P1687

Tests 1 - 3:

Test 4:

SYMPTOM
P1687 - NO CLUSTER BUS MESSAGE

WHEN MONITORED
Ignition key ON.

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

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