Circuit Description
WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
When ignition switch is turned on, AIR BAG warning light will flash 7 times while Sensing and Diagnostic Module (SDM) tests SIR system for malfunctions. If no malfunctions exist, SDM will turn AIR BAG warning light off.