Driver and Passenger Power Seat Operation
WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
The seat adjuster motors are controlled by the seat adjuster switches. Battery positive voltage and ground is supplied to the switch assemblies. All of the switches are closed to ground when in an inactive state. When an adjuster switch is pressed one of the adjuster motor supply circuits is supplied battery positive voltage, and ground is provided through the supply circuit to the inactive switch. The adjuster motors are reversible and the direction of the adjuster motor rotation is determined by which of the supply circuits is closed to battery positive voltage and which remains grounded.