Symptom & Evidence Explorer
Inspect eight evidence categories and identify what each can establish—and what it cannot.
Four Diagnostic Journeys
Follow the reasoning from a safely verified symptom to a discriminating next test and an appropriate verification plan.
Complaint Investigation Lab
Four fictional work orders. Review essential evidence in any order, compare symptoms with known facts, then choose a safe, supported next diagnostic step. No simulated outcome is a repair authorization.
Symptom comparison bench
A crank/no-crank distinction changes the initial test plan. Select the fictional observation and inspect the appropriate evidence questions.
Select a behavior to see what should be verified next.
Complaint versus evidence
A stored DTC can describe a detected condition without identifying its root cause. Compare the fictional evidence bundles.
Choose a bundle to examine evidence quality.
Evidence board — inspect the essential facts
Choose an evidence card.
Choose the supported next step
This is a training case—not a completed real-world test, diagnosed root cause or verified vehicle repair.
Complaint-Based Diagnostic Challenges
Six fictional shop decisions. Use the recorded conditions and select a next step supported by the evidence.
08.5 · Knowledge Check
Answer all ten questions for a browser-local knowledge score. This is not an observed diagnostic or repair qualification.
Continue learning
Return to Course Player · Complaint Intake · 08.1 · Scan Data · 08.3 · Cross-System Testing · 08.4
The other eight preexisting 08.5 diagnostic activities are preserved in the Course Player alongside this new learning module.