Transmission Code

Symptoms:
P1687-NO COMMUNICATION WITH THE MIC

When Monitored and Set Condition: P1687-NO COMMUNICATION WITH THE MIC
When monitored: Continuously with engine running.
Set condition: The code 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
TCM - BUS COMMUNICATION