PCM Status Failure

Tests 946 - 949:

SYMPTOM
PCM STATUS FAILURE

WHEN MONITORED
This condition is monitored at ignition ON and continuously during an ignition ON cycle.

SET CONDITION
This condition exists when a PCM STATUS bus message was not received from the PCM. Note: Failure maturity time is 20 seconds.

POSSIBLE CAUSES
- Intermittent wiring harness problem
- Wiring harness inspection
- SKIM/PCM defective