Circuit Description
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
The seat module uses two control circuits to command the horizontal seat motor. The seat module can apply battery positive voltage or a ground to either control circuit. The seat module, based upon switch input, will change the polarity of the control circuits as necessary to achieve the desired seat position.