Transmission Code

SYMPTOM
P1687 - NO COMMUNICATION WITH THE MIC

WHEN MONITORED
Continuously with engine running.

SET CONDITION
The DTC sets in approximately 25 seconds if no BUS messages are received form the MIC.

POSSIBLE CAUSES
- Other bus problems present
- Intermittent wiring and connectors
- MIC - No communication
- PCM - No communication with the MIC