Testing - System Operation Check

WARNING: This page is about a different car, the 1994 GMC Safari and 1994 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

If system is functioning normally, air bag warning light flashes 7-9 times when ignition switch is turned to ON position, then goes out.

Four possible warning light conditions can indicate a system failure:

Light does not illuminate at all.
Light comes on while vehicle is driven.
Light flashes 7-9 times, and remains on.
Light does not flash but remains lit when ignition is turned on.

SIR system faults are usually due to a disconnected/loose electrical connector caused by previous service on vehicle. Always check Yellow SIR connector at base of steering column for loose or damaged wiring.