Air Bag Warning Lamp

The AIR BAG warning lamp is represented by an icon graphic. Ignition voltage is applied to the AIR BAG warning lamp when the ignition switch is turned to the RUN position. The inflatable restraint Sensing and Diagnostic Module (SDM) controls the lamp by communicating with the instrument cluster over the Class 2 serial data circuit. The SIR system uses the AIR BAG warning lamp to do the following:
^ Verify proper SIR system operation by commanding the lamp OFF via Class 2 serial data after seven flashes. The instrument cluster flashes the lamp seven times when the ignition switch is first turned to the RUN position.
^ When lit, alerts the driver of electrical system malfunctions that could affect the operation of the SIR system. Certain malfunctions can result in:
- Deployment of the air bag(s) without a crash;
- Non-deployment of the air bag(s) in the event of a crash; or
- Deployment of the air bag(s) for conditions less severe than intended.

The AIR BAG warning lamp is the key to driver notification of SIR system malfunctions. Refer to the SIR diagnostic system check for proper lamp operation.