Test A: The Air Bag Warning Indicator Is Illuminated Continuously - RCM Disconnected or Inoperative, Loss of Battery Feed or Lo

PINPOINT TEST A: THE AIR BAG WARNING INDICATOR IS ILLUMINATED CONTINUOUSLY - RCM DISCONNECTED OR INOPERATIVE, LOSS OF BATTERY FEED OR LOSS OF SIGNAL GROUND

A1-A3:

A3-A5:

A5-A6:

Normal Operation
During normal operation, the air bag indicator will illuminate continuously for approximately 6 seconds and then go out after the ignition switch is placed in the ON or START position and no air bag faults exist. The air bag indicator will remain illuminated continuously after 3 cycles of a lamp fault code (LFC), if a fault exists. Be sure to cycle the ignition switch and look for an approximate 6-second indicator prove-out without LFCs.

The restraints control module (RCM) will communicate diagnostic trouble codes (DTCs) to the scan tool through the data link connector (DLC). If the scan tool displays NO COMMUNICATION when retrieving DTCs, refer to Information Bus (Module Communications Network) to diagnose the no communication concern.

Possible Causes
An air bag indicator that is illuminated continuously can be caused by:
- an open fuse.
- a faulted ignition circuit.
- an RCM disconnected from the vehicle harness.
- a loss of RCM signal ground.
- faulted wiring, terminals or connectors.
- the instrument cluster module.
- a faulted RCM.