Transmission Code

Test 1-2:

Test 3-6:

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
- MIC - NO COMMUNICATION
- POWERTRAIN CONTROL MODULE
- INTERMITTENT WIRING AND CONNECTORS