The power window system consists of the following components:

The power window system will operate anytime the Retained Accessory Power (RAP) system is active or when the ignition switch is in the ACCY or ON position.

The driver power window master switch can control the up and down functions of all the windows in the vehicle. The passenger door power window switches can only control the up and down functions of the individual window. The driver power window master switch also contains a lockout switch. The lockout switch controls the power window master switch lockout signal circuit. When the lockout switch is disabled, the power window master switch lockout signal circuit is complete and the passenger door power window switches function normally. When the lockout switch is enabled, the power window master switch lockout signal circuit is interrupted and the passenger door window switches cannot control the up and down functions of the power windows.

A permanent magnet motor operates each of the power side windows. Each motor raises or lowers the glass when the motor receives voltage. The direction the motor turns depends on the polarity of the supply voltage. The power window switches control the polarity of the supply voltage. A built-in circuit breaker protects each motor. The circuit breaker opens when the switch is depressed for a extended period of time under the following conditions:

The circuit breaker will reset automatically as the circuit breaker cools.

The normally closed contacts of the power window switches are connected to ground and the center pole is connected to the RAP supply voltage circuit. By placing the any power window switch in the down position, voltage is applied to the power window motor down circuit and to the power window motor. The other side of the power window motor is connected to ground through the normally closed contacts of the power window switch through the power window motor up circuit and drives the window down.

By placing the power window switch in the up position the polarity of the motor is reversed and the motor drives the window up.

The express down function is used for both front power windows. A power window control module is incorporated in the power window regulator motor. The module senses the operation of the front power window switches and controls voltage availability to the power window down circuits.

When either front power window switch is pressed for approximately one second in the down position, the power window control module receives a voltage signal on the power window down circuit. Through internal logic the power window control module then applies a reduced voltage to the power window motor continuously until the power window reaches the bottom of its travel. The express down function may also be canceled by activating an up or down switch. This signals the module and cancels the down operation.