BCM Messages Not Received (Export)

Test 1 - 3:

SYMPTOM
BCM MESSAGES NOT RECEIVED (EXPORT ONLY)

WHEN MONITORED
Continuously with the ignition on.

SET CONDITION
The Thatcham Alarm Module does not receive any messages from the BCM for at least 5 seconds.

POSSIBLE CAUSES
- Intermittent condition
- BCM communication failure
- PCI bus circuit open
- Thatcham alarm module internal malfunction