Test U: The Air Bag Warning Indicator Is Never/Always On

PINPOINT TEST U: THE AIR BAG WARNING INDICATOR IS NEVER/ALWAYS ON

U1-U4:

Normal Operation
The instrument cluster receives the supplemental restraint system (SRS) status from the restraints control module (RCM) over the high speed controller area network (CAN) communication bus. The instrument cluster illuminates the air bag warning indicator upon receipt of a message from the RCM.

DTC U0151 - sets if a missing message from the RCM occurs and the instrument cluster defaults the air bag warning indicator on.

Possible Causes
- RCM
- Instrument cluster