Principles of Operation

Glass, Frames and Mechanisms

Principles of Operation

There are 2 modes of operation for the power window system, manual and one-touch down.

Delayed Accessory Power

The Body Control Module (BCM) activates the accessory delay relay whenever the ignition switch is in the RUN or the ACC position, or when the ignition switch is changed from RUN or ACC to the OFF/LOCK position and the LH and RH front doors are closed. When energized, the accessory delay relay supplies voltage to the power window system.

The Body Control Module (BCM) will deactivate the delayed accessory feature when:

- the LH or RH front door is ajar and the ignition switch is in the OFF/LOCK or KEY-OUT position.
- ten minutes have elapsed since the ignition switch was changed from ACC or RUN to the OFF/LOCK position.

Manual Mode

When the LH front window control switch is pressed to the 1st detent, the LH front window moves down until one of the following conditions are met:

- The LH front window control switch is released from the 1st detent position.
- The LH front window control switch is pushed to the 2nd detent, causing the LF window to enter one-touch down mode.

One-Touch Down Mode

The one-touch down feature is activated when the LH window control switch for the LH window is pressed to the 2nd detent.

One-touch down mode is terminated when any of the following conditions are met:

- The LH window control switch is pulled to the UP position
- The LH window control switch is released (off position) and then pressed to the manual DOWN position (1st detent) or one-touch DOWN position (2nd detent)
- The accessory delay relay is inactive

The one-touch down feature is integral to the LH front window control switch.