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Home >> Buick >> 2000 >> Regal V6-3.8L SC VIN 1 >> Repair and Diagnosis >> Accessories and Optional Equipment >> Radio, Stereo, and Compact Disc >> Description and Operation >> Steering Wheel Controls >> Circuit Description >> Supplemental Inflatable Restraint (SIR) Coil Assembly

Supplemental Inflatable Restraint (SIR) Coil Assembly

The SIR coil assembly contains 4 wires used by the steering wheel controls. This allows voltage to be applied by the steering wheel switches to the radio while the steering wheel is being turned.

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