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Circuit Description

WARNING: This page is about a different car, the 2000 Buick Park Avenue. However, it is still accessible from the selected car via links, so may be relevant.

When ignition switch is turned to RUN position, IGNITION POSITIVE VOLTAGE is applied from SDM fuse to SDM at IGNITION POSITIVE VOLTAGE input terminal No. A1. SDM responds by flashing AIR BAG warning light 7 times then turning off while performing tests on SIR system. If SDM detects no malfunctions, SDM commands Instrument Panel Cluster (IPC) to turn off AIR BAG warning light. If malfunction is detected, SDM commands IPC to turn AIR BAG warning light on.

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