FCM - PCM Messages Not Received
Test 1 - 2:
Test 3:
SYMPTOM
FCM - PCM MESSAGES NOT RECEIVED
WHEN MONITORED
Withe the ignition on.
SET CONDITION
The FCM does not receive any messages from the PCM for at least 5 seconds.
POSSIBLE CAUSE
- PCM messages not received
- Attempt to communicate with the PCM
- PCI bus circuit open
- Powertrain control module