Symptom:
BCM MESSAGES NOT RECEIVED
When Monitored and Set Condition:
BCM MESSAGES NOT RECEIVED
When Monitored: Ignition On - Continuously
Set Condition: When the CAB detects the BCM is not connected or not functioning
correctly for 10 seconds.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE BCM
BODY CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, attempt to communicate with the Body Control Module.
Was the DRBIIIt able to I/D or communicate with the BCM?
All
Yes → Go To 2
No → Refer to the Communication category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
2 With the DRBIIIt, erase DTC’s.
Cycle the ignition switch from off to on and wait approximately 1 minute.
With the DRBIIIt, read DTC’s.
Did this DTC reset?
All
Yes → Replace the Body Control Module in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
No → Test Complete.
12
BRAKES (CAB)
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