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 is turned on, Sensing and Diagnostic Module (SDM) performs tests to diagnose critical internal malfunctions. SDM monitors voltage levels at passenger-side air bag module disable switch signal and passenger-side air bag module suppression indicator control circuits to determine position of air bag passenger-side air bag module disable switch. If malfunction is detected, DTC will set.