Warning Lamp Open/Shorted (Active)

SYMPTOM
WARNING LAMP OPEN/SHORTED (ACTIVE)

WHEN MONITORED
Continuously with the ignition ON.

SET CONDITION
ACM monitors CCD Bus for airbag warning lamp diagnostic message from instrument cluster. Message is transmitted every second, and upon change of lamp state, by cluster. Instrument cluster substitutes seat belt for airbag warning lamp if defective.

POSSIBLE CAUSES
- ACM defective, warning lamp circuit
- MIC driver status defective
- MIC bulb status defective
- Warning lamp circuit defective