Principles of Operation

PRINCIPLES OF OPERATION

The LF window switch may be used to raise or lower all windows, or each individual side window may be controlled by the control switch located on each door panel.

The instrument cluster (IC) controls power to the power window system by activating or deactivating the accessory delay relay.

The one-touch down (OTD) feature will completely lower the driver side window when the master control is fully depressed, then released. The OTD feature is integrated into the LF window control switch.

There are 2 modes of LF window down operation: manual mode and auto mode. The manual mode is selected by pressing the LF window control switch to the first (DOWN) position. In manual mode, the window will move downward only while the switch is depressed. When the LF window control switch is pressed to the second DOWN position, it enters auto mode and the window will open completely with a momentary press of the switch.

When the OTD feature has been activated, it will stay on until one of the following conditions is met:
- The LF window control switch is pushed to the UP position
- The LF window control switch is released (OFF position) and then moved to the DOWN position (first detent) or OTD position (second detent)
- Seven seconds have elapsed since OTD was initiated

The accessory delay relay provides power for the operation of the power windows and the power roof opening panel. The accessory delay relay is active 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 LF and RF doors are closed.

The IC will deactivate the delayed accessory feature when one of the following conditions is met:
- The LF door is ajar and the ignition switch is in the OFF/LOCK or KEY-OUT position
- The RF 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

Window operation is enabled whenever the delayed accessory is active and the LF window control switch is pressed to the UP or DOWN position. The switch provides delayed accessory power to one side of the motor and ground to the other side.

Passenger windows may be raised or lowered using the LF window control switch or the appropriate passenger window control switch. Passenger window control switches receive power when the accessory delay relay is active and the LF remote lock-out switch is in the UNLOCK position. When in the LOCK-OUT position, the passenger windows are deactivated.