Malfunction Lamp / Indicator: Description and Operation

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 ON or START positions. The inflatable restraint Sensing and Diagnostic and Seat Belt Pretensioner Module (SDM) controls the lamp by providing ground to the lamp driver circuit. The SIR system uses the AIR BAG warning lamp to do the following:
^ Verify the lamp operation by flashing the lamp seven times when the ignition switch is first turned to the ON 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 an air bag(s) or a pretensioner(s) without a crash;
- Non-deployment of an air bag(s) or a pretensioner(s) in the event of a crash; or
- Deployment of an air bag(s) or a pretensioner(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. Diagnostic System Check