Cluster Messages Mismatch

Tests 1 - 2:

Tests 3 - 5:

SYMPTOM
CLUSTER MESSAGE MISMATCH

WHEN MONITORED
After the MIC bulb test is completed, the ACM compares the Lamp Request by ACM, On or Off; and the Lamp on by MIC, On or Off, PCI Bus messages. Each message is transmitted one time per second or when a change in the lamp state occur.

SET CONDITION
If the Lamp Request by ACM, On or Off, and the Lamp on by MIC, On or Off; messages do not match, the code will set.

POSSIBLE CAUSES
- MIC diagnostic codes
- Cluster message mismatch
- Stored code or intermittent condition
- ACM, cluster message mismatch
- Active code present