Air Bag Restraint Warning Light

NOTE: Some vehicles have an INFLATABLE RESTRAINT warning light as opposed to an AIR BAG warning light.

When ignition switch is in RUN, BULB TEST, or START positions, battery voltage is applied to AIR BAG warning light. DERM/SDM illuminates this light by providing a ground to a lamp driver. Some vehicles are equipped with a Serial Data Controlled Warning Lamp (SDCWL). An SDCWL equipped vehicle utilizes a smart cluster which communicates via the serial data line, so in this case, DERM/SDM transmits a request to turn on AIR BAG warning light. When ignition is first turned on, AIR BAG warning light verifies light and DERM/SDM operation by flashing 7-9 times. Light is also used to warn driver of SIR electrical system faults which could potentially affect SIR system operation. AIR BAG warning light is the key to driver notification of SIR system faults.

In addition, the light provides diagnostic information by flashing Diagnostic Trouble Codes (DTCs) when the flash code diagnostic mode is entered on models without on-board diagnosis. INFLATABLE RESTRAINT indicator light notifies driver of SIR system faults.