engine Performance Diagnostic Labs · Lighting System Diagnostic Labs · Semiconductors & Electronic Switching · Automatic Transmission Labs · Browse all →

New in v43: A reusable guided lesson player for the two preserved interactive activities. Explore guided activities →
ENTER-N-ACTION · INTERACTIVE LAB CENTER

Interact. Observe. Diagnose.

Practice hands-on reasoning through virtual automotive activities, simulations, and diagnostic labs designed to connect system behavior with technician decisions.

NEW · v44 Electrical Fundamentals guided sequenceUnderstanding Electricity: Guided Practice →Electric Charge and Current: Guided Practice →What Makes a Circuit Complete? Guided Practice →Electrical Effects →
✎ Manage Library →
OPEN LABS

Your first virtual workbench

Start with a simplified circuit that behaves differently when a ground connection develops unwanted resistance.

Live simulation · Electrical

Voltage Drop Detective

5–10 minute activityPhone & laptopInteractive preview

Adjust ground resistance in a 12.6 V lamp circuit, compare voltage readings under load, and identify which part of the circuit is stealing voltage from the lamp.

Launch interactive lab →
Live simulation · Advanced Electrical

Turn Signal & Hazard Light Lab

Lighting SystemsPhone & laptopDiagnostic practice

Operate left/right signals and hazards, inject faults and check simulated voltages.

Open interactive lighting lab →
YOUR EXPERIMENTS

Simulations made in Studio

Saved and locally published experiments appear here.

⚡ Create a simulation →
The Lab Center is a separate collection. We can link any lab to multiple lessons later without duplicating the lab itself.
JUST INTEGRATED · v41

Additional interactive workbenches

Open the existing student-mode HVAC exercise and Powertrain Live-Data Simulator without leaving Autonatomy.

HVAC · Existing student-mode preview

HVAC Electrical Circuit Lab

Follow the lesson and experiment with the SPST-controlled HVAC circuit. The embedded Falstad simulation requires internet access.

Open HVAC circuit lab →
Engine Performance · Existing interactive simulator

Powertrain Live-Data Simulator

Explore engine operating conditions and interpret simulated powertrain data in the preserved interactive activity.

Open live-data simulator →
INTERACTIVE LAB CENTER · ELECTRICAL DIAGNOSTICS

Voltage Drop Detective

The headlamp is getting dim. Change one ground connection and investigate what happens to current, the lamp, and the voltage drops.

Hands-on reasoning · Virtual model

This simplified series circuit uses a 12.6 V source, 0.08 Ω feed wiring, a fixed 5.6 Ω lamp model, and a ground path you can change. The model treats resistance as constant; a real incandescent lamp's resistance varies with temperature.

01 · MODIFY THE CIRCUIT

Change the ground connection

Move the slider to add corrosion-like resistance to the ground path. Observe the values with the lamp connected and energized.

0.03 Ω · healthy example2.00 Ω · severe fault

The numbers are illustrative; do not use them as universal pass/fail specifications for a particular vehicle.

02 · OBSERVE THE READINGS

Measurements under load

Source voltage12.60 V
Circuit current2.21 A
Voltage across lamp12.36 V
Ground-path drop0.07 V
Feed-path drop0.18 V
Total voltage drop12.60 V

Healthy example: most of the source voltage is available across the lamp.

03 · THE CHALLENGER

Find the fault

Choose Add bad ground, then compare all three voltage drops. Where is the unwanted resistance located?

Read the companion blog →← All labsLibrary home
AUTONATOMY · CREATOR TOOLS

Library Studio

Create, edit, preview, and organize blogs and interactive lab listings. Work locally, export an editable backup, and generate a standalone student-facing Library snapshot.

⚡ Open Simulation Studio →

Editor

Choose Blog or Lab to begin.

Select an entry to edit it, or add a new one.

Choose a Library entry to read or practice.

LIBRARY · CREATOR TOOLS · VERSION 17

Simulation Studio

Build configurable electrical experiments from three working models. Preview your student lab, save a draft, and export a standalone HTML experiment.

Experiment editor

Choose a starter model to begin.

Create a simulation to edit it here.

Student preview

LIBRARY · INTERACTIVE LAB CENTER

Your interactive simulation

Change the controls and explain what the measurements reveal.

AUTONATOMY · DEVELOPMENT TOOLS

Website Publisher

Create a portable, student-facing HTML website from your approved course, blog, and interactive lab content.

VERSION 21 · STATIC WEBSITE EXPORT

Make your learning site portable

First, save and Publish to Catalog in Course Studio, or set Library entries and simulations to Published. This exporter includes published content only; editable drafts, learning profiles, assessment records and local progress stay out of the download.

Your existing course and library examples are represented in the export by a sample electrical lesson, blog and voltage-drop lab. The full multi-page V20 development website and authoring interfaces are not included in this student-facing export.

Content in this browser

Checking published content…

What you can do with index.html

Open it directly on a phone or laptop to browse the pages and run the included labs without a server. When ready, upload it to the root of a static hosting site as index.html. Videos and externally hosted images still require an internet connection. This export does not provide user accounts, synced progress, payments or verified credentials.

Keep the ZIP project private. It contains authoring tools and experimental student features. Upload the generated student-facing index.html, not the complete development ZIP, when testing a public site.

← Course Studio Publishing details

AUTONATOMY · CONTENT & BACKUPS

Master Content

Keep your course drafts, published lessons, blogs, and interactive labs together in one portable project file.

VERSION 22 · PROJECT MANAGEMENT

One master file for your content

The site still saves edits in this browser during your work session. Use Export master JSON to save an editable project file you can move between devices, then import it to continue editing.

Current content in this browser

Checking…

The editable website preview is a single HTML file with the current content embedded. It is a private development copy, not a public student website. Open it on a second device, choose Master Content → Load packaged content, then confirm the restore. Changes on that device are not written back to the HTML automatically: export a new JSON file or preview after editing.

Open an existing master project

Importing replaces the existing course drafts, published courses, Library entries, and simulations in this browser. Back up your existing content first. Assessment records and student preferences are not part of the master content.

Publishing students’ website

Once you have finished editing and published your content inside Course Studio and Library Studio, open Release Packager to download a separate student-facing index.html. The master JSON and editable development preview are not public learner sites and should be kept private.

Read version 22 documentation →

PRIVATE DEVELOPMENT WORKSPACE · NO SECURE LOGIN

Website Administration

One place to check what you have created, open your editing tools, preserve your content, and prepare a student-facing export. The counts below are taken from this browser only.

Your content at a glance

Live inventory of your custom content. The original demonstration course, blog, and lab are not included in these counts.

0Published main courses
0Editable course parts
0Published custom blogs
0Published custom labs & simulations
View course catalog →View Library →

Manage your website

Select the part of Autonatomy you want to work on.

Master Content

Export or restore the four authoring collections as an editable JSON project.

Manage backups →

Publisher

Export published student-facing content as a separate HTML site.

Open Publisher →

Design Studio · New

Preview and save brand colors, typography, page spacing, logo mark, and homepage sections.

Open Design Studio →

Content status

Draft and locally published items are separate. Publishing here does not upload anything to the internet.

Content typeDraft / editablePublished snapshot
Course parts00
Blogs00
Library labs00
Simulation Studio00

A course part saved in Course Studio can also exist in its published snapshot, so those two columns need not add up to a total. Built-in sample content is not counted.

Website design reference

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    MY LEARNING · STUDENT EXPERIENCE

    Your Study Hub

    One starting point for the sample electricity lesson, interactive practice, knowledge check and reflection. See what you have recorded on this device and jump directly to the next activity.

    My Learning/Study Hub
    YOUR LEARNING LENS · OPTIONAL

    Make this practice yours

    Choose a starting point. You can switch levels whenever you need a simpler explanation or a greater challenge.

    Full learning profile →

    Preferences are saved locally in this browser when available.

    SAME PRINCIPLE · DIFFERENT EXPLANATIONS

    Electricity in your world

    Electrical current requires a closed conductive path.

    Automotive example

    A headlamp goes out when its only circuit path opens.

    THE CHALLENGER · PRACTICE, NOT A GRADE

    What happens when the switch opens?

    Practice level changes this question, not your access to lessons. A correct browser answer does not verify hands-on skill.

    ELECTRICAL FUNDAMENTALS · UNIT 1

    Understanding Electricity

    These are four sample activity records from the existing pages. They do not represent unit completion or a grade.

    0 / 4 sample learning activities
    PICK UP WHERE YOU LEFT OFF

    Continue with Understand

    Review the sample electricity lesson.

    Open Understand →
    1. 1
      Understand · concept lessonNot yet recordedRead the lesson, then use its “Mark lesson reviewed” button.Open lesson →
    2. 2
      Experiment · virtual labNot yet recordedTry the simulator, then mark virtual practice in the lab page.Open lab →
    3. 3
      Check understanding · concept questionsNot yet recordedAn attempt counts as participation, not a passing score.Open assessment →
    4. 4
      Reflect · explain it in your own wordsNot yet recordedSave your notes in the Guided Study Path.Open reflection →
    Continue with Understand0 / 4 sample learning activities · Review the sample electricity lesson.
    Continue → · Study Hub
    GUIDED LEARNING · SAMPLE STUDENT JOURNEY

    From “I get it” to “I can explain it.”

    One connected practice route through an electrical concept, an interactive experiment, a diagnostic decision and a knowledge check. Choose your pace, revisit any step and write your own explanation.

    Open sample lesson →
    STUDY PATH · YOUR CHOSEN PRACTICE LEVEL

    Electricity in your world

    Electrical current requires a closed conductive path.

    Automotive example

    A headlamp goes out when its only circuit path opens.

    THE CHALLENGER · PRACTICE, NOT A GRADE

    What happens when the switch opens?

    Practice level changes this question, not your access to lessons. A correct browser answer does not verify hands-on skill.

    My Learning/Electrical Fundamentals · Unit 1/Guided Study Path
    YOUR PRACTICE ROUTE

    Understanding Electricity

    Move between reading, exploring, diagnosis and reflection. Review flags show only what you've chosen to revisit; they are not grades or verified hands-on competency.

    0 of 5 practice steps reviewed
    Continue: Understand ↓
    01
    CONCEPT · 5 MIN PREVIEW

    Understand the circuit

    To explore

    Read the sample lesson. Locate the battery, switch, wires and lamp. Explain why a voltage difference and a complete conductive path are both required for steady current.

    Open lesson →
    02
    INTERACTIVE EXPLORATION

    Change one thing

    To explore

    Open the interactive electrical lab. Change voltage or resistance and predict the change in current. Then compare your prediction with the numerical readouts.

    Open interactive lab →
    03
    THE CHALLENGER · THINK LIKE A TECH

    Make a diagnostic decision

    To explore

    A headlamp is dim. With the lamp switched on, a voltage-drop measurement across its ground return is unusually high. What is the most useful conclusion?

    Explore the Library →
    04
    CONCEPT CHECK

    Check your understanding

    To explore

    Take the sample electrical knowledge assessment. Review the explanation for any question you miss; you may retry. Its result is separate from physical workshop skill.

    Open assessment →
    05
    IN YOUR OWN WORDS

    Explain it back

    To explore

    Your answer is a personal practice note, not graded or validated. Do not enter personal or sensitive information.

    Practice flags and notes are stored in this browser only.

    ← Unit overviewMy Learning →
    PRIVATE DEVELOPMENT WORKSPACE · V24

    Design Studio

    Adjust Autonatomy’s look, preview changes across the website, and save or transfer an editable theme. Your course content stays untouched.

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    A · AUTONATOMYCourses   Library
    LEARN · EXPLORE · CHALLENGEAutomotive knowledge is horsepower.

    Build understanding through clear explanations, interactive labs, and real diagnostic thinking.

    Explore courses →
    Electrical Fundamentals

    Unit 1 · Electrical theories & principles

    Keep contrast strong enough for students to read text and buttons comfortably.

    What saving actually does

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    MAIN COURSE · ENGINES

    Engine Systems

    Learn how an engine converts fuel energy into crankshaft rotation—and how the major mechanical, lubrication, cooling, and control systems work together.

    Explore Engine Fundamentals →
    THE BIG PICTURE

    What belongs in Engine Systems?

    This main course will hold the engine subjects we develop over time. The cards marked planned are a roadmap, not finished lessons.

    Available preview

    Engine Fundamentals

    Identify the main moving parts and understand the four-stroke operating cycle.

    Open subcourse →
    Planned

    Engine Mechanical Systems

    Study cylinders, pistons, rings, valvetrain, timing, sealing, and mechanical condition.

    Content not built yet
    Planned

    Lubrication & Cooling

    Follow oil and coolant flow and connect system operation to heat and friction control.

    Content not built yet

    Where this pathway starts

    1. Main courseEngine Systems
    2. SubcourseEngine Fundamentals
    3. Unit 1Engine Operation & Major Components
    4. Lesson 1How a Four-Stroke Engine Works
    5. Try itInteractive engine-cycle workbench + knowledge check

    Start with the moving parts.

    You'll follow the piston through a complete 720° four-stroke cycle and distinguish intake, compression, power, and exhaust.

    Enter Engine Fundamentals →

    ENGINE SYSTEMS · SUBCOURSE 01

    Engine Fundamentals

    Meet the components inside a reciprocating engine, then see how their movements work together through the four-stroke cycle.

    Open Unit 1 →Back to Engine Systems

    What you will learn

    Identify

    Recognize the piston, connecting rod, crankshaft, cylinder, camshaft, and intake/exhaust valves.

    Explain

    Describe how piston movement and valve operation produce the four-stroke cycle.

    Connect

    Explain how pressure acting on a piston creates torque at the crankshaft.

    Subcourse unit roadmap

    Unit 1 · Available

    Engine Operation & Major Components

    Engine parts, piston travel, and the four-stroke cycle. Three interactive sample lessons are available.

    Open Unit 1 →
    Unit 2 · Planned

    Engine Construction & Geometry

    Cylinder layouts, displacement, bore, stroke, compression ratio, and assemblies.

    Unit 3 · Planned

    Engine Systems & Service

    Lubrication, cooling, timing, inspections, and foundational service concepts.

    ENGINE FUNDAMENTALS · UNIT 01

    Engine Operation & Major Components

    Start with the engine’s major moving components and see how a four-stroke cycle converts pressure into rotation.

    Start Lesson 1 →Back to subcourse

    Your lesson roadmap

    Lesson 1 · Available

    How a Four-Stroke Engine Works

    Explore intake, compression, power, and exhaust in an interactive model.

    Open interactive lesson →

    What students should be able to explain

    • What each of the four strokes accomplishes.
    • Whether the piston moves upward or downward during each stroke.
    • Which valve is nominally open during intake and exhaust.
    • Why four strokes require two crankshaft revolutions in a typical four-stroke engine.

    This is a conceptual model. Real valve opening and closing events overlap the stroke boundaries, and engine designs vary.

    ENGINE FUNDAMENTALS · UNIT 01 · LESSON 01

    How a Four-Stroke Engine Works

    A four-stroke engine completes intake, compression, power, and exhaust in two crankshaft revolutions. Follow the piston and valves to see what changes during each stroke.

    Back to Unit 1Next: Piston & Crankshaft →

    Before you interact

    A stroke is one piston movement between top dead center (TDC) and bottom dead center (BDC). TDC is the piston's highest position; BDC is its lowest. The connecting rod and crankshaft turn this up-and-down motion into rotation.

    Intake

    Piston down; fresh air enters through the intake valve.

    Compression

    Piston up; both valves nominally closed as the charge is compressed.

    Power

    Combustion raises gas pressure and pushes the piston downward.

    On the exhaust stroke, the rising piston expels burned gases through the exhaust valve.

    Explore the complete engine cycle

    Tap each stroke or advance one stroke at a time. Watch the piston position, airflow arrows, and valve status change.

    IntakeExhaustCylinder

    Simplified piston positions and valve states; not an exact mechanical animation.

    INTERACTIVE WORKBENCH

    Intake

    Intake valve
    Exhaust valve
    Crank rotation
    Cycle length720° / 2 revolutions

    Check your understanding

    THE CHALLENGER

    Which stroke moves the piston upward with both valves closed?

    Practice feedback only. This answer is not saved as a grade.

    Connect this to real shop work

    Try explaining why a conventional four-stroke engine completes a cycle in 720° but the crankshaft turns only 360° per revolution. Then inspect a physical engine or training model to identify its piston, connecting rod, crankshaft, and valve train.

    A browser model demonstrates concepts; it does not verify hands-on proficiency. Actual spark and valve timing vary by engine.

    ← Back to Unit 1

    ENGINE FUNDAMENTALS · UNIT 01 · LESSON 02

    Piston, Rod & Crankshaft

    Trace how piston movement becomes crankshaft rotation. Select a component, turn the crank, and investigate what really happens at top and bottom dead center.

    ← Unit overviewNext: Valves & Camshaft →

    Start with the moving parts

    In a conventional reciprocating engine, pressure acts on the piston. The wrist pin joins the piston to the connecting rod, and the rod turns the crankshaft. The cylinder guides the piston; the flywheel helps smooth the crankshaft's speed. Real assemblies also have piston rings, bearings, lubrication and many other parts.

    Identify

    Piston and cylinder

    The piston travels between top dead center (TDC) and bottom dead center (BDC) inside the cylinder.

    Connect

    Wrist pin and rod

    The wrist pin pivots; the rod carries force between the piston and crank throw.

    Convert

    Crankshaft

    The crank throw converts the rod's changing force direction into torque on the rotating crankshaft.

    Explore the mechanism

    Choose a component to highlight it. Drag the crank-angle control to turn the crank and watch the piston and rod move. The geometry is a simplified slider–crank model drawn to scale relative to itself, not to a specific vehicle.

    TDCBDCSchematic · not a service diagram

    The crank rotates 360° for every revolution; the piston travels down and up once per revolution.

    COMPONENT EXPLORER
    PistonReceives gas force and moves inside the cylinder. Rings help seal the combustion chamber.
    Crank angle0°
    Piston travel from TDC0%
    Stroke positionTDC
    Rotation0.00 rev

    At exact TDC and BDC the piston briefly stops and reverses direction while the crank continues turning. Piston speed is not constant during a stroke.

    The Challenger: predict the movement

    QUICK KNOWLEDGE CHECK

    After the crankshaft rotates 180° from TDC, where is the piston in this model?

    Practice question only; not a recorded grade or a hands-on skills verification.

    Connect this to real shop work

    With an instructor and an approved training engine, identify the piston, wrist pin, connecting rod and crankshaft. Explain what you would inspect for wear and proper lubrication before reassembly. Follow the applicable service procedure; do not rotate or disassemble an engine that has not been made safe.

    ← Lesson 1Lesson 3: Valves & Camshaft →
    ENGINE FUNDAMENTALS · UNIT 01 · LESSON 03

    Valves & Camshaft Timing

    See how the camshaft opens valves and how valve motion is synchronized with a four-stroke engine's crankshaft.

    ← Unit overviewReview moving parts ↗

    What controls the valves?

    The crankshaft tracks piston movement. A timing belt, chain, or gears synchronize it with the camshaft, whose lobes open the valves through a valvetrain. Valve springs close the valves when their actuating mechanism permits. On a typical four-stroke engine, the camshaft turns at half the crankshaft speed.

    Intake valve

    Lets the fresh charge enter the cylinder when opened by the valvetrain.

    Exhaust valve

    Lets combustion products leave the cylinder when opened by the valvetrain.

    Timing drive

    Maintains the intended relationship between crankshaft position and camshaft position.

    Explore the simplified timing cycle

    Select a stroke or move the crank through 720°. The camshaft readout turns one full revolution while the crank completes two. Valve states are intentionally simplified to show each stroke's main purpose.

    IntakeExhaustCamshaft (1:2)Conceptual drawing · not actual valve timing
    TIMING EXPLORER
    StrokeIntake
    Crank0°
    Camshaft0°
    Valve statusIntake open
    IntakeIntake valve open; piston moves down and fresh charge enters.

    Real valve timing varies with engine design and operating conditions. Intake and exhaust valves may begin opening or finish closing before or after dead-center positions, and overlap may occur. This model illustrates the core cycle, not a timing specification or valve-clearance procedure.

    The Challenger: find the relationship

    QUICK KNOWLEDGE CHECK

    On a conventional four-stroke engine, the crankshaft rotates 720°. How far does the camshaft rotate?

    Practice question only; not a recorded grade or a hands-on skills verification.

    Connect this to real shop work

    On a safe, approved training engine, locate its camshaft drive and identify intake and exhaust valvetrain components. A service manual—not this conceptual model—determines actual alignment marks, interference-engine precautions, torque specifications and service procedures.

    ← Lesson 2Return to Unit 1 →
    Explore all integrated activities for this system View guided lessons, original simulations & earlier notes →
    New: Integrated standalone activities (86 imported sitewide)

    Advanced Electrical · Lighting Systems · Semiconductors & Electronic Switching · Lighting System Diagnostic Labs · Browse all →

    Main course · Advanced Electrical

    Advanced Electrical

    Explore vehicle electrical systems as complete circuits: understand how controls, loads, wiring and grounds work together—and how technicians locate faults when they don't.

    Explore Lighting Systems →All courses
    Home › Courses › Advanced Electrical

    Choose a system to investigate

    Subcourses give each advanced electrical system its own learning pathway. The Lighting Systems preview is available now; other pathways below are planned.

    Preview available

    Lighting Systems

    Turn signals, hazards and the relationship between driver commands, flashing lamps, power and ground.

    Open subcourse →
    Planned

    Starting & Charging Systems

    Control circuits, high-current paths, voltage drop and system diagnosis.

    Planned

    Body Electronics & Controls

    Relays, solid-state switching, modules and electrical control strategies.

    Development preview · This course does not yet include other lighting lessons or a complete assessment.

    Advanced Electrical · Subcourse

    Lighting Systems

    Follow the control request through the circuit to the lamps. Build the habit of predicting what should happen before choosing a diagnostic test.

    Open Unit 1 →Advanced Electrical
    Home › Courses › Advanced Electrical › Lighting Systems

    What you will learn

    Operate

    Explain left, right and hazard commands and the intended lamp behavior.

    Observe

    Compare normal operation with open lamps, lost power and unwanted resistance.

    Diagnose

    Use symptoms and simulated meter readings to choose a plausible fault location.

    Subcourse roadmap

    Unit 1 · Preview available

    Exterior Lighting

    Start with the Turn Signal & Hazard Light Lab. One interactive lesson is available now.

    Open Unit 1 →
    Unit 2 · Planned

    Headlamps & Parking Lamps

    Headlamp requests, beam selection, controls and electrical diagnosis.

    Unit 3 · Planned

    Stop & Reverse Lamps

    Switch inputs, output control and fault isolation.

    Lighting Systems · Unit 1

    Exterior Lighting

    Start with turn signals and hazard lights: what each switch requests, which lamps should illuminate, and what a fault changes.

    Begin Lesson 1 →Lighting Systems
    Home › Courses › Advanced Electrical › Lighting Systems › Unit 1

    Unit 1 lesson roadmap

    Lesson 1 · Available

    Turn Signals & Hazard Lights

    Operate the stalk, observe flashing lamps, introduce faults, and use the simulated meter and Challenger questions.

    Open lesson and lab →
    Lesson 2 · Available

    Headlamp & Parking Lamp Circuits

    Switch between park, low and high beams; introduce faults; interpret voltage and current readings.

    Open lesson and lab →
    Lesson 3 · Available

    Brake & Reverse Lamp Circuits

    Operate the pedal and gear selector, introduce faults and interpret voltage readings.

    Open lesson and lab →
    Lesson 4 · Available

    Exterior Lighting Diagnostic Challenge

    Receive a customer complaint, inspect all exterior lights, test circuits and identify the hidden fault.

    Open diagnostic challenge →
    Unit 2 · Available

    Lighting Control & Diagnostics

    Relay and BCM lighting control: compare the request, coil and lamp load circuits.

    Open Unit 2, Lesson 1 →
    Unit 2 · Available

    BCM Lighting Diagnostic Challenge

    Find a hidden fault with switch inputs, BCM commands and circuit measurements.

    Open Unit 2, Lesson 2 →
    Advanced Electrical · Lighting Systems · Unit 1 · Lesson 2

    Headlamp & Parking Lamp Circuits

    Predict which lamps should operate, introduce an electrical fault, and select a diagnostic test.

    ← Unit 1 roadmap
    Courses › Advanced Electrical › Lighting Systems › Unit 1 › Lesson 2

    Learning objectives

    Identify parking, low-beam and high-beam requests; distinguish a supply interruption from an individual lamp fault; explain why a loaded ground measurement matters.

    Observe

    Compare the four lamp indicators as the switch changes.

    Diagnose

    Introduce an open feed, open bulb or resistive ground.

    Explain

    Interpret simulated voltages and choose the next test.

    Interactive Headlamp & Parking Lamp Lab

    Simplified educational model. Vehicle-specific lighting strategies vary.

    ← Lesson 1: Turn SignalsUnit roadmap →
    ADVANCED ELECTRICAL · LIGHTING SYSTEMS · UNIT 1 · LESSON 3

    Brake & Reverse Lamp Circuits

    Operate the pedal and gear selector, introduce faults and diagnose circuit behavior.

    Unit roadmap →
    Courses › Advanced Electrical › Lighting Systems › Unit roadmap → › Lesson 2

    Learning objectives

    Identify parking, low-beam and high-beam requests; distinguish a supply interruption from an individual lamp fault; explain why a loaded ground measurement matters.

    Observe

    Compare the four lamp indicators as the switch changes.

    Diagnose

    Introduce an open feed, open bulb or resistive ground.

    Explain

    Interpret simulated voltages and choose the next test.

    Interactive Headlamp & Parking Lamp Lab

    Simplified educational circuit; actual vehicle strategies and readings vary.

    ← Lesson 2Unit roadmap →
    ADVANCED ELECTRICAL · LIGHTING SYSTEMS · UNIT 1 · LESSON 4

    Exterior Lighting Diagnostic Challenge

    Investigate a customer complaint, operate the vehicle and defend your diagnosis with measurements.

    Unit roadmap →
    Courses › Advanced Electrical › Lighting Systems › Unit roadmap → › Lesson 2

    Learning objectives

    Investigate an unknown fault, compare lamp behavior and loaded voltage measurements, then select a diagnosis and evidence.

    Observe

    Receive a customer complaint without knowing the hidden fault.

    Diagnose

    Operate the vehicle and measure circuit test points.

    Explain

    Submit your diagnosis and supporting evidence.

    Interactive Exterior Lighting Diagnostic Challenge

    Simplified educational circuits, not manufacturer-specific diagnostic procedures.

    ← Lesson 2Unit roadmap →
    ADVANCED ELECTRICAL · LIGHTING SYSTEMS · UNIT 2 · LESSON 1

    Relay & BCM Lighting Control

    Operate a driver request, relay coil and lamp circuit; compare direct switching and BCM control.

    Unit roadmap →
    Courses › Advanced Electrical › Lighting Systems › Unit roadmap → › Lesson 2

    Learning objectives

    Compare low-current control and high-current load circuits, introduce faults and interpret simulated meter readings.

    Observe

    Distinguish a driver request from the lamp current path.

    Diagnose

    Trace a BCM ground-side relay command and the switched contact output.

    Explain

    Measure supply and ground-side voltage to narrow down a fault.

    Interactive Relay & BCM Lighting Lab

    Simplified training architecture; use manufacturer service information for actual vehicles.

    ← Lesson 2Unit roadmap →
    ADVANCED ELECTRICAL · LIGHTING SYSTEMS · UNIT 2 · LESSON 2

    BCM Lighting Diagnostic Challenge

    Investigate a hidden fault by comparing the driver request, BCM command, relay control and lamp circuit.

    Unit roadmap →
    Courses › Advanced Electrical › Lighting Systems › Unit roadmap → › Lesson 2

    Learning objectives

    Receive a customer complaint, operate the headlamp switch, inspect scan-tool data and use simulated meter readings to support your diagnosis.

    Observe

    Compare the driver request with the BCM command.

    Diagnose

    Test the relay coil supply, ground-side control and contact output.

    Explain

    Submit a fault diagnosis with supporting evidence.

    Interactive BCM Diagnostic Challenge

    Simplified training architecture; use manufacturer service information for actual vehicles.

    ← Lesson 2Unit roadmap →
    Advanced Electrical · Lighting Systems · Unit 1 · Lesson 1

    Turn Signals & Hazard Lights

    Operate the lighting circuit. Then introduce a fault, compare symptoms and simulated voltage readings, and explain your diagnosis.

    Go to the simulator ↓Unit 1 roadmap
    Home › Courses › Advanced Electrical › Lighting Systems › Unit 1 › Lesson 1

    What you should be able to explain

    Normal operation

    Which lamps flash for left, right and hazard requests?

    Fault behavior

    What changes when a bulb opens, a fuse opens or ground resistance rises?

    Diagnostic reasoning

    Which observation or voltage measurement would help locate the fault?

    Interactive Turn Signal & Hazard Light Lab

    Work through the controls, fault selection, simulated meter and Challenger exercise below. The same simulation is also available in the Library.

    Open lab full screen →Return to Unit 1

    Educational simulation: 12-volt simplified model. Vehicle wiring, flasher logic, lamp monitoring and fault behavior vary by model.

    MAIN COURSE · DRIVETRAIN

    Automatic Transmissions & Transaxles

    Follow engine torque through the converter, geartrain, holding devices, hydraulic controls and finally to the drive wheels.

    Explore Transmission Fundamentals →
    THE BIG PICTURE

    What belongs in this main course?

    A modular pathway from fundamental parts to service and diagnosis. Only Transmission Fundamentals Unit 1 is available as a sample today.

    Available preview

    Automatic Transmission Fundamentals

    Torque conversion and foundational planetary power flow.

    Open subcourse →
    Planned

    Hydraulics & Controls

    Pump, valve body, solenoids, pressure regulation, clutch application and diagnosis.

    Content not built yet
    Planned

    Service & Diagnostics

    Fluid, inspections, faults, scan data and transmission-specific testing.

    Content not built yet

    Start here: trace the power path

    1. Main courseAutomatic Transmissions & Transaxles
    2. SubcourseAutomatic Transmission Fundamentals
    3. Unit 1Torque Transfer & Gearsets
    4. Lesson 1How a Torque Converter Works
    5. Lesson 2Planetary Gear Power Flow

    Learn how parts work together.

    Use the converter and planetary simulators to explain the difference between transmitting torque, multiplying torque, changing ratio and reversing rotation.

    Begin the subcourse →

    New: Integrated standalone activities (86 imported sitewide)

    Automatic Transmission Labs · Browse all →

    AUTOMATIC TRANSMISSIONS · SUBCOURSE

    Transmission Fundamentals

    Get to know the basic transmission components and explain how torque, speed and direction change along the power path.

    Open Unit 1 →Back to Main Course

    What you will learn

    Identify

    Distinguish the impeller, turbine, stator, sun gear, ring gear and carrier.

    Explain

    Describe fluid torque transfer, converter slip and lockup clutch function.

    Predict

    Determine gearset output direction and speed when different members are held or driven.

    Subcourse unit roadmap

    Unit 1 · Available

    Torque Transfer & Gearsets

    Two interactive lessons: torque converter operation and planetary power flow.

    Open Unit 1 →
    Unit 2 · Planned

    Apply & Holding Devices

    Multi-plate clutches, bands, one-way devices and power-flow combinations.

    Unit 3 · Planned

    Hydraulics & Electronic Controls

    Fluid pressure, valve body circuits, solenoids, sensors and control logic.

    TRANSMISSION FUNDAMENTALS · UNIT 01

    Torque Transfer & Gearsets

    Study how a fluid coupling transmits input torque and how a simple planetary gearset can change speed, direction and torque.

    Start Lesson 1 →Back to Subcourse

    Your lesson roadmap

    Available · Lesson 1

    How a Torque Converter Works

    Explore impeller, turbine, stator and lockup clutch behavior under different driving conditions.

    Open interactive lesson →
    Available · Lesson 2

    Planetary Gear Power Flow

    Drive, hold and connect gearset members; observe how output speed and direction change.

    Open interactive lesson →
    Available · Lesson 3

    Holding & Apply Devices

    Apply or release an input clutch, band, one-way clutch and direct clutch; investigate reaction, coast and incompatible commands.

    Open interactive lesson →

    Explain it before you diagnose it

    By the end of this preview, distinguish converter torque multiplication from planetary gear reduction; identify what makes output reverse; and explain why converter lockup changes slip without changing the gearset's selected ratio.

    TRANSMISSION FUNDAMENTALS · UNIT 01 · LESSON 01

    How a Torque Converter Works

    Explore how the impeller transfers energy to transmission fluid, how the turbine receives it, and when the stator and lockup clutch change converter behavior.

    ← Unit OverviewNext: Planetary Gearsets →

    Start with the major components

    A conventional hydrodynamic torque converter couples the engine to a transmission through moving fluid. The engine-driven impeller accelerates fluid; the turbine extracts energy from that fluid; the stator redirects returning fluid during torque multiplication; and the lockup clutch can create a more direct mechanical connection.

    Impeller

    Connected to the converter housing and driven by the engine; sends fluid toward the turbine.

    Turbine

    Receives momentum from fluid and transmits torque to the transmission input.

    Stator

    On a one-way clutch, redirects return flow when useful and freewheels when the flow direction changes.

    Converter behavior and lockup strategy vary by design. This teaching model illustrates operating principles; it is not a vehicle-specific test procedure.

    Explore converter operation

    Select a condition to see how fluid slip, stator action and lockup differ. The descriptions represent general principles, not measured torque or efficiency values.

    IMPELLERTURBINESTATORENGINE INPUTOUTPUTConceptual flow only

    Fluid arrows are conceptual. This drawing does not calculate or animate actual flow velocity.

    Acceleration

    Impeller speed
    Turbine speed
    Stator
    Lockup clutch

    The Challenger: explain the change

    When a fully applied lockup clutch eliminates converter slip, what changes directly?

    ← Unit overviewLesson 2: Planetary Gear Power Flow →
    TRANSMISSION FUNDAMENTALS · UNIT 01 · LESSON 02

    Planetary Gear Power Flow

    Learn what changes when you drive, hold or link the sun gear, ring gear and carrier. Predict output speed and direction with an idealized simple planetary gearset.

    ← Torque ConverterUnit Overview →

    Meet the gearset

    The sun gear is centered inside the ring gear. Planet gears mesh with both and rotate on a carrier. A gearset's output depends on which member receives input, which is held, and which is used as output.

    Drive

    Connect a gearset member to the input torque path.

    Hold

    Prevent a member from rotating using an appropriate reaction or holding device.

    Output

    Use the remaining member to transmit torque and rotation downstream.

    Try the planetary power-flow simulator

    Choose a simplified configuration and change input speed. Observe forward reduction, reverse direction or 1:1 direct drive.

    SUNRINGCARRIER links planet centers

    Diagram identifies members only; it is not an animated meshing or clutch schematic.

    Sun gear
    Ring gear
    Carrier

    Input speed: 1,000 rpm

    Idealized sample gearset: 30 sun teeth / 70 ring teeth. No clutch slip or mechanical losses modeled.

    Output speed
    Input:output speed ratio


    The Challenger: reverse power flow

    In our simple planetary reverse example, which member is held?

    Real automatic transmissions use multiple gearsets and apply/holding devices. This calculator models a single ideal gearset only, not a particular vehicle's 1st–6th/reverse power flow or torque capacity.

    ← Lesson 1: Torque ConverterNext: Holding & Apply Devices →
    TRANSMISSION FUNDAMENTALS · UNIT 01 · LESSON 03

    Holding & Apply Devices

    Watch how an input clutch, band, one-way clutch and direct clutch affect the power flow of one simplified planetary gearset.

    ← Planetary Gear Power FlowUnit Overview →

    Meet the devices

    A friction clutch couples rotating members to transmit torque. A band can hold a drum and the member connected to it stationary. A one-way clutch can hold or transmit torque in one direction and overrun in the other. Real transmissions combine these devices in different ways; a device name alone does not identify which gearset member it controls.

    Forward clutch

    In this teaching example, connects the engine input to the sun gear.

    Band

    Provides a positive ring-gear hold while applied, including the illustrated coast condition.

    One-way clutch

    Supplies ring reaction in the modeled forward-drive direction; overruns during the modeled coast condition.

    Direct clutch

    Locks sun and ring together for 1:1 gearset rotation when an input path exists.

    Interactive device-apply workbench

    Use a single ideal 30-tooth sun / 70-tooth ring planetary gearset. The carrier is the output in forward drive. Select which devices are applied, then switch between drive and coast to investigate the reaction path.

    FORWARD REDUCTION

    Ring is held; carrier is the output

    SUN
    Input    RING
    Held    CARRIER
    Output
    Ideal speed ratio3.33:1
    Carrier output300 rpm

    Adjust the controls to inspect device behavior.

    Path: Input sun → carrier; ring held

    Educational assumptions: ideal single planetary gearset, fixed sample tooth counts, no hydraulic pressure, clutch slip, torque capacity, shifting sequence or vehicle-specific holding-device layout. In coast, the slider is not a prediction of wheel-driven speed. An incompatible band/direct-clutch combination is flagged instead of simulated.

    Observe → reason → verify

    Experiment A: Start with the one-way clutch selected and the band off. Change Engine driving vehicle to Vehicle coasting. Explain why a one-way clutch can provide reaction in one torque direction yet release when torque reverses.

    Experiment B: Apply the band and observe the coast display. In this model, a positive ring hold supplies a mechanical path for engine braking; a one-way clutch alone does not.

    Experiment C: Turn on direct clutch. Observe 1:1 when the band is off, then apply the band. Explain why locking the ring to the driven sun and holding the ring stationary are incompatible commands.

    The Challenger · Which device keeps the ring held during the modeled coast condition?

    The Challenger · Why does the model flag direct clutch + ring-holding band?

    ← Lesson 2: Planetary Power FlowUnit 1 overview →
    Explore all integrated activities for this system View guided lessons, original simulations & earlier notes →
    New: Integrated standalone activities (86 imported sitewide)

    Automotive HVAC · Fundamentals · Browse all →

    COURSE · INTERACTIVE PREVIEW AVAILABLE

    Automotive HVAC

    Explore HVAC electrical controls, then apply what you learn using a circuit simulator.

    Open guided interactive lab & knowledge check →

    Home / Courses / HVAC

    HVAC Electrical Controls

    An existing student-mode lesson with an embedded circuit activity. This is one lesson preview, not a complete HVAC course.

    Use the guided activity to observe how switching affects circuit operation. Apply the same thinking to automotive control and electrical diagnosis.

    Start the HVAC electrical lab →
    Explore all integrated activities for this system View guided lessons, original simulations & earlier notes →
    New: Integrated standalone activities (86 imported sitewide)

    Engine Performance Diagnostic Labs · Browse all →

    COURSE · INTERACTIVE PREVIEW AVAILABLE

    Engine Performance

    Connect engine operating conditions with the data a technician uses to make diagnostic decisions.

    Open guided interactive lab & knowledge check →

    Home / Courses / Engine Performance

    Live-Data Interpretation

    Practice with an existing Powertrain Live-Data Simulator. This is a standalone exercise, not a completed Engine Performance course.

    Observe simulated data, compare changes in engine operation, and make a diagnosis from evidence rather than guessing.

    Start the live-data simulator →
    HVAC · ELECTRICAL CONTROLS

    HVAC Electrical Circuit Lab

    Student-mode circuit exploration using the preserved lesson and Falstad simulation.

    Courses / HVAC / Electrical Circuit Lab
    This preserved lesson preview loads a Falstad simulation from the internet. If the embedded activity does not load, check your network connection and use the direct lesson link below.

    Practice activity

    Before switching, predict the circuit state. Operate one switch at a time, observe the result, then explain what changed in the current path.

    Open guided lesson & knowledge check →Open lesson in its own tab ↗← HVAC overviewAll interactive labs
    ENGINE PERFORMANCE · VIRTUAL PRACTICE

    Powertrain Live-Data Simulator

    Use the preserved interactive simulator to connect operating conditions and powertrain sensor data.

    Courses / Engine Performance / Live Data
    This is a learning simulator, not a scan tool or actual vehicle measurement. Check its stated assumptions before drawing diagnostic conclusions.

    Practice activity

    Choose an operating condition, predict which signals should change, then compare the simulator’s readouts with your prediction.

    Open guided lesson & knowledge check →Open simulator in its own tab ↗← Engine Performance overviewAll interactive labs
    Browse every available learning activity by course: Open the unified learning catalog →
    New: Integrated standalone activities (86 imported sitewide)

    Electrical Fundamentals · Advanced Electrical · Lighting Systems · Automotive HVAC · Fundamentals · Browse all →

    AUTONATOMY · HISTORICAL INTEGRATION SNAPSHOT

    Preserved earlier course map

    This preserved integration snapshot documents an earlier development stage. Its counts and completion labels are historical; use Course Player and the current Directory for authoritative curriculum status.

    NEW · v44 Electrical Fundamentals guided sequenceUnderstanding Electricity: Guided Practice →Electric Charge and Current: Guided Practice →What Makes a Circuit Complete? Guided Practice →Electrical Effects →
    New in v43: A reusable guided lesson player for the two preserved interactive activities. Explore guided activities →
    Development status: An outlined subcourse is not a finished lesson. The linked pages below are present in the current preview; unlinked topics remain outline-only until their source is integrated and tested.

    This map keeps our latest Automotive Foundations and Electrical & Electronics outline visible while showing the current working preview routes for the other course areas. The full approved syllabus still needs to be checked against the latest complete outline.

    7 course areas mapped32 linked preview routes2 preserved standalone lab files
    Outline only

    Automotive Foundations & Vehicle Literacy

    01.1 through 01.7 have original first-pass interactive learning modules. Practical vehicle training and assessment remain to be developed.

    Start 01.1 · Automobile History, Evolution & Industry →

    Start 01.2 · Vehicle Types, Identification & Specifications →

    Start 01.3 · Automotive Systems Overview →

    Start 01.4 · Shop Safety, Environmental Practices & High-Voltage Awareness →

    Start 01.5 · Hand Tools, Shop Equipment & Precision Measurement →

    Start 01.6 · Fasteners, Materials & Service Information →

    Start 01.7 · Vehicle Inspection, Maintenance & Ownership Basics →

    Subcourse outline
    • Automobile History, Evolution & Industry
    • Vehicle Types, Identification & Specifications
    • Automotive Systems Overview
    • Shop Safety, Environmental Practices & High-Voltage Awareness
    • Hand Tools, Shop Equipment & Precision Measurement
    • Fasteners, Materials & Service Information
    • Vehicle Inspection, Maintenance & Ownership Basics
    Working preview

    Electrical & Electronics Fundamentals

    Open course preview →
    Subcourse outline
    • Electricity, Energy & Electrical Quantities
    • Series, Parallel & Combination Circuits
    • Ohm’s Law, Watt’s Law & Circuit Analysis
    • Passive & Electromechanical Components
    • Semiconductors & Electronic Switching
    • Wiring Diagrams, Harnesses & Connectors
    Available pages and lessons (6)
    Working preview

    Advanced Electrical

    Open course preview →
    Subcourse outline
    • Lighting Systems
    Available pages and lessons (8)
    Working preview

    Engines

    Open course preview →
    Subcourse outline
    • Engine Fundamentals
    Available pages and lessons (5)
    Working preview

    Engine Performance

    Open course preview →
    Subcourse outline
    • Engine Performance Fundamentals
    • Powertrain Live-Data Practice
    Available pages and lessons (1)
    Working preview

    Automatic Transmissions & Transaxles

    Open course preview →
    Subcourse outline
    • Transmission Fundamentals
    Available pages and lessons (5)
    Working preview

    Automotive HVAC

    Open course preview →
    Subcourse outline
    • HVAC Electrical Controls
    Available pages and lessons (1)

    The source-of-truth inventory for this page is included as docs/COURSE_MAP.json in the download. It records actual internal routes separately from planned subjects.

    ← Course catalog Explore the Interactive Lab →

    AUTONATOMY · REUSABLE LESSON PLAYER

    Guided interactive lab

    Choose an integrated activity and practice a complete learning cycle.

    Courses / Course & Lab Center / Guided lesson
    Development preview
    ELECTRICAL FUNDAMENTALS · UNIT 01 · LESSON 04

    Electrical Effects: Light, Heat & Magnetism

    Explore three ways electrical energy changes form, and discover why a real electrical load may produce more than one effect at a time.

    New interactive concept lessonAdjustable low-voltage modelFormative knowledge check
    Open guided practice & knowledge check →
    Home/Electrical Fundamentals/Unit 1/Lesson 4
    Before you begin

    What you will learn

    • Identify light, heating and magnetic effects of electrical current.
    • Recognize that energy is transferred, not created, and that one load may produce multiple effects.
    • Use a simplified resistive-load model to relate voltage, current, resistance and power.
    01 · Understand

    Where does electrical energy go?

    An electrical source can transfer energy to a load. A lamp makes light and heat; a heating element primarily produces heat; and an energized coil produces a magnetic field while its winding also warms.

    In a circuit, the source delivers electrical power to the loads and conductors. The energy changes form; it is not lost or created. For a DC ideal resistive model, current is I = V / R and electrical power is P = V × I.

    Important distinction: Real lamps, LEDs, coils and heating elements do not all behave like a fixed resistor. The virtual models below use an ideal constant resistance only to practice the relationships between voltage, current and input power; they do not predict real brightness, coil force or temperature.
    02 · Explore

    Choose a load and vary its input

    Choose which effect to observe. Close the virtual switch and adjust voltage and resistance. Watch how the modeled input power changes. This is a conceptual 0–12 V workbench; it is not a wiring or repair procedure.

    Choose an example load
    Lamp model

    Light is useful output; a real lamp also gives off heat.

    Modeled effect indicator (relative only)

    In this teaching model the visual indicator follows input power, not measured brightness.

    SwitchOPEN
    Modeled current0 A
    Input power0 W
    Energy in 10 s0 J

    Model assumptions: steady DC source, one complete path when closed, a fixed ideal resistance, and no switching transients. Current and power readouts are calculated values, not measurements on a vehicle. The indicator illustrates relative energy transfer only.

    03 · The Challenger

    Predict it before moving the slider.

    In the ideal model, close the switch with 12 V and 12 Ω. Then reduce source voltage to 6 V without changing resistance. What happens to current and input power?

    04 · Connect it to the workshop

    What the model does—and does not—show

    A vehicle lamp, rear-window defroster and relay coil make different effects useful. A relay coil is an electromagnet when energized; its winding can also produce heat. A heater transfers electrical energy into thermal energy. The efficiency and operating characteristics of real devices differ from these ideal examples.

    Safety and practical skill: This virtual circuit does not verify physical measurement skills. Use an appropriate supervised, current-limited low-voltage training board for hands-on exploration. Do not connect improvised loads to a vehicle or high-voltage system.
    ← Lesson 3Guided practice →Unit 1 roadmap →

    Unit 1 now has four interactive concept lessons. The unit assessment remains a formative sample; no skills or credentials are awarded.

    AUTONATOMY · STRUCTURED LEARNING

    Mini-Courses & Learning Sequences

    Browse by main course and subcourse. Original multi-section workbenches are preserved as interactive mini-courses; unit sequences and lab collections organize existing material without claiming new lessons or verified completion.

    SOURCE-RECOVERED STRUCTURE

    Original mini-course sequences

    Three independently numbered ten-part sequences from our earlier Electrical Components, Semiconductor, and Wiring work. Open the original interactive pages in their original teaching order; this restores course organization without rewriting or duplicating the activities.

    29 of 30 original slots have a matching interactive file. The Electrical Components introduction is retained as an original planned sequence slot; the source audit found no separately verified dedicated interactive file, so it is not represented as completed content. The older “20 mini-courses” tally was not the full count across these three sequences.

    02.4 · Passive & Electromechanical Components

    10 originally planned mini-course topics · 9–10 linked original interactive pages

    1. Introduction to Electrical ComponentsPlanned sequence slot · no dedicated source recovered
    2. Resistors & Variable Resistance Original interactive page available
    3. Capacitors Original interactive page available
    4. Inductors & Coils Original interactive page available
    5. Transformers Original interactive page available
    6. Switches & Circuit Control Original interactive page available
    7. Relays & Solenoids Original interactive page available
    8. Fuses, Fusible Links & Circuit Breakers Original interactive page available
    9. Diodes & Circuit Protection Original interactive page available
    10. Component Identification & Testing Original interactive page available

    02.5 · Semiconductors & Electronic Switching

    10 originally planned mini-course topics · 9–10 linked original interactive pages

    1. Semiconductor Fundamentals Original interactive page available
    2. Bipolar Junction Transistors (BJTs) Original interactive page available
    3. Field-Effect Transistors & MOSFETs Original interactive page available
    4. Electronic Switching & PWM Control Applications Original interactive page available
    5. Integrated Circuits & Automotive Electronic Control Modules Original interactive page available
    6. Digital Logic & Electronic Decision-Making Original interactive page available
    7. Signal Conditioning & Automotive Sensor Interfaces Original interactive page available
    8. Semiconductor Fault Diagnosis & Electronic Driver Testing Original interactive page available
    9. Power Electronics & Automotive Applications Original interactive page available
    10. Semiconductor Systems Integration & Final Capstone Original interactive page available

    02.6 · Wiring Diagrams, Harnesses & Connectors

    10 originally planned mini-course topics · 9–10 linked original interactive pages

    1. Introduction to Automotive Wiring Diagrams Original interactive page available
    2. Automotive Wiring, Harnesses & Wire Identification Original interactive page available
    3. Automotive Connectors, Terminals & Splices Original interactive page available
    4. Wiring Diagram Interpretation & Circuit Tracing Original interactive page available
    5. Automotive Power Distribution & Ground Circuits Original interactive page available
    6. Automotive Wiring Faults & Intermittent Circuit Diagnosis Original interactive page available
    7. Automotive Wiring Repair & Harness Restoration Original interactive page available
    8. Advanced Wiring Diagrams & Diagnostic Applications Original interactive page available
    9. Automotive Schematic Symbols & Component Identification Original interactive page available
    10. Final Capstone Original interactive page available

    These 30 entries describe original intended teaching sequences. The existing 44-module catalog also includes unit sequences, lab collections, and a single ADAS lesson; those remain available separately. Download the full 44-module / 136-subcourse mapping (JSON).

    AUTONATOMY · INTEGRATED STANDALONE ACTIVITIES

    Standalone Lesson & Lab Library

    Independent interactive lessons and simulations are now accessible inside this master website. Open a topic and practice in the integrated player, or open the original full page.

    The original standalone source for each activity is preserved in the standalones folder. Progress saved by individual activities may remain separate from the master dashboard.

    AUTONATOMY / HISTORICAL COURSE ACCESS

    Earlier Course Modules · v89

    These pages were present in the earlier v89 preview but not as native course pages in v47. Explore them here while we reconcile them with the newer master. The original v89 is preserved intact in a separate local file inside this same website package.

    Historical preview, not a completed migration. The framed site uses its original interface and retains its browser-local records. Self-marked Brakes and Suspension lesson completion can be summarized under My Learning in this same site; other historical outcomes remain separate. Duplicate topics may exist in the 86 standalone activities.

    ← Current course map · Current standalone library · Open original v89 in a new tab ↗

    Historical modules not present as current native pages

    Select a historical module to open it in the preserved v89 preview below. This is not a claim that its lesson has been ported to the reusable lesson player.

    Engine Performance (24)

    Fuel Trim & Air–Fuel DiagnosisHistorical route: engine-performance-lesson-01Oxygen Sensor & Air–Fuel FeedbackHistorical route: engine-performance-lesson-02MAF & MAP DiagnosticsHistorical route: engine-performance-lesson-03Electronic Throttle ControlHistorical route: engine-performance-lesson-04Ignition Timing & Spark AdvanceHistorical route: engine-performance-lesson-05Crankshaft & Camshaft Position SensorsHistorical route: engine-performance-lesson-06Fuel Injector Timing & Pulse WidthHistorical route: engine-performance-lesson-07Fuel Pressure & Delivery DiagnosticsHistorical route: engine-performance-lesson-08Misfire Detection & Diagnostic ReasoningHistorical route: engine-performance-lesson-09Catalytic Converter & Downstream Oxygen Sensor DiagnosticsHistorical route: engine-performance-lesson-10EVAP System & Leak DiagnosticsHistorical route: engine-performance-lesson-11Exhaust Gas Recirculation (EGR) DiagnosticsHistorical route: engine-performance-lesson-12Variable Valve Timing (VVT) DiagnosticsHistorical route: engine-performance-lesson-13Turbocharger Boost & Charge-Air DiagnosticsHistorical route: engine-performance-lesson-14PCV, Crankcase Pressure & Intake Vacuum DiagnosticsHistorical route: engine-performance-lesson-15Engine Compression & Cylinder Leak-Down DiagnosticsHistorical route: engine-performance-lesson-16The Challenger: Engine Performance Diagnostic CapstoneHistorical route: engine-performance-lesson-17Air–Fuel Control & FeedbackHistorical route: engine-performance-unit-01Applied Engine Performance DiagnosticsHistorical route: engine-performance-unit-02Cranks, but Won’t Start: A Diagnostic Decision LabHistorical route: engine-performance-unit-02-lesson-01Starts, Then Stalls: A Diagnostic Decision LabHistorical route: engine-performance-unit-02-lesson-02Hesitation & Loss of Power Under LoadHistorical route: engine-performance-unit-02-lesson-03Rough Idle & Idle Speed ControlHistorical route: engine-performance-unit-02-lesson-04Hard Starting: Cold vs. HotHistorical route: engine-performance-unit-02-lesson-05

    Lighting Systems (2)

    PWM Lighting Control LabHistorical route: ae-lesson-07Automatic Headlamp & Sensor LabHistorical route: ae-lesson-08

    Automatic Transmissions (3)

    Hydraulic & Electronic ControlsHistorical route: at-unit-02Hydraulic Pressure & Clutch ApplyHistorical route: at-unit-02-lesson-01Valve Body & Shift Solenoid LogicHistorical route: at-unit-02-lesson-02

    Course pages & study resources (1)

    Current course additions · v89Historical route: master-curriculum

    Historical v89 course viewer

    Open full page ↗

    External circuit embeds may require an internet connection. Use the original full-page link if a device blocks embedded file navigation.

    Explore mini-courses by subcourse

    Organized learning pathways link all 86 existing original activity files. Open the mini-course map →

    AUTONATOMY / ONE LEARNING CATALOG

    Learn by system. Practice in one place.

    Select a system to find its guided introductions, original interactive units, diagnostic workbenches, and related earlier lesson notes. Original activities are preserved; this catalog is the single entry point.

    What counts as integrated? All 86 interactive standalone files open through the master site and retain their original interface. Six guided activities and the archived v89 pages remain separate learning experiences; lesson scores and progress are not unified. Related topics are linked, not claimed to be identical or merged into one lesson.

    Earlier course pages without an equivalent current activity

    These four earlier unit or curriculum pages are preserved for review and do not have a one-to-one standalone activity. They still use the archived v89 interface.

    Browse all earlier v89 pages → · My practice log →

    18-Course Directory / Existing coursework

    Brakes & Suspension

    My Learning →

    These lessons and simulations use their preserved Version 89 course engines inside the new course navigation. Self-marked Brakes and Suspension lesson completion is read from the original browser-local records and summarized under My Learning when viewed from this same site. Lab outcomes and hands-on competency are not automatically verified.

    RECOVERED FROM EARLIER AUTONATOMY DEVELOPMENT

    Electrical Fundamentals · Historical Unit 1

    This is a preserved alternate learning pathway from the earlier v71 build. The current master lessons are not replaced, and completing the historical challenge does not automatically grade a current mini-course.

    Continue learning with the recovered material

    The earlier Unit 1 overview, standalone Electrical Effects lesson, and eight-question Challenger concept check have been recovered. Their broken legacy navigation was adapted to this master site, and the original retrieved text is archived for comparison.

    Earlier Unit 1 roadmapSix original pathway steps; existing core lessons open in the current master. Electrical Effects · earlier interactive lessonRecovered voltage/resistance interactive model; alternative to the current lesson, not another new mini-course. Unit 1 Challenger · eight-question concept checkHistorical quiz; score is browser-local to the earlier Unit 1 storage key and not synchronized with the central dashboard. Current Electrical Effects lessonReturn to the present master course version. Full approved curriculumReturn to the 18-course directory.

    Primary standalone activity crosswalk loading…

    Individual links are provided below approved subcourse headings; activities remain preserved in the standalone and mini-course catalogs. Directory placement does not imply a complete subcourse.

    Version 70 · existing-material reconciliation

    18-course learning directory

    Find our existing mini-courses, unit sequences, labs, and earlier course pages under their approved main courses. These links do not imply a course is complete.

    Curriculum integration checkpoint: All 136 enumerated September 23 approved subcourse titles are now registered for Courses 01–18 (61 previously registered and 75 recovered). The earlier 135 figure was a miscount; registration does not mean a subcourse is complete.
    Existing Engine Performance, HVAC & Transmission subjects: 40 existing topic entries from earlier builds are now directly linked under the relevant approved subcourses (22 Engine Performance, 16 HVAC, 2 Transmission). Historical and newer activities are presented together where both exist. These placements are provisional and not new lessons or completion certificates. Download the 40-topic source crosswalk.
    Historical Brakes & Suspension placement: 82 existing lessons, 17 labs, and 16 challenges (115 original activities) are now linked within their related approved Course 12/13 subcourse headings. Topic-level placements are provisional; historical lab/quiz results are not centrally scored. Download item-level source crosswalk.
    What this directory maps: 18 main courses · 44 existing learning modules · 86 uniquely assigned standalone activities. The 44 modules include 27 interactive mini-courses, three capstone activities, seven lab collections, six unit sequences, and one single lesson. This is an organization count, not 44 fully authored courses. Open standalone mini-course catalog →

    Curriculum title recovery: 18 main courses · 136 approved subcourse titles registered. Earlier reports said 135; the submitted outline enumerates 136. Lesson-level mapping and mini-course source review remain open.

    Download approved curriculum crosswalk · 136 titles

    COURSE 01

    Automotive Foundations & Vehicle Literacy

    September 23 curriculum · verified subcourse titles

    These seven names come from the user-approved updated outline. Linked prior materials are related partial resources, not evidence that the full subcourse is completed.

    Automobile History, Evolution & IndustryPlacement pending
    • Related existing activities require a verified exact placement; no link assigned yet.
    Vehicle Types, Identification & SpecificationsPlacement pending
    • Related existing activities require a verified exact placement; no link assigned yet.
    Automotive Systems OverviewPlacement pending
    • Related existing activities require a verified exact placement; no link assigned yet.
    Shop Safety, Environmental Practices & High-Voltage AwarenessPlacement pending
    • Related existing activities require a verified exact placement; no link assigned yet.
    Hand Tools, Shop Equipment & Precision MeasurementPlacement pending
    • Related existing activities require a verified exact placement; no link assigned yet.
    Fasteners, Materials & Service InformationPlacement pending
    • Related existing activities require a verified exact placement; no link assigned yet.
    Vehicle Inspection, Maintenance & Ownership BasicsPlacement pending
    • Related existing activities require a verified exact placement; no link assigned yet.

    0 mapped learning modules · 0 standalone activities

    Existing module groupings below predate this approved subcourse list. Their individual teaching activities are preserved; grouping reconciliation remains in progress.

    No learning modules from the 44-module catalog are assigned to this main course yet. Earlier course pages or cross-course resources may still exist below.

    Other existing material

    COURSE 02

    Electrical & Electronics Fundamentals

    September 23 curriculum · verified subcourse titles

    These seven names come from the user-approved updated outline. Linked prior materials are related partial resources, not evidence that the full subcourse is completed.

    Electricity, Energy & Electrical QuantitiesRelated earlier activities
    Series, Parallel & Combination CircuitsRelated earlier activities
    Ohm’s Law, Watt’s Law & Circuit AnalysisRelated earlier activities
    Passive & Electromechanical ComponentsRelated earlier activities
    Original planned mini-course order:
    1. Introduction to Electrical ComponentsPlanned sequence slot · no dedicated source recovered
    2. Resistors & Variable Resistance Original interactive page available
    3. Capacitors Original interactive page available
    4. Inductors & Coils Original interactive page available
    5. Transformers Original interactive page available
    6. Switches & Circuit Control Original interactive page available
    7. Relays & Solenoids Original interactive page available
    8. Fuses, Fusible Links & Circuit Breakers Original interactive page available
    9. Diodes & Circuit Protection Original interactive page available
    10. Component Identification & Testing Original interactive page available
    Semiconductors & Electronic SwitchingRelated earlier activities
    Original planned mini-course order:
    1. Semiconductor Fundamentals Original interactive page available
    2. Bipolar Junction Transistors (BJTs) Original interactive page available
    3. Field-Effect Transistors & MOSFETs Original interactive page available
    4. Electronic Switching & PWM Control Applications Original interactive page available
    5. Integrated Circuits & Automotive Electronic Control Modules Original interactive page available
    6. Digital Logic & Electronic Decision-Making Original interactive page available
    7. Signal Conditioning & Automotive Sensor Interfaces Original interactive page available
    8. Semiconductor Fault Diagnosis & Electronic Driver Testing Original interactive page available
    9. Power Electronics & Automotive Applications Original interactive page available
    10. Semiconductor Systems Integration & Final Capstone Original interactive page available
    Wiring Diagrams, Harnesses & ConnectorsRelated earlier activities
    Original planned mini-course order:
    1. Introduction to Automotive Wiring Diagrams Original interactive page available
    2. Automotive Wiring, Harnesses & Wire Identification Original interactive page available
    3. Automotive Connectors, Terminals & Splices Original interactive page available
    4. Wiring Diagram Interpretation & Circuit Tracing Original interactive page available
    5. Automotive Power Distribution & Ground Circuits Original interactive page available
    6. Automotive Wiring Faults & Intermittent Circuit Diagnosis Original interactive page available
    7. Automotive Wiring Repair & Harness Restoration Original interactive page available
    8. Advanced Wiring Diagrams & Diagnostic Applications Original interactive page available
    9. Automotive Schematic Symbols & Component Identification Original interactive page available
    10. Final Capstone Original interactive page available
    Test Instruments, Measurement & Circuit DiagnosisRelated earlier activities

    31 mapped learning modules · 37 standalone activities

    Existing module groupings below predate this approved subcourse list. Their individual teaching activities are preserved; grouping reconciliation remains in progress.

    Electrical Fundamentals 2 modules
    Passive & Electromechanical Components 8 modules
    Semiconductors & Electronic Switching 11 modules
    Wiring, Harnesses & Connectors 10 modules

    Other existing material

    COURSE 03

    Advanced Automotive Electrical Systems

    Approved September 23 subcourses

    Exact title registry. Linked earlier content is a related resource—not proof of a completed subcourse.

    03.1 · Batteries & Low-Voltage Power Distribution Related resources
    03.2 · Starting & Charging Systems Related resources
    03.3 · Lighting & Signal Systems Related resources
    03.4 · Body Electronics, Comfort & Power Accessories Related resources
    03.5 · Sensor, Actuator & Electronic Control Fundamentals Related resources
    03.6 · Advanced Electrical Testing & Intermittent Faults Related resources
    03.7 · Electrical System Service & Repair Related resources

    4 mapped learning modules · 16 standalone activities

    Lighting Systems 2 modules
    Lighting Diagnostic Labs 2 modules

    Other existing material

    COURSE 04

    Vehicle Networks, Modules & Software

    Approved September 23 subcourses

    Exact title registry. Linked earlier content is a related resource—not proof of a completed subcourse.

    04.1 · Network Architecture & Communication Basics Related resources
    04.2 · CAN, LIN & Automotive Ethernet Fundamentals Content match unverified
    • No verified matching learning module mapped yet; existing course and legacy resources remain available below.
    04.3 · Module Power, Ground, Inputs & Outputs Related resources
    04.4 · Network Waveforms, Termination & Physical-Layer Testing Content match unverified
    • No verified matching learning module mapped yet; existing course and legacy resources remain available below.
    04.5 · Scan-Tool Communication, Gateways & DTCs Content match unverified
    • No verified matching learning module mapped yet; existing course and legacy resources remain available below.
    04.6 · Configuration, Coding, Programming & Updates Content match unverified
    • No verified matching learning module mapped yet; existing course and legacy resources remain available below.
    04.7 · Cybersecurity, Access & Data Integrity Content match unverified
    • No verified matching learning module mapped yet; existing course and legacy resources remain available below.
    04.8 · Network Fault Diagnosis & Module Replacement Related resources

    1 subcourse with mapped Course Player content · 1 mapped learning item/resource

    Development status: outline only; no verified native course content mapped here.

    COURSE 05

    ADAS & Active Safety

    Open ADAS Program Hub → Follow the ADAS Learning Journey → Build a targeted ADAS skill plan → Practice ADAS OEM research → Troubleshoot a simulated calibration failure → Eight original subcourses, applied labs, assessments, and instructor resources in one learning path.

    Approved September 23 subcourses

    Exact title registry. Linked earlier content is a related resource—not proof of a completed subcourse.

    05.1 · ADAS Fundamentals, Capabilities & Limitations Original seven-part learning sequence available · not a hands-on credential
    05.2 · Cameras, Radar, Ultrasonic & Other Sensors Original 7-part sensor course available · educational only
    05.3 · ADAS Functions & System Interactions Original seven-part functions course available · conceptual only
    05.4 · Calibration Theory, Targets & Environmental Conditions Original 7-part calibration-theory course available · conceptual only
    05.5 · Static & Dynamic Calibration Workflows Original 7-part workflow course available · conceptual only
    05.6 · Alignment, Glass, Collision & Repair-Related Requirements Original seven-part repair course available · conceptual only
    05.7 · ADAS Diagnosis, Documentation & Verification Original seven-part diagnostic and verification course available · conceptual only
    05.8 · Safety, Service Information & Calibration Business Practices Original seven-part safety and shop-practice course available · conceptual only

    5 mapped learning entries · 1 previously preserved standalone + 4 original subcourses

    ADAS Fundamentals original course + earlier activity
    ADAS Sensors & Hardware original course
    ADAS Functions & System Interactions original course

    Other existing material

    COURSE 06

    Engine Mechanical Systems

    Approved September 23 subcourses

    Exact title registry. Linked earlier content is a related resource—not proof of a completed subcourse.

    06.1 · Engine Architecture, Design & Operating Cycles Related resources
    06.2 · Engine Block, Pistons, Rods & Crankshaft Content match unverified
    • No verified matching learning module mapped yet; existing course and legacy resources remain available below.
    06.3 · Cylinder Head, Valvetrain & Mechanical Timing Content match unverified
    • No verified matching learning module mapped yet; existing course and legacy resources remain available below.
    06.4 · Engine Airflow & Mechanical Breathing Content match unverified
    • No verified matching learning module mapped yet; existing course and legacy resources remain available below.
    06.5 · Lubrication & Engine Cooling Systems Content match unverified
    • No verified matching learning module mapped yet; existing course and legacy resources remain available below.
    06.6 · Engine Inspection, Measurement & Reassembly Content match unverified
    • No verified matching learning module mapped yet; existing course and legacy resources remain available below.
    06.7 · Mechanical Diagnostics, Service & Repair Related resources

    0 mapped learning modules · 0 standalone activities

    No learning modules from the 44-module catalog are assigned to this main course yet. Earlier course pages or cross-course resources may still exist below.

    Other existing material

    COURSE 07

    Engine Performance & Emissions

    Approved September 23 subcourses

    Exact title registry. Linked earlier content is a related resource—not proof of a completed subcourse.

    07.1 · Engine Management Fundamentals Related resources
    07.2 · Air Induction, Throttle Control & Boost Related resources
    07.3 · Fuel Delivery & Electronic Fuel Injection Related resources
    07.4 · Ignition, Combustion & Timing Control Related resources
    07.5 · Engine Sensors, Actuators & Control Strategies Related resources
    07.6 · Fuel Trim, Air–Fuel Feedback & Driveability Related resources
    07.7 · Emissions: EGR, EVAP, PCV & Catalysts Related resources
    07.8 · Applied Engine Performance Diagnostics Related resources

    5 mapped learning modules · 22 standalone activities

    Diagnostic Applications 5 modules

    Other existing material

    COURSE 08

    Integrated Vehicle Diagnostics

    Approved September 23 subcourses

    Exact title registry. Linked earlier content is a related resource—not proof of a completed subcourse.

    08.1 · Customer Complaint Intake, Verification & Test Planning Related resources
    08.2 · Service Information, Specifications & Diagnostic Trees Content match unverified
    • No verified matching learning module mapped yet; existing course and legacy resources remain available below.
    08.3 · Scan-Tool Data, Freeze Frame & Mode-Based Analysis Related resources
    08.4 · Electrical, Mechanical & Hydraulic Cross-System Testing Related resources
    08.5 · No-Start, Stall, Misfire & Performance Complaints Related resources
    08.6 · Noise, Vibration, Harshness & Intermittent Symptoms Content match unverified
    • No verified matching learning module mapped yet; existing course and legacy resources remain available below.
    08.7 · Diagnostic Evidence, Root Cause & Repair Verification Related resources
    08.8 · Integrated Case Studies & Practical Assessments Original module + related resource
    08.9 · Advanced Performance Systems & Integrated Case Studies Original module + related resource

    0 mapped learning modules · 0 standalone activities

    No learning modules from the 44-module catalog are assigned to this main course yet. Earlier course pages or cross-course resources may still exist below.

    Other existing material

    COURSE 09

    HVAC & Thermal Management

    Approved September 23 subcourses · 7

    Exact title registry, not a completed-subcourse claim. Related course resources below have not yet been mapped lesson-by-lesson.

    09.1 · Thermal Principles & Refrigerant Fundamentals Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part thermal explorer, four-state thermal-story lab, six-step evidence workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 09.1 in Course Player → · Direct module →

    Historical HVAC Unit 1 (Move the Heat) and Unit 2 (Follow the Refrigerant) are preserved as foundations. Vehicle-specific service information and applicable refrigerant rules control actual service procedures and targets.

    09.2 · Refrigeration Circuits & HVAC Components Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part refrigeration-circuit explorer, four-state evidence lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 09.2 in Course Player → · Direct module →

    Historical HVAC Unit 2 (Follow the Refrigerant) and HVAC circuit preview are preserved as foundations. Current service information controls vehicle-specific architecture, targets and procedures.

    09.3 · Heater Cores, Air Distribution & Blower Control Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part cabin-air explorer, four-state evidence lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 09.3 in Course Player → · Direct module →

    Historical HVAC Unit 4 (Blower Motor & Air Distribution) is preserved as a foundation. Current service information controls vehicle-specific coolant, actuator, blower and HVAC architecture.

    09.4 · Automatic Climate Control & Electronics Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part automatic-control explorer, four-state evidence lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 09.4 in Course Player → · Direct module →

    Historical HVAC Units 5–6 are preserved as foundations. Current service information controls vehicle-specific sensor ranges, network architecture, actuator procedures and calibrations.

    09.5 · System Performance Testing & Refrigerant Service Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part performance explorer, four-state evidence lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 09.5 in Course Player → · Direct module →

    Performance testing precedes refrigerant service. Current service information, approved equipment and applicable refrigerant-handling requirements control actual vehicle service.

    09.6 · Hybrid/EV Cabin Conditioning & Heat Pumps Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part cabin-thermal explorer, four-state evidence lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 09.6 in Course Player → · Direct module →

    Cross-links to Course 16 for deeper Hybrid/EV architecture. Current OEM service information controls vehicle-specific thermal architecture, HV procedures and refrigerant service.

    09.7 · Battery, Power Electronics & Drivetrain Thermal Management Mapped · interactive course

    Modern capstone module: seven lessons, eight-part thermal-system explorer, four-state evidence lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 09.7 in Course Player → · Direct module →

    Cross-links to Course 16 for deeper Hybrid/EV architecture. Current OEM service information controls vehicle-specific thermal architecture, HV procedures, limits and service methods.

    3 mapped learning modules · 8 standalone activities

    HVAC Fundamentals 2 modules

    Other existing material

    COURSE 10

    Manual Drivetrain, Axles & AWD

    Approved September 23 subcourses · 7

    Exact title registry. All seven approved subcourses now have an original first-pass interactive learning module mapped in the Course Player.

    10.1 · Power Transfer & Drivetrain Fundamentals Original interactive course mapped
    10.2 · Clutches & Manual Transmissions Original interactive course mapped
    10.3 · Transfer Cases & Four-Wheel-Drive Systems Original interactive course mapped
    10.4 · Differentials, Final Drives & Axles Original interactive course mapped
    10.5 · Driveshafts, CV Joints & Universal Joints Original interactive course mapped
    10.6 · AWD Control & Driveline Electronics Original interactive course mapped
    10.7 · Driveline Inspection, Diagnosis & Service Original interactive course mapped

    7 mapped learning modules · 0 standalone activities

    Development status: first-pass learning development complete across all seven registered subcourses.

    COURSE 11

    Automatic Transmissions & Transaxles

    Approved September 23 subcourses · 10

    Exact title registry. All 10 Course 11 subcourses now have original first-pass interactive modules. The earlier integrated hydraulic/electronic lessons and standalone labs remain preserved under 11.4 and 11.5 alongside the new v161 modules.

    11.1 · Transmission Types, Operation & Fundamentals Original interactive course mapped
    11.2 · Torque Converters & Lockup Clutches Original interactive course mapped
    11.3 · Planetary Gearsets, Power Flow & Apply Devices Original interactive course mapped
    11.4 · Hydraulic Circuits, Pumps & Valve Bodies Original interactive course + preserved legacy resources mapped
    11.5 · Electronic Controls, Solenoids & Shift Strategies Original interactive course + preserved legacy resources mapped
    11.6 · Fluid, Cooling & In-Vehicle Service Original interactive course mapped
    11.7 · Shift Quality, Ratio & Pressure Diagnostics Original interactive course + preserved worksheet mapped
    11.8 · Removal, Inspection, Overhaul & Reassembly Original interactive course mapped
    11.9 · Specific Transmission Families & Design Variations Original interactive course + preserved research worksheet mapped
    11.10 · Scan Tool Diagnostics Original interactive course mapped

    10 subcourses with mapped Course Player content · 14 mapped learning items/resources

    Hydraulic & Electronic Controls 1 legacy module collection

    Other existing material

    COURSE 12

    Chassis: Steering, Suspension, Wheels & Tires

    Approved September 23 subcourses · 7

    Exact title registry, not a completed-subcourse claim. Related course resources below have not yet been mapped lesson-by-lesson.

    12.1 · Chassis Geometry & Handling Fundamentals Original interactive course mapped
    12.2 · Suspension Designs, Springs & Dampers Original interactive course mapped

    The historical crosswalk still retains all 28 related 12.2 suspension lessons, labs and challenges; the modern module is the primary Course Player entry rather than a replacement for that work.

    12.3 · Steering Systems & Electric Power Steering Original interactive course mapped
    12.4 · Wheels, Tires & Tire Pressure Monitoring Original interactive course mapped

    No dedicated historical TPMS mini-course was recovered; adjacent chassis and ABS resources are preserved as supporting context without overstating coverage.

    12.5 · Wheel Alignment & Measurement Original interactive course mapped
    12.6 · Ride, Noise, Vibration & Handling Diagnosis Original interactive course mapped
    12.7 · Chassis Service & ADAS-Related Alignment Considerations Original interactive course mapped

    Course 12 is now first-pass complete at 7/7. ADAS calibration requirements remain vehicle- and procedure-specific; this module does not teach a universal post-alignment calibration rule.

    7 subcourses with mapped Course Player content · 7 mapped learning items/resources

    Other existing material

    COURSE 13

    Brake Systems

    Approved September 23 subcourses · 8

    Exact title registry, not a completed-subcourse claim. Related course resources below have not yet been mapped lesson-by-lesson.

    13.1 · Braking Principles, Dynamics & Safety Original interactive course mapped

    The existing 13.1 historical crosswalk retains 10 brake-fundamentals lessons/labs/challenges as supporting material rather than replacing or double-counting them.

    13.2 · Hydraulic Principles, Master Cylinders & Plumbing Original interactive course mapped

    The existing 13.2 historical crosswalk retains 10 hydraulic lessons/labs/challenges as supporting material rather than replacing or double-counting them.

    13.3 · Disc, Drum & Parking Brakes Original interactive course mapped

    The existing 13.3 historical crosswalk retains 30 disc/drum/parking lessons, labs and challenges as supporting material rather than replacing or double-counting them.

    13.4 · Power Assist & Brake Boosting Original interactive course mapped

    The historical crosswalk contains one direct power-assist lesson. It remains preserved as supporting material rather than being replaced or double-counted.

    13.5 · ABS, Stability Control & Traction Control Original interactive course mapped

    The existing 13.5 historical crosswalk retains 15 ABS/TCS/ESC lessons, labs and challenges as supporting material rather than replacing or double-counting them.

    13.6 · Electronic Parking Brakes & Brake-by-Wire Original interactive course mapped

    The existing Parking & Electronic Brakes pathway retains 7 lessons/lab/challenge resources as supporting material rather than replacing or double-counting them.

    13.7 · Hybrid/EV Regenerative Brake Integration Original interactive course mapped

    No dedicated historical 13.7 regenerative-braking mini-course is claimed. Preserved braking-physics and electronic-brake resources remain supporting context rather than being double-counted.

    13.8 · Brake Diagnosis, Service & Verification Original interactive course mapped

    The existing 13.8 historical crosswalk retains 12 diagnosis/service/verification lessons, labs and challenges as supporting material rather than replacing or double-counting them. This module completes Course 13's modern first-pass sequence.

    8 mapped learning modules · preserved historical Brake Systems resources · Course 13 first-pass complete

    Other existing material

    COURSE 14

    Alternative Fuels & Emerging Powertrains

    Approved September 23 subcourses · 6

    Exact title registry, not a completed-subcourse claim. Related course resources below have not yet been mapped lesson-by-lesson.

    14.1 · Fuel Properties, Energy & Storage Fundamentals Mapped · interactive course

    Modern first-pass module: seven lessons, fuel-property explorer, fictional energy/storage comparison lab, ordered safety/service workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 14.1 in Course Player → · Direct module →

    No dedicated historical 14.1 course was found. The archived Alternative Fuels outline is retained as design evidence, while existing 07.3, 07.4, 07.6 and 13.7 modules are linked only as supporting context.

    14.2 · Biofuels and Fuel Compatibility Mapped · interactive course

    Modern first-pass module: seven lessons, compatibility explorer, fictional blend/water/material/calibration lab, ordered diagnostic workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 14.2 in Course Player → · Direct module →

    No dedicated historical 14.2 lesson was found. The archived Alternative Fuels outline explicitly names ethanol blends/flex fuel, biodiesel/renewable diesel and fuel compatibility, so it is retained as design evidence only.

    14.3 · CNG/LPG Systems & Service Awareness Mapped · interactive course

    Modern first-pass module: seven lessons, gaseous-fuel explorer, fictional storage/shutoff/regulation/environment lab, ordered safety-first diagnostic workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 14.3 in Course Player → · Direct module →

    No completed historical 14.3 lesson was found. The archived Alternative Fuels outline names CNG/LPG as planned curriculum and is retained as design evidence only.

    14.4 · Hydrogen Combustion & Fuel-Cell Fundamentals Mapped · interactive course

    Modern first-pass module: seven lessons, hydrogen powertrain explorer, fictional supply/air/conversion/thermal/isolation lab, ordered safety-first diagnostic workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 14.4 in Course Player → · Direct module →

    No completed historical 14.4 module was found. The archived Alternative Fuels outline names “Gaseous Fuels and Hydrogen” and “Hydrogen Combustion and Fuel Cell Overview,” retained as design evidence only.

    14.5 · Emerging Powertrain Architectures Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part architecture explorer, fictional architecture-state lab, ordered diagnostic workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 14.5 in Course Player → · Direct module →

    No completed historical 14.5 module was found. Approved curriculum and historical sequence records are preserved as design evidence; existing hybrid/EV, drivetrain, thermal-management and hydrogen modules remain supporting context.

    14.6 · Safety, Regulations & Technology Comparisons Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part safety/technology explorer, fictional comparison lab, six-step safety/service workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 14.6 in Course Player → · Direct module →

    No completed historical 14.6 module was found. Approved curriculum/sequence records are preserved as design evidence; prior Alternative Fuels, Hybrid/EV and safety material remains supporting context.

    1 mapped learning module · Course 14 first-pass development underway

    Related existing material

    COURSE 15

    Diesel Engine Systems & Performance

    Approved September 23 subcourses · 7

    Exact title registry, not a completed-subcourse claim. Related course resources below have not yet been mapped lesson-by-lesson.

    15.1 · Diesel Fundamentals, Combustion & Construction Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part diesel fundamentals explorer, compression-ignition teaching lab, six-step diagnostic/service workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 15.1 in Course Player → · Direct module →

    No completed historical 15.1 module was found. Approved curriculum and original sequence records preserve the title/placement; existing engine architecture, combustion, fuel delivery, construction, starting and lubrication/cooling material remains supporting context.

    15.2 · Diesel Air Handling, Turbocharging & Charge Cooling Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part air-handling explorer, boost/charge-air teaching lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 15.2 in Course Player → · Direct module →

    No completed historical 15.2 module was found. Approved curriculum/sequence records and existing MAF/MAP/air-system resources are preserved as supporting context.

    15.3 · High-Pressure Fuel Systems & Injection Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part fuel-system explorer, rail-pressure/injection teaching lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 15.3 in Course Player → · Direct module →

    No completed historical 15.3 module was found. Approved curriculum/sequence records and existing fuel-pressure, injector, fuel-delivery, live-data and diagnostic resources are preserved as supporting context.

    15.4 · Electronic Engine Control & Diesel Sensors Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part control-system explorer, sensor→ECM→command teaching lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 15.4 in Course Player → · Direct module →

    No completed historical 15.4 module was found. Approved curriculum/sequence records and existing CKP/CMP, MAF/MAP, throttle/input, engine-management, scan-data and wiring resources are preserved as supporting context.

    15.5 · Diesel Aftertreatment & Emissions Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part aftertreatment explorer, emissions-evidence teaching lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 15.5 in Course Player → · Direct module →

    No completed historical 15.5 module was found. Approved curriculum/sequence records and existing emissions, scan-data, engine-control and diagnostic resources are preserved as supporting context.

    15.6 · Starting, Lubrication & Cooling Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part start/lubrication/cooling explorer, integrated evidence teaching lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 15.6 in Course Player → · Direct module →

    No completed historical 15.6 module was found. Approved curriculum/sequence records and existing hard-start, electrical, engine-mechanical, lubrication/cooling and scan-data resources are preserved as supporting context.

    15.7 · Diesel Performance Diagnosis & Service Mapped · interactive course

    Modern diesel capstone: seven lessons, eight-part diagnostic explorer, cross-system evidence lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 15.7 in Course Player → · Direct module →

    No completed historical 15.7 module was found. Existing no-start, hard-start, low-power, engine-performance and integrated-diagnostics resources are preserved as supporting evidence pathways.

    1 mapped learning module · 1 standalone interactive course

    Development status: 15.1–15.7 complete as modern first-pass modules; Course 15 is complete.

    COURSE 16

    Hybrid & Electric Vehicle Systems

    Approved September 23 subcourses · 8

    Exact title registry, not a completed-subcourse claim. Related course resources below have not yet been mapped lesson-by-lesson.

    16.1 · Hybrid & EV Architectures and Operating Modes Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part architecture/mode explorer, four-state operating-mode teaching lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 16.1 in Course Player → · Direct module →

    No completed historical 16.1 module was found. 14.5 topology, regenerative braking, power-electronics, drivetrain and thermal/HV resources are preserved as supporting foundations; 16.1 emphasizes operating modes and transitions rather than duplicating 14.5.

    16.2 · High-Voltage Safety & Safe Work Practices Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part HV safety explorer, four-state safe-state evidence lab, six-step ordered safe-work workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 16.2 in Course Player → · Direct module →

    No completed historical 16.2 module was found. Existing HV-awareness and hybrid/EV resources are preserved as supporting context. This module does not qualify or authorize HV work and does not replace OEM procedures.

    16.3 · Traction Batteries & Battery Management Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part battery-management explorer, four-state battery evidence lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 16.3 in Course Player → · Direct module →

    No completed historical 16.3 module was found; existing energy-storage, HV-safety, regenerative-braking and thermal resources are preserved as supporting context.

    16.4 · Motors, Inverters & Power Electronics Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part motor/inverter explorer, four-state conversion/torque teaching lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 16.4 in Course Player → · Direct module →

    No completed historical 16.4 module was found. Existing power-electronics, MOSFET, motor-driver, regen, drivetrain and Course 16 resources are preserved as supporting context.

    16.5 · Charging Systems, DC–DC Conversion & Regeneration Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part charging/energy-flow explorer, four-state source-permission-conversion-response teaching lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 16.5 in Course Player → · Direct module →

    No completed historical 16.5 module was found. Existing charging, regen, architecture, battery/BMS and inverter resources are preserved as supporting context.

    16.6 · Hybrid Power-Split & Electric Drive Units Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part power-split/drive-unit explorer, four-state member-relationship teaching lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 16.6 in Course Player → · Direct module →

    No completed historical 16.6 module was found. Existing 11.3 planetary power-flow, 14.5 architecture and 16.1–16.5 hybrid/EV resources are preserved as supporting context.

    16.7 · Energy, Thermal & Range Management Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part energy/thermal explorer, four-state energy-budget teaching lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 16.7 in Course Player → · Direct module →

    No completed historical 16.7 module was found. Existing HVAC thermal-control, energy-storage, battery/BMS, inverter, charging/regen and cooling resources are preserved as supporting context.

    16.8 · Hybrid/EV Testing, Diagnostics & Service Mapped · interactive course

    Modern diagnostic capstone: seven lessons, eight-part evidence explorer, four-state diagnostic teaching lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 16.8 in Course Player → · Direct module →

    No completed historical 16.8 module was found. Integrated diagnostics, scan data, service information, network/electrical testing and 16.1–16.7 resources are preserved as supporting context. Course 16 is complete.

    8 mapped learning modules · Course 18 at 8/8

    Development status: 18.1–18.8 mapped · Course 18 first-pass development complete.

    COURSE 17

    Body, Structure & Collision Fundamentals

    Approved September 23 subcourses · 7

    Exact title registry, not a completed-subcourse claim. Related course resources below have not yet been mapped lesson-by-lesson.

    17.1 · Body Styles, Platforms & Structural Design Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part structure explorer, four-state structural evidence lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 17.1 in Course Player → · Direct module →

    No completed historical 17.1 module was found. Foundations, chassis/alignment and ADAS collision/calibration resources are preserved as supporting context.

    17.2 · Materials, Joining Methods & Corrosion Protection Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part materials/joining explorer, four-state material-joint-protection lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 17.2 in Course Player → · Direct module →

    No completed historical 17.2 module was found. Fastener/material, wiring-corrosion, structural and collision resources are preserved as supporting context; vehicle-specific OEM repair information controls actual joining and corrosion-restoration procedures.

    17.3 · Exterior Panels, Closures, Glass & Sealing Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part body-interface explorer, four-state fit-seal-function lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 17.3 in Course Player → · Direct module →

    No completed historical 17.3 module was found. Vehicle identification, wiring/door-control, HVAC sealing, structural and ADAS camera/OEM-research resources are preserved as supporting context; OEM body/glass procedures control actual repair and downstream calibration requirements.

    17.4 · Structural Measurement & Damage Assessment Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part measurement explorer, four-state structural evidence lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 17.4 in Course Player → · Direct module →

    No completed historical 17.4 module was found. Structural design, alignment measurement, precision-measurement and ADAS resources are preserved as supporting context; current OEM body dimensions and procedures control real structural assessment.

    17.5 · Body Electrical, Restraints & Collision-Related Systems Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part systems explorer, four-state collision/electrical/restraint evidence lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 17.5 in Course Player → · Direct module →

    No completed historical 17.5 module was found. BCM/network, wiring, lighting/body-control, ADAS and post-collision resources are preserved as supporting context; current OEM SRS/collision procedures govern actual restraint service.

    17.6 · Repair Planning, Post-Repair Scanning & Calibration Links Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part repair-plan explorer, four-state planning/verification lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 17.6 in Course Player → · Direct module →

    No completed historical 17.6 module was found. OEM research, scan-data, structural/alignment, ADAS calibration and integrated-diagnostic resources are preserved as supporting context; vehicle-specific OEM procedures control actual repair and calibration requirements.

    17.7 · Appearance, Detailing & Surface Care Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part surface-care explorer, four-state surface/defect/process lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 17.7 in Course Player → · Direct module →

    No completed historical 17.7 module was found. Materials/corrosion, panels/glass/sealing and inspection resources are preserved as supporting context; product and OEM/refinish information governs actual surface-care and repair procedures.

    7 mapped learning modules · Course 17 complete at 7/7

    Development status: 17.1–17.7 mapped · Course 17 first-pass development complete.

    COURSE 18

    Service Operations, Careers & Automotive Business

    Approved September 23 subcourses · 8

    Exact title registry, not a completed-subcourse claim. Related course resources below have not yet been mapped lesson-by-lesson.

    18.1 · Technician Career Development & Professional Practice Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part career/professional-practice explorer, four-state career-evidence lab, six-step development workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 18.1 in Course Player → · Direct module →

    No completed historical 18.1 module was found. Existing safety, diagnostic-evidence, practical-assessment and technical-learning resources are preserved as supporting evidence sources; current certification/employer requirements must be verified with the applicable official source.

    18.2 · Service Writing, Estimates & Customer Communication Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part service-writing explorer, four-state complaint/estimate/communication lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 18.2 in Course Player → · Direct module →

    18.3 · Vehicle Inspection, Maintenance Plans & Quality Control Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part inspection/QC explorer, four-state evidence lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 18.3 in Course Player → · Direct module →

    No completed historical 18.3 module was found. 01.7 inspection/maintenance and system-specific measurement/service resources remain preserved as foundations; 18.3 emphasizes professional prioritization, planning and QC.

    Approved subcourse heading. Existing lessons and labs are available through the related course links below where shown; no particular lesson is certified as covering this whole subcourse yet.

    18.4 · Operations, Inventory & Warranty Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part operations explorer, four-state traceability lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 18.4 in Course Player → · Direct module →

    No completed historical 18.4 module was found. Warranty eligibility and retention requirements remain policy-dependent; 18.4 teaches traceability, inventory control and evidence habits.

    18.5 · Shop Workflow, Productivity & Documentation Mapped · interactive course

    Workflow-state control, planning, productivity, technician documentation, handoffs, exception control, QC and closeout.

    Direct module →

    No completed historical 18.5 module was found. Existing service-writing, QC, operations and integrated-diagnostic workflows are preserved as supporting context.

    18.6 · Service Management, Business Fundamentals & Ethics Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part management explorer, four-state business/ethics lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 18.6 in Course Player → · Direct module →

    18.7 · Used-Vehicle Evaluation & Reconditioning Mapped · interactive course

    Modern first-pass module: seven lessons, eight-part evaluation explorer, four-state condition/reconditioning lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 18.7 in Course Player → · Direct module →

    No completed historical 18.7 module was found. Archived condition-report/reconditioning concepts and existing inspection, diagnostics, appearance, workflow and QC resources are preserved as supporting foundations.

    18.8 · Instructor Resources, Parts Training Design and Assessment Mapped · interactive course

    Modern first-pass instructor module: seven lessons, eight-part design explorer, four-state activity/evidence/remediation lab, six-step workflow, four evidence-gated cases, randomized knowledge check, adaptive depth and instructor practical rubric.

    Open 18.8 in Course Player → · Direct module →

    No completed historical 18.8 module was found. Recovered classroom resources, assessment bridges, remediation structures and preserved educator activity concepts are integrated as foundations; protected instructor answer keys remain outside unrestricted student resources.

    0 mapped learning modules · 0 standalone activities

    No learning modules from the 44-module catalog are assigned to this main course yet. Earlier course pages or cross-course resources may still exist below.

    Development status: outline only; no verified native course content mapped here.

    All 136 enumerated September 23 approved subcourse titles are registered. Titles are not proof of completed content. The separately reported 20 planned mini-course titles still require verbatim source reconciliation. Historical course lesson progress is not synchronized with the newer browser-local dashboard. Self-reported practice is not hands-on competency.

    Recovered course · original historical source

    Earlier course

    Full interactive material from the earlier v89 course build. Its original lesson sequence and in-page feedback are retained, but Brakes/Suspension self-marked lesson completions have a limited same-origin dashboard bridge; other historical scores and lab results remain separate.

    ← All 18 main coursesOpen original course in a new tab ↗
    Preserved original course. This is the full historical application embedded in Autonatomy; its lessons are not yet converted into native mini-course records. Original v89 course records remain browser-local. Self-marked Brakes and Suspension lesson completion can be summarized in My Learning on this same site; other outcomes remain separate.

    If the embedded view is blocked by your browser, choose “Open original course in a new tab.” This historical course requires JavaScript. Complete activities in the original interface. In the same site, self-marked Brakes and Suspension lesson records can be summarized in My Learning; quizzes and labs are not automatically graded there.

    '.replace('<\\/script>','<\/script>');} root.querySelector('[data-studio-export-site]').addEventListener('click',()=>{if(!data.nodes.length){note('Create at least one main course before exporting a student site.');return;}download('autonatomy-my-custom-courses.html',publishHTML(),'text/html');note('Student-facing course site prepared. Download your JSON backup too.');}); render();window.addEventListener('storage',e=>{if(e.key===STORAGE&&e.newValue){try{const d=JSON.parse(e.newValue);if(validate(d)){data=d;selected=null;render();}}catch(x){}}}); })(); /* Autonatomy v13 — local draft-to-catalog publishing; no backend or cross-device sync. */ (function(){'use strict'; const DRAFT='autonatomy.course-studio.v12', LIVE='autonatomy.published-courses.v13'; const TYPES=['main','subcourse','unit','lesson','activity']; const LABEL={main:'Main course',subcourse:'Subcourse',unit:'Unit',lesson:'Lesson',activity:'Knowledge check'}; const NEXT={main:'subcourse',subcourse:'unit',unit:'lesson',lesson:'activity'}; const esc=s=>String(s??'').replace(/[&<>"']/g,c=>({'&':'&','<':'<','>':'>','"':'"',"'":'''}[c])); const read=k=>{try{return JSON.parse(localStorage.getItem(k)||'null');}catch(e){return null;}}; const get=(d,id)=>d?.nodes?.find(n=>n.id===id); const kids=(d,id)=>d.nodes.filter(n=>n.parentId===id); function valid(d){if(!d||!Array.isArray(d.nodes)||d.nodes.length>1500)return false; const ids=new Set();for(const n of d.nodes){if(!n||typeof n.id!=='string'||n.id.length>100||ids.has(n.id)||!TYPES.includes(n.type)||typeof n.title!=='string'||n.title.length>180||typeof n.summary!=='string'||n.summary.length>2500||typeof n.body!=='string'||n.body.length>25000||!Array.isArray(n.options)||n.options.length!==4||n.options.some(o=>typeof o!=='string'||o.length>350)||!Number.isInteger(n.correct)||n.correct<0||n.correct>3)return false;ids.add(n.id);} for(const n of d.nodes){if(n.parentId&&!get(d,n.parentId))return false;const p=get(d,n.parentId);if((p?NEXT[p.type]:'main')!==n.type)return false;let x=n,seen=new Set();while(x){if(seen.has(x.id))return false;seen.add(x.id);x=get(d,x.parentId);}} return true;} function published(){let d=read(LIVE);return valid(d)?d:{version:1,nodes:[]};} function codeId(id){return encodeURIComponent(id);} function isPreview(){return !!document.querySelector('main[data-page="studio"]');} function href(id){return isPreview()?'#/published/'+codeId(id):document.querySelector('[data-published-list]')?.dataset.publishedHref?.replace('{id}',codeId(id))||'published.html#'+codeId(id);} function renderCatalog(){const d=published();document.querySelectorAll('[data-published-list]').forEach(host=>{ const root=kids(d,null);host.innerHTML=root.length?'
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    Open course →
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    '+esc(current.title)+'

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    '+esc(current.body)+'
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    '; if(children.length)html+='

    Continue learning

    '+children.map(x=>''+esc(x.title)+' →').join('')+'
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    '+esc(n.title)+'

    '+esc(n.summary)+'

    '+esc(n.body)+'
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    ';html+='
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    '+t+'

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    ';}\n if(b.type==='ohm')return '

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    Current2.00 APower24.0 W
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    AUTONATOMYCourses

    Exported read-only student site. Student accounts, synced progress and grades are not included.

    ← 18-Course Directory · Mini-Courses · My Learning

    Existing material · Version 60 reconciliation

    Integrated existing coursework

    Reconciled legacy and standalone lesson sources.

    Earlier educator ideas: Playing Dominoes with Resistors and Needle in the Haystack (planned activity concepts) →

    Earlier student-facing printable materials: Browse 33 original worksheets, study guides, assessment practice and lab handouts →

    Additional recovered historical teaching sequence: Electrical Fundamentals Unit 1 · earlier pathway, effects demo and eight-question Challenger check →

    AUTONATOMY · LEGACY MATERIAL RECOVERY

    Teaching resources & earlier learning plans

    Twenty-two recovered visual assets, earlier planning documents, original activity ideas and the original product-catalog concept, organized without inventing new courses or implying that planned products are ready for sale.

    ← Library18-Course Directory
    RECOVERED LIBRARY ILLUSTRATIONS

    Visual teaching references

    Twenty-two original images are included in this ZIP; the links work without an external image host. Illustrations are drafts for teaching and should be reviewed for technical accuracy before use in a safety-critical procedure. They are not graded lab results.

    12-Volt Starting System Explained
    Advanced Automotive Electrical Systems

    12-Volt Starting System Explained

    Starting Systems

    Starting system overview · vehicle-specific systems differ

    Open full illustration ↗

    Automotive Starting System Diagram
    Advanced Automotive Electrical Systems

    Automotive Starting System Diagram

    Starting Systems

    Illustrative wiring schematic · not a service diagram

    Open full illustration ↗

    Find the Transistor
    Electrical & Electronics Fundamentals

    Find the Transistor

    Semiconductors & Electronic Switching

    Visual search challenge · illustrative, not graded

    Open full illustration ↗

    Coils, Inductors, Transformers & Solenoids
    Electrical & Electronics Fundamentals

    Coils, Inductors, Transformers & Solenoids

    Passive & Electromechanical Components

    Visual reference · review component labels before classroom use

    Open full illustration ↗

    1 kΩ Resistor Color Code
    Electrical & Electronics Fundamentals

    1 kΩ Resistor Color Code

    Passive & Electromechanical Components

    Visual reference · verify band interpretation

    Open full illustration ↗

    Electrical Components Reference Chart
    Electrical & Electronics Fundamentals

    Electrical Components Reference Chart

    Passive & Electromechanical Components

    Visual reference · check technical accuracy

    Open full illustration ↗

    Four-Panel Lighting Circuit Guide
    Advanced Automotive Electrical Systems

    Four-Panel Lighting Circuit Guide

    Lighting Systems

    Illustration · compare with service-specific diagrams

    Open full illustration ↗

    Multimeter and Battery Wiring
    Electrical & Electronics Fundamentals

    Multimeter and Battery Wiring

    Electrical Testing & Measurement

    Illustration · verify connections and meter range before lab

    Open full illustration ↗

    Multimeter Jack Labels
    Electrical & Electronics Fundamentals

    Multimeter Jack Labels

    Electrical Testing & Measurement

    Illustration · verify meter jack configuration before lab

    Open full illustration ↗

    INTEGRATION TRACKER

    What has been recovered—and what is still outstanding?

    Review the original files, course mappings, and known integration gaps before interpreting any course as finished.

    View source-tracked integration status →
    RECOVERED OLDER OUTLINE

    Enhanced curriculum development draft

    Preserved as an historical drafting reference, not a replacement for the latest user-approved September 23 structure. Some of its course titles differ from the approved curriculum.

    Open the historical enhanced draft ↗

    ORIGINAL DEVELOPMENT REFERENCES

    Earlier course and homepage drafts

    These three source documents were recovered as searchable plain-text archival copies. The two September 21 course outlines describe an earlier 13-course organization and do not replace the newer 18-course curriculum (136 enumerated subcourse titles). The homepage spec is a prior design reference, not a guarantee of current implementation.

    Previous 13-main-course catalog, September 21, 2026

    superseded working reference; NOT the September 23 approved 18-course outline

    Open archived text ↗

    Earlier unnumbered course catalog

    archived prior organization; NOT an authoritative newer curriculum

    Open archived text ↗

    Original homepage build specification

    older visual specification; compare against current design before implementation

    Open archived text ↗

    Curriculum reconciliation remains open: all 18 main-course titles are listed in the master directory, but the 136 enumerated September 23 subcourse titles are registered, while the original three ten-part electrical mini-course sequences are now mapped (29 source files matched; one introductory file unverified). No older titles were substituted for them.
    EARLIER AUTONATOMY PRODUCT CATALOG

    24 original product concepts

    Recovered from the earlier catalog prototype. These are planning records only: inclusion here does not mean that a physical lab kit, workbook, complete course, or purchased item has been produced or is available for sale. Prototype prices are intentionally omitted.

    Courses (6)

    1. Electrical Fundamentals: From Theory to Diagnosis
    2. Ohm’s Law Made Practical
    3. Automotive Systems & Components
    4. Heart of a Beast: Engine Fundamentals
    5. Automatic Transmission & Transaxle Fundamentals
    6. Engine Performance Fundamentals

    Workbooks (6)

    1. Multimeter Class & Lab Workbook
    2. Electrical Theory & Basic Circuits Workbook
    3. Ohm’s Law Hands-On Lab Pack
    4. Automatic Transmission Hydraulics Workbook
    5. 4L60E Research & Service Workbook
    6. Transmission Component Inventory & Reassembly Log

    Interactive (4)

    1. Enter-n-Action: Electrical Diagnostics
    2. Enter-n-Action: Engine Performance Diagnostics
    3. Interactive Transmission Powerflow Trainer
    4. Engine Components to Fall Asleep To

    Instructor resources (4)

    1. 10-Day Electrical Fundamentals Instructor Pack
    2. Automatic Transmission Instructor Pack
    3. Hands-On Assessment Station Pack
    4. Electrical Components Visual Teaching Library

    Lab kits (2)

    1. Circuit Fundamentals Table Kit
    2. Sensor & Semiconductor Discovery Kit

    Bundles (2)

    1. Complete Electrical Foundations Classroom Bundle
    2. Automatic Transmission Classroom Bundle
    LEARNING PATH CONCEPTS

    Three previously planned pathways

    These reflect the original Understand → Practice → Perform → Prove product concept. Some components are proposed or only partially developed; the paths are preserved as planning references, not an enrollment flow.

    Electrical Foundations

    1. Understand · Electrical Fundamentals course
    2. Practice · Multimeter Class & Lab Workbook
    3. Perform · Circuit Fundamentals Table Kit
    4. Prove · Electrical Diagnostic Scenarios

    Automatic Transmission

    1. Understand · Transmission Fundamentals course
    2. Practice · Hydraulics Workbook
    3. Perform · 4L60E Research & Service Workbook
    4. Prove · Hands-On Assessment Stations

    Engine Systems

    1. Understand · Automotive Systems & Components
    2. Explore · Heart of a Beast
    3. Practice · Engine Performance Fundamentals
    4. Prove · Engine Performance Diagnostic Scenarios
    Still being reconciled: the exact 20-planned-mini-course outline and actual lesson-level subcourse mapping, additional classroom documents and diagrams, historical course completion records, and end-to-end activity testing. See 18-Course Directory for the material already mapped to live navigation.
    V84 · RECOVERED HISTORICAL STUDENT RESOURCES

    Additional earlier worksheets, references & build guide

    Five previously authored student-facing resources were recovered from the historical document/PDF inventory and mapped to existing approved subcourses. They are preserved as resources, not counted as new lessons or new graded results. Instructor-copy midterms, answer keys and scoring guides discovered in the same audit remain protected outside the public ZIP.

    11.3 · Training reference

    Reverse engagement & power flow

    Existing reference tracing pressure establishment, reverse apply devices, converter phases and reverse power flow.

    Download original DOCX →
    11.3 · Student worksheet

    Planetary gear operation · all six combinations

    Two-page worksheet for input, held and output members plus direction, speed and torque relationships.

    Download original PDF →
    11.3 · Student reference

    4L60-E range reference chart

    Range, solenoid-state and holding/apply-device reference. Original source footnote definitions were not visible and still require review.

    Download original PDF →
    11.7 · Student lab worksheet

    Stall-speed testing

    Vehicle-specific research, instructor safety gate, measurements and diagnostic interpretation. Use only when current service information permits the test.

    Download original DOCX →
    02.1 · Low-current build guide

    8-AA battery pack

    Fused portable power-source build guide for low-current demonstrations; the original explicitly excludes starters, heaters, high-current motors and vehicle circuits.

    Download original DOCX →

    Download v84 document/PDF source audit → · Download v84 assessment reconciliation →

    V83 · RECOVERED HISTORICAL PRESENTATIONS

    Earlier student-facing classroom slide decks

    Four original PowerPoint files recovered and mapped to already-approved subcourses. The two Automotive Communication presentations are different revisions: the 12-slide original retains an Old vs Modern Vehicles comparison omitted in the 11-slide styled version. These are reference materials, not four new lessons, new quizzes, or verified grades. Technical accuracy and permission to redistribute any embedded media still require human review before public launch.

    Original slide deck · approved subcourse 04.1

    Automotive communication · complete 12-slide original

    Original 12-slide classroom overview, including the Old vs Modern Vehicles comparison omitted from styled revision.

    Network Architecture & Communication Basics

    Download original PowerPoint →
    Original slide deck · approved subcourse 04.1

    Automotive communication · styled 11-slide revision

    Original styled alternative; prior-version Old vs Modern Vehicles slide was omitted and is preserved separately.

    Network Architecture & Communication Basics

    Download original PowerPoint →
    Original slide deck · approved subcourse 02.3

    Ohm’s Law · original student slide deck

    Original student-facing 45-slide reference and practice deck; no verified historical scores.

    Ohm’s Law, Watt’s Law & Circuit Analysis

    Download original PowerPoint →
    Original slide deck · approved subcourse 10.2

    Manual transmissions · original overview slides

    Original 20-slide introductory overview; physical service remains instructor-supervised.

    Clutches & Manual Transmissions

    Download original PowerPoint →

    Instructor-only and third-party slide decks are inventoried but intentionally absent from this public ZIP. Download source-by-source slide audit (JSON) →

    LIBRARY · PREVIOUSLY AUTHORED PRINTABLE MATERIAL

    Student worksheets & lab handouts

    33 recovered original student-facing printables (26 DOCX and 7 PDF files), organized by the approved curriculum. Download to print, edit or adapt for classroom use. These resources do not add or replace lessons, and their instructional content has not yet undergone a full technical review.

    ← Recovered ResourcesBrowse the Curriculum

    Publishing note: This public student-resource collection deliberately excludes instructor answer keys and instructor-only guides. An earlier combined transmission midterm file is omitted because it includes the instructor answer key. Static pages cannot provide secure staff-only access. Have an instructor supervise all physical circuit-building and testing activities.

    Browse all 33 original student printables.

    AUTONATOMY · SOURCE-TRACKED DEVELOPMENT

    Past-work integration status

    Clear distinction between what is preserved, what is connected, and what still needs verification. This is an integration inventory, not a certificate that all 18 courses have been authored.

    Browse 18-course directoryRecovered resourcesDownload the source audit (JSON)
    Status: Integration is NOT complete. Open source-by-source audit → Items below overlap: an individual interactive file may also appear as a mini-course, lab, or historical topic. Do not add the figures together.
    Approved curriculum

    18 main courses · 136 subcourse headings

    Registered approved names—not 136 finished subcourses.

    Open curriculum →
    Interactive originals

    86 standalone files

    Each has a primary curriculum link, spanning 28 registered subcourses.

    Open standalones →
    Learning sequence

    44 organizational modules · 30 original sequence slots

    29 of the 30 original Electrical Components / Semiconductors / Wiring sequence slots have verified matching interactive files.

    Open mini-courses →
    Earlier authored course source

    115 Brakes/Suspension links · 40 other topic links

    Recovered lessons and labs in the unchanged historical source, not newly authored items.

    Open earlier systems →
    Recovered classroom resources

    33 student printables (26 DOCX + 7 PDF) · 22 teaching visuals

    Original student-facing files and illustrations; instructor keys not publicly packaged.

    Open student library →
    Earlier learning records

    Brakes, Suspension, Electrical Unit 1 & HVAC

    Read-only device-local summaries where available. Neither these marks nor historical challenge results are verified current grades.

    Open My Learning →

    Known outstanding work

    Historical file audit: The presentation inventory and this pass of high-confidence historical document/PDF candidates have individual inclusion or protection decisions; additional Library HTML/image/source variants and prior-chat artifacts still need bounded audits. Content matching: The original Introduction to Electrical Components sequence slot is now classified as planned-only because no dedicated source was recovered; it is intentionally not marked as authored. Records: Two student-facing historical assessment resources are now preserved, while instructor-only assessment material remains excluded from the public bundle and historical results are still separate from current grades. Testing: Route/simulator interaction and instructional review are incomplete.

    The machine-readable integration-status report records the evidence and completion criteria for each area.

    AUTONATOMY · EARLIER USER IDEAS

    Teaching activity ideas

    Original activity concepts recorded for future development—not completed games, instructional lessons, simulations, or graded assessments.

    ← Recovered ResourcesBrowse Curriculum
    02.4 · Passive & Electromechanical Components · PLANNED

    Playing Dominoes with Resistors

    An educational dominoes activity using resistors to teach component concepts. The original name and idea are preserved; game rules, resistor values, and assessments are not yet defined.

    Find the related subcourse →
    02.4 / 02.5 · Components & Semiconductors · PLANNED

    Needle in the Haystack

    Find a target electronic component—such as a resistor—hidden among transistors and other components in a Where’s Waldo-style visual search. Image layout, rules and scoring remain to be designed.

    Find the related subcourses →

    Source distinction: These are previously discussed concepts, not additional authored standalone learning files. The original “Find the Transistor” visual already included in Recovered Resources is a separate recovered illustration.

    V83 presentation audit: All 30 PowerPoint files returned by the accessible Library presentation inventory were checked from original bytes. Four existing student-facing decks are now linked under Recovered Resources; the other 26 are inventoried as duplicates, instructor/assessment review holds, rights review holds or adjacent non-Autonatomy sources. The 12-slide original communication deck retains a comparison missing from its 11-slide styled revision. Download file-by-file audit → Assessment reconciliation → This does not establish completion of all past-work integration.

    AUTONATOMY · AUDITABLE INTEGRATION

    Past-work source audit

    Original files, provenance, decisions and outstanding work. The source inventory is not a course-completion certificate.

    Integration status18-course directory

    Review historical website revisions (v41–v78) →

    Integration is not complete. The 18 main courses and 136 subcourse titles are a curriculum registry, not 136 finished subcourses. Historical lessons can overlap with the 86 standalone sources. This audit checks what is packaged—not whether every simulator, quiz, or teaching instruction works.

    18 / 136Main courses / registered subcourses
    86Preserved standalone interactive originals
    28Original student printables (23 DOCX + 5 PDF)
    22Recovered teaching illustrations
    38Earlier local master directories checked for file-path preservation

    Historical source audit: All relative file paths found in local master v41–v78 output directories also occur in this release. This does not mean that every overwritten old homepage revision is bundled. Separately saved Library versions v38/v39 have now been content-accounted through their preserved Exterior Lighting and Relay/BCM sources. Instructor-guide revisions discovered in the Library are registered as protected historical sources; 30 currently accessible Library PowerPoints have been individually classified in v83; unindexed earlier materials and content-level equivalence remain open.

    Student vs instructor distinction: The one new public printable is the previously authored 18-question Series Circuit Practice sheet. The older components identification worksheet is archived as a version, while its revised edition remains the public resource. Menu-enabled HVAC preview and instructor-reference materials are not student navigation options.

    Search bundled learning resources

    Use this list to verify whether an original file is in the downloadable package. Archived source materials are tracked separately; they are not recommended as current student lessons.

    TypeOriginal fileDecisionLink
    Standalone interactiveAutonatomy Advanced Electrical Lighting Unit 1standalones/Autonatomy_Advanced_Electrical_Lighting_Unit_1.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Advanced Electrical Lighting Unit 2standalones/Autonatomy_Advanced_Electrical_Lighting_Unit_2.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Advanced Electrical Lighting Unit 3standalones/Autonatomy_Advanced_Electrical_Lighting_Unit_3.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Advanced Electrical Lighting Unit 4standalones/Autonatomy_Advanced_Electrical_Lighting_Unit_4.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Advanced Electrical Lighting Unit 5standalones/Autonatomy_Advanced_Electrical_Lighting_Unit_5.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Advanced Electrical Lighting Unit 6standalones/Autonatomy_Advanced_Electrical_Lighting_Unit_6.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Advanced Electrical Lighting Unit 7standalones/Autonatomy_Advanced_Electrical_Lighting_Unit_7.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Advanced Electrical Lighting Unit 8standalones/Autonatomy_Advanced_Electrical_Lighting_Unit_8.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Automatic Headlamp Labstandalones/Autonatomy_Automatic_Headlamp_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy BCM Diagnostic Challengestandalones/Autonatomy_BCM_Diagnostic_Challenge.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Boost Control Labstandalones/Autonatomy_Boost_Control_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Brake Reverse Labstandalones/Autonatomy_Brake_Reverse_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy CKP CMP Labstandalones/Autonatomy_CKP_CMP_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Catalyst O2 Labstandalones/Autonatomy_Catalyst_O2_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Compression Leakdown Labstandalones/Autonatomy_Compression_Leakdown_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy EGR Diagnostics Labstandalones/Autonatomy_EGR_Diagnostics_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy EVAP Diagnostics Labstandalones/Autonatomy_EVAP_Diagnostics_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Electrical Fundamentals Unit 1standalones/Autonatomy_Electrical_Fundamentals_Unit_1.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Electrical Fundamentals Unit 2standalones/Autonatomy_Electrical_Fundamentals_Unit_2.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Electrical Fundamentals Unit 3standalones/Autonatomy_Electrical_Fundamentals_Unit_3.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Electrical Fundamentals Unit 4standalones/Autonatomy_Electrical_Fundamentals_Unit_4.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Electrical Fundamentals Unit 5standalones/Autonatomy_Electrical_Fundamentals_Unit_5.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Electrical Fundamentals Unit 6standalones/Autonatomy_Electrical_Fundamentals_Unit_6.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Electrical Fundamentals Unit 7standalones/Autonatomy_Electrical_Fundamentals_Unit_7.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Electrical Fundamentals Unit 8standalones/Autonatomy_Electrical_Fundamentals_Unit_8.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Engine Performance Capstone Labstandalones/Autonatomy_Engine_Performance_Capstone_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Exterior Lighting Challengestandalones/Autonatomy_Exterior_Lighting_Challenge.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Fuel Injector Labstandalones/Autonatomy_Fuel_Injector_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Fuel Pressure Labstandalones/Autonatomy_Fuel_Pressure_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Fuel Trim Labstandalones/Autonatomy_Fuel_Trim_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy HVAC Unit 1standalones/Autonatomy_HVAC_Unit_1.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy HVAC Unit 2standalones/Autonatomy_HVAC_Unit_2.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy HVAC Unit 3standalones/Autonatomy_HVAC_Unit_3.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy HVAC Unit 4standalones/Autonatomy_HVAC_Unit_4.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy HVAC Unit 5standalones/Autonatomy_HVAC_Unit_5.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy HVAC Unit 6standalones/Autonatomy_HVAC_Unit_6.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy HVAC Unit 7standalones/Autonatomy_HVAC_Unit_7.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy HVAC Unit 8standalones/Autonatomy_HVAC_Unit_8.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Hard Start Cold Hot Labstandalones/Autonatomy_Hard_Start_Cold_Hot_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Headlamp Parking Labstandalones/Autonatomy_Headlamp_Parking_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Hesitation Loss of Power Labstandalones/Autonatomy_Hesitation_Loss_of_Power_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Ignition Timing Labstandalones/Autonatomy_Ignition_Timing_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy MAF MAP Labstandalones/Autonatomy_MAF_MAP_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Misfire Diagnostics Labstandalones/Autonatomy_Misfire_Diagnostics_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy No Start Diagnostic Labstandalones/Autonatomy_No_Start_Diagnostic_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Oxygen Sensor Labstandalones/Autonatomy_Oxygen_Sensor_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy PCV Vacuum Labstandalones/Autonatomy_PCV_Vacuum_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy PWM Lighting Labstandalones/Autonatomy_PWM_Lighting_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Relay BCM Lighting Labstandalones/Autonatomy_Relay_BCM_Lighting_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Rough Idle Labstandalones/Autonatomy_Rough_Idle_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Starts Then Stalls Labstandalones/Autonatomy_Starts_Then_Stalls_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Throttle Control Labstandalones/Autonatomy_Throttle_Control_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Transmission Hydraulics Labstandalones/Autonatomy_Transmission_Hydraulics_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Turn Signal Labstandalones/Autonatomy_Turn_Signal_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy VVT Diagnostics Labstandalones/Autonatomy_VVT_Diagnostics_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveAutonatomy Valve Body Solenoid Labstandalones/Autonatomy_Valve_Body_Solenoid_Lab.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy adas fundamentalsstandalones/autonatomy_adas_fundamentals.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy bjt transistors workbenchstandalones/autonatomy_bjt_transistors_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy capacitors workbenchstandalones/autonatomy_capacitors_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy component identification testing workbenchstandalones/autonatomy_component_identification_testing_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy connectors terminals splices workbenchstandalones/autonatomy_connectors_terminals_splices_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy digital logic workbenchstandalones/autonatomy_digital_logic_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy diodes circuit protection workbenchstandalones/autonatomy_diodes_circuit_protection_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy electronic switching pwm workbenchstandalones/autonatomy_electronic_switching_pwm_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy fuses fusible links breakers workbenchstandalones/autonatomy_fuses_fusible_links_breakers_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy inductors coils workbenchstandalones/autonatomy_inductors_coils_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy integrated circuits ecu workbenchstandalones/autonatomy_integrated_circuits_ecu_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy mosfets workbenchstandalones/autonatomy_mosfets_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy power distribution ground workbenchstandalones/autonatomy_power_distribution_ground_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy power electronics workbenchstandalones/autonatomy_power_electronics_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy relays solenoids workbenchstandalones/autonatomy_relays_solenoids_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy resistors workbenchstandalones/autonatomy_resistors_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy schematic symbols component identification workbenchstandalones/autonatomy_schematic_symbols_component_identification_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy semiconductor capstonestandalones/autonatomy_semiconductor_capstone.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy semiconductor fault diagnosis workbenchstandalones/autonatomy_semiconductor_fault_diagnosis_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy semiconductor fundamentals workbenchstandalones/autonatomy_semiconductor_fundamentals_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy sensor interfaces workbenchstandalones/autonatomy_sensor_interfaces_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy switches circuit control workbenchstandalones/autonatomy_switches_circuit_control_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy transformers workbenchstandalones/autonatomy_transformers_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy wiring advanced diagnostics workbenchstandalones/autonatomy_wiring_advanced_diagnostics_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy wiring diagram interpretation tracing workbenchstandalones/autonatomy_wiring_diagram_interpretation_tracing_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy wiring diagrams intro workbenchstandalones/autonatomy_wiring_diagrams_intro_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy wiring faults intermittent diagnosis workbenchstandalones/autonatomy_wiring_faults_intermittent_diagnosis_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy wiring harness wire identification workbenchstandalones/autonatomy_wiring_harness_wire_identification_workbench.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy wiring harnesses connectors capstonestandalones/autonatomy_wiring_harnesses_connectors_capstone.htmlBundled / linked in directoryOpen original ↗
    Standalone interactiveautonatomy wiring repair harness restoration workbenchstandalones/autonatomy_wiring_repair_harness_restoration_workbench.htmlBundled / linked in directoryOpen original ↗
    Student printable4L60E Clutch Devices Worksheetresources/student-worksheets/4L60E_Clutch_Devices_Worksheet.pdfBundled / linked in libraryOpen original ↗
    Student printable4L60E ProDemand Task Sheetresources/student-worksheets/4L60E_ProDemand_Task_Sheet.docxBundled / linked in libraryOpen original ↗
    Student printable4L60E Special Tools Illustrated Worksheetresources/student-worksheets/4L60E_Special_Tools_Illustrated_Worksheet.pdfBundled / linked in libraryOpen original ↗
    Student printable4L60E Student Research Task Sheet Cleanedresources/student-worksheets/4L60E_Student_Research_Task_Sheet_Cleaned.docxBundled / linked in libraryOpen original ↗
    Student printable4L60E Transmission Inventory Workbookresources/student-worksheets/4L60E_Transmission_Inventory_Workbook.docxBundled / linked in libraryOpen original ↗
    Student printable4L60E Valve Body Installation Student Task Sheetresources/student-worksheets/4L60E_Valve_Body_Installation_Student_Task_Sheet.docxBundled / linked in libraryOpen original ↗
    Student printableAutomatic Transmission Hydraulics Student Handoutresources/student-worksheets/Automatic_Transmission_Hydraulics_Student_Handout.docxBundled / linked in libraryOpen original ↗
    Student printableAutomotive Lab Task Chartsresources/student-worksheets/Automotive_Lab_Task_Charts.docxBundled / linked in libraryOpen original ↗
    Student printableBasic-Circuits-Worksheetresources/student-worksheets/Basic-Circuits-Worksheet.pdfBundled / linked in libraryOpen original ↗
    Student printableChapter 35 Clutch Systems Guided Notes Worksheetresources/student-worksheets/Chapter_35_Clutch_Systems_Guided_Notes_Worksheet.docxBundled / linked in libraryOpen original ↗
    Student printableCircuit Lab Build and Measureresources/student-worksheets/Circuit_Lab_Build_and_Measure.docxBundled / linked in libraryOpen original ↗
    Student printableCircuit Lab Worksheetresources/student-worksheets/Circuit_Lab_Worksheet.docxBundled / linked in libraryOpen original ↗
    Student printableDay 1 Electrical Components Identification Worksheet Revisedresources/student-worksheets/Day_1_Electrical_Components_Identification_Worksheet_Revised.docxBundled / linked in libraryOpen original ↗
    Student printableElectrical-Theory-Worksheetresources/student-worksheets/Electrical-Theory-Worksheet.pdfBundled / linked in libraryOpen original ↗
    Student printableElectrical 1 Hands-On Midterm Student Packetresources/student-worksheets/Electrical_1_Hands-On_Midterm_Student_Packet.docxBundled / linked in libraryOpen original ↗
    Student printableElectrical Components Student Workbook Premiumresources/student-worksheets/Electrical_Components_Student_Workbook_Premium.docxBundled / linked in libraryOpen original ↗
    Student printableElectrical Electronic Components Study Guideresources/student-worksheets/Electrical_Electronic_Components_Study_Guide.docxBundled / linked in libraryOpen original ↗
    Student printableManual Transmission Overhaul Task Packetresources/student-worksheets/Manual_Transmission_Overhaul_Task_Packet.pdfBundled / linked in libraryOpen original ↗
    Student printableMazda CX9 Electrical 2 Task Sheetsresources/student-worksheets/Mazda_CX9_Electrical_2_Task_Sheets.docxBundled / linked in libraryOpen original ↗
    Student printableMidterm Review - Masterpieceresources/student-worksheets/Midterm Review - Masterpiece.docxBundled / linked in libraryOpen original ↗
    Student printableOhms Law Automotive Worksheetresources/student-worksheets/Ohms_Law_Automotive_Worksheet.docxBundled / linked in libraryOpen original ↗
    Student printableOhms Law Hands On Student Worksheetresources/student-worksheets/Ohms_Law_Hands_On_Student_Worksheet.docxBundled / linked in libraryOpen original ↗
    Student printableSeries Circuit Practice Front Backresources/student-worksheets/Series_Circuit_Practice_Front_Back.docxBundled / linked in libraryOpen original ↗
    Student printableSwitches Class Worksheet and Labsheet Print Masterresources/student-worksheets/Switches_Class_Worksheet_and_Labsheet_Print_Master.docxBundled / linked in libraryOpen original ↗
    Student printableSwitches and Control Circuits Student Worksheetresources/student-worksheets/Switches_and_Control_Circuits_Student_Worksheet.docxBundled / linked in libraryOpen original ↗
    Student printableTask Series Circuitresources/student-worksheets/Task_ Series Circuit.docxBundled / linked in libraryOpen original ↗
    Student printableValve Body Disassembly Component Checkoff Task Sheetresources/student-worksheets/Valve_Body_Disassembly_Component_Checkoff_Task_Sheet.docxBundled / linked in libraryOpen original ↗
    Student printableValve Body Disassembly Component Location Task Sheetresources/student-worksheets/Valve_Body_Disassembly_Component_Location_Task_Sheet.docxBundled / linked in libraryOpen original ↗
    Teaching illustration1-k-resistor-color-codeassets/teaching-resources/1-k-resistor-color-code.pngBundledOpen original ↗
    Teaching illustrationbattery-configurationsassets/teaching-resources/battery-configurations.pngBundledOpen original ↗
    Teaching illustrationbattery-series-parallelassets/teaching-resources/battery-series-parallel.pngBundledOpen original ↗
    Teaching illustrationbreadboard-circuit-testingassets/teaching-resources/breadboard-circuit-testing.pngBundledOpen original ↗
    Teaching illustrationcoils-inductors-transformers-solenoidsassets/teaching-resources/coils-inductors-transformers-solenoids.pngBundledOpen original ↗
    Teaching illustrationdiagnostic-graph-interfaceassets/teaching-resources/diagnostic-graph-interface.pngBundledOpen original ↗
    Teaching illustrationelectrical-components-reference-chartassets/teaching-resources/electrical-components-reference-chart.pngBundledOpen original ↗
    Teaching illustrationelectrical-fundamentals-training-labassets/teaching-resources/electrical-fundamentals-training-lab.pngBundledOpen original ↗
    Teaching illustrationelectrical-symbols-referenceassets/teaching-resources/electrical-symbols-reference.pngBundledOpen original ↗
    Teaching illustrationelectrical-training-lab-overviewassets/teaching-resources/electrical-training-lab-overview.pngBundledOpen original ↗
    Teaching illustrationexterior-lighting-simulator-boardassets/teaching-resources/exterior-lighting-simulator-board.pngBundledOpen original ↗
    Teaching illustrationfind-the-transistorassets/teaching-resources/find-the-transistor.pngBundledOpen original ↗
    Teaching illustrationfour-panel-lighting-circuit-guideassets/teaching-resources/four-panel-lighting-circuit-guide.pngBundledOpen original ↗
    Teaching illustrationmultimeter-and-battery-wiringassets/teaching-resources/multimeter-and-battery-wiring.pngBundledOpen original ↗
    Teaching illustrationmultimeter-jack-labelsassets/teaching-resources/multimeter-jack-labels.pngBundledOpen original ↗
    Teaching illustrationohms-law-circuit-labassets/teaching-resources/ohms-law-circuit-lab.pngBundledOpen original ↗
    Teaching illustrationrelay-to-mosfet-controlassets/teaching-resources/relay-to-mosfet-control.pngBundledOpen original ↗
    Teaching illustrationresistor-fundamentalsassets/teaching-resources/resistor-fundamentals.pngBundledOpen original ↗
    Teaching illustrationresistor-meter-measurementassets/teaching-resources/resistor-meter-measurement.pngBundledOpen original ↗
    Teaching illustrationstarting-system-diagramassets/teaching-resources/starting-system-diagram.pngBundledOpen original ↗
    Teaching illustrationstarting-system-explainedassets/teaching-resources/starting-system-explained.pngBundledOpen original ↗
    Teaching illustrationthrottle-control-training-boardassets/teaching-resources/throttle-control-training-board.pngBundledOpen original ↗
    Historical course pageindexhistorical/v71-electrical-unit-1/index.htmlBundled / historical pathwayOpen original ↗
    Historical course pagelesson-04historical/v71-electrical-unit-1/lesson-04.htmlBundled / historical pathwayOpen original ↗
    Historical course pageunit-checkhistorical/v71-electrical-unit-1/unit-check.htmlBundled / historical pathwayOpen original ↗
    Lab / simulationAutonatomy-Powertrain-Live-Data-Simulatorlabs/Autonatomy-Powertrain-Live-Data-Simulator.htmlBundled; interactive QA pendingOpen original ↗
    Lab / simulationautonatomy hvac course preview student modelabs/autonatomy_hvac_course_preview_student_mode.htmlBundled; interactive QA pendingOpen original ↗
    Archive onlyautonatomy hvac course preview with menusource/historical-variants/autonatomy_hvac_course_preview_with_menu.htmlPreserved, not a public learning recommendationSee downloadable source ledger
    Archive onlyAutonatomy Electrical Effects v71source/recovered-v71/Autonatomy_Electrical_Effects_v71.htmlPreserved, not a public learning recommendationSee downloadable source ledger
    Archive onlyAutonatomy Unit1 Challenge v71source/recovered-v71/Autonatomy_Unit1_Challenge_v71.htmlPreserved, not a public learning recommendationSee downloadable source ledger
    Archive onlyAutonatomy Unit1 Preview v71source/recovered-v71/Autonatomy_Unit1_Preview_v71.htmlPreserved, not a public learning recommendationSee downloadable source ledger
    Archive onlyAutonatomy Electrical Fundamentals Unit 2 pre QAsource/superseded-standalones/Autonatomy_Electrical_Fundamentals_Unit_2_pre_QA.htmlPreserved, not a public learning recommendationSee downloadable source ledger
    Archive onlyDay 1 Electrical Components Identification Worksheet originalsource/versioned-classroom/Day_1_Electrical_Components_Identification_Worksheet_original.docxPreserved, not a public learning recommendationSee downloadable source ledger

    Still open

    1. Compare older Library website versions and teaching-slide revisions with current lessons; do not assume a matching title is duplicate content.
    2. Continue individual review of alternate worksheet formats, instructor-only files and source-rights limitations.
    3. Reconcile older quiz/assessment records with a consistent reporting schema while keeping self-marked review separate from verified grades.
    4. Run full browser interaction tests and subject-matter safety review before a student-facing release.

    The machine-readable ledger, source hashes, detailed inclusion/exclusion decisions and local-version audit are in docs/V79_MASTER_SOURCE_LEDGER.json inside the download.

    AUTONATOMY · SOURCE PRESERVATION

    Historical website revision audit

    Earlier site versions, route continuity and changes needing individual content review.

    Source inventoryIntegration statusCourse directory

    This is a developer audit, not a completion certificate. An old page with a matching route may still contain earlier or different material. Historical copies are supplied in a separate developer-only archive, not in this public student website.

    38Previous local website index revisions preserved separately
    0Previously registered route IDs missing from the latest source
    75Current route IDs in the source before this audit page

    What this check establishes

    All 38 locally available master website homepages, Versions 41–78, have been saved byte-for-byte in a separate developer archive. Their earlier main[data-page] route identifiers are present in the current master. However, comparing the full HTML of same-named pages finds revisions that differ; we have not declared those revisions academically identical or fully merged.

    For the earlier original v40 source and the other standalone and historical files, see Source Audit. The developer archive is provided as a separate download alongside Version 80, not linked from this student package. Do not distribute old unfinished snapshots to students.

    Per-version audit

    “Changed page HTML” means a previous page differs in some markup from the corresponding current page. It does not mean that many entire lessons were lost, and it does not show whether differences are instructional, cosmetic, or technical.

    VersionRoutes in previous siteRetained route IDsPages with differing HTMLArchived source
    v41585818Original bytes preserved in developer ZIP
    v42595919Original bytes preserved in developer ZIP
    v43606018Original bytes preserved in developer ZIP
    v44606016Original bytes preserved in developer ZIP
    v45616113Original bytes preserved in developer ZIP
    v46626211Original bytes preserved in developer ZIP
    v47626210Original bytes preserved in developer ZIP
    v48636311Original bytes preserved in developer ZIP
    v4964648Original bytes preserved in developer ZIP
    v5064648Original bytes preserved in developer ZIP
    v5165657Original bytes preserved in developer ZIP
    v5265657Original bytes preserved in developer ZIP
    v5365657Original bytes preserved in developer ZIP
    v5465657Original bytes preserved in developer ZIP
    v5565657Original bytes preserved in developer ZIP
    v5665657Original bytes preserved in developer ZIP
    v5765657Original bytes preserved in developer ZIP
    v5867679Original bytes preserved in developer ZIP
    v59686810Original bytes preserved in developer ZIP
    v60696910Original bytes preserved in developer ZIP
    v61696910Original bytes preserved in developer ZIP
    v62707010Original bytes preserved in developer ZIP
    v63707010Original bytes preserved in developer ZIP
    v6470707Original bytes preserved in developer ZIP
    v6570707Original bytes preserved in developer ZIP
    v6670707Original bytes preserved in developer ZIP
    v6770707Original bytes preserved in developer ZIP
    v6870707Original bytes preserved in developer ZIP
    v6970707Original bytes preserved in developer ZIP
    v7070707Original bytes preserved in developer ZIP
    v7171717Original bytes preserved in developer ZIP
    v7272728Original bytes preserved in developer ZIP
    v7372728Original bytes preserved in developer ZIP
    v7473738Original bytes preserved in developer ZIP
    v7573736Original bytes preserved in developer ZIP
    v7673733Original bytes preserved in developer ZIP
    v7774742Original bytes preserved in developer ZIP
    v7874742Original bytes preserved in developer ZIP

    v81 audit status

    The known v38/v39 website additions are now accounted for through the preserved Exterior Lighting Diagnostic Challenge and Relay/BCM Lighting Lab standalone sources, so they do not need duplicate restoration. Remaining work is narrower: additional Library teaching-slide revisions still need individual source-rights/content comparison, historical per-browser result data cannot be reconstructed unless those browser records are recovered, live interaction testing still requires an unrestricted browser environment, and recovered materials still need subject-matter/safety review. See docs/V81_HISTORICAL_SOURCE_AUDIT.json, docs/V81_ASSESSMENT_RECONCILIATION.json, and docs/V81_QA.json.

    AUTONATOMY · STUDENT HOME

    Know where you are.
    Know what to do next.

    This is your primary learning starting point. Resume the Course Player, review evidence-based module progress, or open My Learning for preserved supporting records.

    MODERN MODULE EVIDENCE

    Checking this device…

    Evidence-complete modules use lesson, lab, workflow, case and knowledge-check records. This is browser-local learning evidence, not a credential.

    Review in Course Player →
    LEARNING RECORDS

    My Learning

    Review guided practice, standalone activity marks, historical records and other browser-local learning evidence.

    Open My Learning →
    CHOOSE YOUR DEPTH

    Technician

    Your Course Player learning-depth preference follows you into depth-aware modern modules.

    Learning Profile →
    Progress record: modern mapped modules use the current evidence model as the canonical learning record. Older browser-local records remain readable and preserved. Records remain on this browser/device, not a synced account or institution-grade transcript.
    AUTONATOMY · INSTRUCTOR CENTER · V190

    Teach, launch, assess,
    and document from one place.

    A practical front door to the instructor-facing tools already built across Autonatomy. This hub organizes existing capabilities; it does not invent a centralized gradebook or student roster.

    01 · LAUNCH

    Teach a mapped module

    Use the Course Player to select from 18 courses, 136 registered subcourses and 101 mapped subcourses.

    Open Course Player →
    02 · PRACTICE

    Labs & simulations

    Launch interactive labs, guided practice and the preserved standalone activity library.

    Open Lab Center →
    03 · ASSESS

    Assessment tools

    Open knowledge checks and existing practical-assessment resources. Modern module practical rubrics remain inside their modules.

    Assessment Center →
    04 · PREPARE

    Educator resources

    Find recovered instructor resources, teaching ideas and classroom-support material without searching the entire site.

    Educator Library →
    Recommended class workflow: choose the mapped module in Course Player → launch its practice/lab → use the module knowledge check and practical rubric → return to Instructor Center for the next resource. Student evidence remains browser-local unless separately documented by the instructor.
    Instructor boundary: this center organizes current teaching tools. Autonatomy does not yet provide a centralized multi-student roster, synced LMS gradebook or identity-verified transcript.
    AUTONATOMY · UNIFIED COURSE PLAYER

    Learn. Practice.
    Diagnose. Verify.

    Navigate all 18 courses and 136 registered subcourses from one learner shell. Modern Learning Engine modules, Enter-n-Action activities, preserved lessons, labs, and supporting resources remain connected to their curriculum location.

    Open playerView curriculum registryADAS Program Hub →ADAS Learning Journey →ADAS Skills & Remediation →ADAS OEM Research Lab →ADAS Calibration Failure Lab →
    18Main courses registered
    136Subcourses registered
    234Existing mapped learning entries
    0%Browser-local mapped-content progress

    Choose a learning entry

    Select a course, subcourse, and existing learning entry from the navigator.

    AUTONATOMY · FULL SITE DIRECTORY

    Every page. One working directory.

    Search all main-site views and physical HTML pages in this package. This route stays inside the Autonatomy shell so the Directory remains reachable even when sibling-file navigation is restricted.

    Link-recheck build: 79 main-site views plus mapped physical/resource destinations = 303 searchable directory entries. Preserved source snapshots are labeled separately.