The power window system consists of the following components:

When the ignition switch is in the RUN or ACCY position, or retained accessory power (RAP) is enabled, battery positive voltage is supplied to the door lock/window switch. Ground for the switch is provided by a ground circuit connected to a ground stake. When the left front or right front window switch is pressed in the down position, a signal is sent to the window control module which supplies voltage motor driver window motor down circuit and ground is applied to the driver window motor up circuit causing the window to open. When the left front or right front window switch is pulled in the up position, a signal is sent to the express down window module which reverses the polarity of the window motor and the window closes.

The driver and passenger windows will travel to the fully down position when the left front or right front window switch is pressed. Pulling the same window switch to the up position will cancel the express down feature.

The door lock/window switch contains a rear window lockout switch which disconnects the battery positive voltage supply to the rear door window switches, disabling them. Normal rear window operation is still available from the master window switches.

The rear power window door switches receive battery voltage through the window lockout control circuit if the window lockout function is disabled. Ground for the rear passenger power window motors is supplied through normally closed up and down contacts of both the rear passenger power window switches and the door lock/window switch. When the either rear passenger power window switch is placed in the down position, the power window motor down control circuit is switched to 12 volts and is applied to the down side of the rear power window motor. Since the other side of the rear power motor is connected to ground through the normally closed up contacts of both the rear passenger and master control window switches, the window travels down. By placing the rear passenger power window switch in the up position, the polarity of the power window motor is reversed and the window travels up.