Learning model—not a vehicle wiring diagram or electrical test procedure. The protocol examples, invented messages and fictional cases below teach communication principles only. They do not provide real frame identifiers, connectors, waveforms, test points, calibration instructions or vehicle-specific diagnostic limits. For actual work, use the current OEM procedure and appropriate supervision.
Fictional Vehicle Network · Network Family Explorer
Choose an architectural element to compare how CAN, LIN and Automotive Ethernet organize communication.
These eight blocks are teaching models, not a single vehicle topology or universally interchangeable test points.
Four Communication Models
Follow four fictional paths: CAN arbitration, a scheduled LIN response, switched Ethernet data, and a gateway bridge. The illustrations contain no real frame IDs or OEM timing values.
Illustrative information
Send a conceptual message
Sending here reveals a teaching trace. It does not connect to a vehicle.
Bus Behavior Lab · What Happens Next?
Choose a communication family, predict the next event, then inspect why. All identifiers, roles, and traffic below are fictional teaching examples.
Communication Network Decisions
Six fictional challenges. Distinguish normal protocol behavior from evidence that warrants vehicle-specific diagnosis.
04.2 · Online Knowledge Check
Answer all ten questions to receive feedback and an online knowledge score. This is not a live CAN/LIN/Ethernet test or practical credential.
Continue learning
Return to Course Player · View the 18-course directory
Next registered topic: 04.3 — Module Power, Ground, Inputs & Outputs.