BCM Messages Not Received

Test 1 - 2:

SYMPTOM
BCM MESSAGES NOT RECEIVED

WHEN MONITORED
With the ignition in run or run/start and vehicle not in shipping mode.

SET CONDITION
The module does not receive any messages from the BCM. Time to mature for the DDM, IPM and PDM is 5 seconds.

POSSIBLE CAUSES
- Attempt to communicate with the BCM
- Module