Power Windows Description and Operation (-AXE)

Power Windows Description and Operation (-AXE)

Power Window System Components

The power window system consists of the following components:

* Driver door switch (DDS)

* Passenger door switch (PDS)

* Rear door power window switches (RPDS)

* Power window motors

Power Window System Controls

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 and passenger door lock and side window switches are integrated control module switch assemblies. The DDS and PDS switches are normally open, 3 position rocker type switches, with detents for up, down, and express down. The DDS rear passenger window switches are normally open, 2 position rocker type switches, with detents for up and down. The DDS rear window lockout switch is a push button type switch that provides an active signal to the DDS whenever pressed. Whenever the rear window lockout switch is pressed the DDS will activate or deactivate the rear window lockout function depending on the current state and illuminate the switch indicator whenever the function is active.

The PDS contains a single power window switch that is an integral component. Closing of this normally open, rocker switch provides the PDS with a request for the front passenger power window operation. The switch for the front passenger window has 3 positions UP, Down and Express Down. Each of these switch positions is a direct input to the PDS.

The rear passenger door power window switches are normally open, 2 position rocker type switches, with detents for up and down.

Driver Power Window Operation

The switch for the driver power window has 3 positions UP, Down and Express Down and it's position is a direct input into the DDS. Upon receiving a request for power window operation (switch activation), the DDS supplies voltage to the power window motor left front up or down circuit and grounds the opposite and the power window motor runs to move the window up or down.

Front Passenger Power Window Operation

The switch for the front passenger power window has 3 positions UP, Down and Express Down and it's position is a direct input into the PDS. Upon receiving a request for power window operation (switch activation), the PDS supplies voltage to the power window motor right front up or down circuit and grounds the opposite and the power window motor runs to drive the window up or down.

The front passenger power window can also be operated from the DDS. The front passenger window switch on the DDS has 3 positions UP, Down and Express Down and its position is a direct input into the DDS. Upon receiving a request for front passenger power window operation, the DDS transmits a command signal indicating the changed switch position. When the PDS receives this message, the PDS supplies voltage to the power window motor right front up or down circuit and grounds the opposite and the power window motor runs to move the window up or down.

Rear Passenger Power Window Operation

The rear passenger power windows can also be operated from the DDS. The rear passenger window switches on the DDS has 2 positions, UP and Down, and its position is a direct input into the DDS. Upon receiving a request for rear passenger power window operation, the DDS transmits a command signal indicating the changed switch position. When the RPDS receives this message, the RPDS supplies voltage to the respective power window motor up or down circuit and grounds the opposite and the power window motor runs to move the window up or down.

Rear Power Window Lockout Operation

The rear window lockout function is operated from the DDS through a command signal to the RPDS. When the RPDS receives an active lockout command, the rear door power window switches are disabled and the indicator lamp on the lockout switch will illuminate. Once disabled, the lockout feature will remain in effect until the ignition switch is cycled or the driver enables the rear windows by pressing the rear window lockout switch again.