PCM Messages Not Received (Export)

Tests 1 - 3:

SYMPTOM
PCM MESSAGES NOT RECEIVED (EXPORT ONLY)

WHEN MONITORED
Continuously with the ignition ON.

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

POSSIBLE CAUSES
- Intermittent condition
- PCM communication failure
- PCI bus circuit open
- RKE/thatcham alarm module - internal malfunction