Diesel Data: Automotive Repair

No Messages From PCM

Test 1 - 2:






SYMPTOM
NO MESSAGES FROM PCM

TEST NOTE
This symptom is diagnosed using the test NO MESSAGES FROM ABS.

WHEN MONITORED
With the ignition on.

SET CONDITION
The Instrument Cluster does not receive a PCM message for 20 seconds.

POSSIBLE CAUSES
- Bus message not received DTC present
- Instrument cluster
- Intermittent condition