EATX Bus Communication Failure

Tests 1 - 2:

SYMPTOM
EATX BUS COMMUNICATION FAILURE

WHEN MONITORED
With the ignition in run, and the IOD fuse installed.

SET CONDITION
The BCM does not receive any messages from the Transmission Control Module (TCM) for at least 18 seconds.

POSSIBLE CAUSES
- Attempt to communicate with the TCM
- Body control module