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Symptom:
TCM MESSAGES NOT RECEIVED
When Monitored and Set Condition:
TCM MESSAGES NOT RECEIVED
When Monitored: With the ignition on.
Set Condition: The BCM does not receive any messages from the Transmission Control
Module (TCM) for at least 18 seconds. Note: If NGC, the TCM is internal to the PCM.
ATTEMPT TO COMMUNICATE WITH THE TCM
BODY CONTROL MODULE
TEST
1
Turn the ignition on.
With the DRB, enter Transmission.
Was the DRB able to I/D or communicate with the TCM?
Yes → Go To 2
→ Refer to the Communication category for the related symptom(s).
No
2
With the DRB, erase DTC's.
Turn the ignition on and wait approximately 1 minute.
With the DRB, read DTC's.
Did this DTC reset?
Yes → Replace the Body Control Module in accordance with the service
→ Test Complete.
No
POSSIBLE CAUSES
ACTION
Perform BODY VERIFICATION TEST - VER 1.
information.
Perform BODY VERIFICATION TEST - VER 1.
197
COMMUNICATION
APPLICABILITY
All
All
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