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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 439 (Air Bag Restraint Systems) >> Diagnostic Tests >> Air Bag Warning Light Circuit Malfunction >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

Ignition switch supplies ignition voltage to Sensing and Diagnostic Module (SDM) connector terminal A1 via AIR BAG fuse, located in right end of instrument panel. When ignition is turned on, SDM commands Instrument Panel Cluster (IPC) to flash AIR BAG warning light flashes 7 times, during which time SDM checks integrity of SIR system. If no malfunctions are present, SDM will command Instrument Panel Cluster (IPC) to turn AIR BAG warning light off.