MHSMM Messages Not Received

Test 1 - 2:

SYMPTOM
MHSMM MESSAGES NOT RECEIVED

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

SET CONDITION
The BCM does not receive any messages from the Memory Heated
Seat/Mirror Module (MHSMM) for at least 18 seconds.

POSSIBLE CAUSES
- Attempt to communicate with the memory heated seat/mirror module
- Body control module