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Curriculum
Module 22advanced

Advanced CAN Bus Fault Diagnosis

Systematically isolate physical-layer and module faults that bring down part or all of a CAN network.

Lessons

10

Estimated time

200 min

Completed

00/10

Start lesson 01

By the end of this module

Isolate the module or segment causing a communication failure.

Lessons

10 total

  1. 01CAN Open-Circuit FaultsPredict network behaviour from where the open occurs.20 min
  2. 02CAN Short to GroundLocate a grounded network conductor safely.20 min
  3. 03CAN Short to Battery PositiveRecognise and isolate a bus short to supply.20 min
  4. 04CAN H-to-L ShortDiagnose conductors shorted together.20 min
  5. 05Missing or Extra TerminationUse termination evidence without blindly expecting one number on every vehicle.20 min
  6. 06Waveform Distortion and ReflectionsRecognise degraded signal quality and seek physical causes.20 min
  7. 07Finding the Module Pulling Down the BusDevelop an efficient isolation strategy.20 min
  8. 08Intermittent CAN FaultsCapture intermittent communication failures.20 min
  9. 09Module Power/Ground vs CAN FailureProve module infrastructure before module replacement.20 min
  10. 10Diagnostic Case: Network DownLocate the physical cause of a CAN network outage.20 min