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Home >> Saturn >> 2000 >> SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 22 (Air Bag Restraint Systems) >> Diagnostics >> Sir Diagnostic System Check >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2002 Saturn SL2, 2002 Saturn SL1, 2002 Saturn SL, 2002 Saturn SC2, and 2002 Saturn SC1. 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) to SDM connector terminal A1 (Yellow wire) from AIR BAG fuse in instrument panel fuse block, located behind center of instrument panel. AIR BAG warning light will flash 7 times while SDM checks SIR system for malfunctions. If no malfunctions are detected, AIR BAG warning light will go off.

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