P1687

Tests 48 - 51:

SYMPTOM
P1687 - NO MIC BUS MESSAGE

WHEN MONITORED
Ignition key ON.

SET CONDITION
No messages received from the MIC (Instrument Cluster) for 20 seconds.

POSSIBLE CAUSES
- Wiring harness intermittent defect
- PCI Bus circuit open from PCM to MIC
- Instrument cluster defective