Circuit Description
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The inflatable restraint IP module disable switch circuit consists of an IP module disable switch, IP module disable switch indicator, IP module disable switch signal circuit, and IP module suppression indicator control circuit. When the ignition is turned ON, the inflatable restraint sensing and diagnostic module (SDM) performs tests to diagnose critical malfunctions within itself. The SDM monitors the voltage levels at the IP module disable switch signal and the IP module suppression indicator control circuits of the SDM to determine the position of the IP module disable switch. If a malfunction is detected, a DTC will be stored.