Malfunction Lamp / Indicator: Description and Operation

The ignition switch applies ignition voltage to the AIR BAG warning lamp. The AIR BAG warning lamp receives power whenever the ignition switch is at the ON or the START positions. The Inflatable Restraint SDM controls the lamp by providing ground using a lamp driver. The SIR system uses the AIR BAG warning lamp in order to perform the following functions:
^ Verify proper SIR system operation by commanding the lamp OFF after seven flashes. The instrument cluster flashes the lamp seven times when the ignition switch is first turned ON.
^ When lit, alerts the driver of electrical system malfunctions that could affect the operation of the SIR system. Certain malfunctions can results 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 notifies the driver of SIR system malfunctions. For proper lamp operation, refer to SIR Diagnostic System Check.