Operation CHARM: Car repair manuals for everyone.

BUS System Communication

N�� :





Test 1

Symptom:
BUS SYSTEM COMMUNICATION FAILURE

When Monitored and Set Condition:
BUS SYSTEM COMMUNICATION FAILURE

When Monitored: Ignition ON, every 7 ms.

Set Condition: When the CAB does not receive a message from the instrument cluster for 10 seconds.





Possible Causes