Power Window Control

WARNING: This page is about a different car, the 2003 Mercury Sable and 2003 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.

The one-touch down (OTD) power window function allows the driver door window glass to completely lower with one button press. The driver window control switch is hardwired to the generic electronic module (GEM) and door window regulator and motor. When the GEM senses a one-touch down request from the driver window control switch, the GEM supplies a ground to the OTD relay coil. The OTD relay then provides power to the driver window regulator motor, lowering the window. The OTD feature will function when the ignition switch is in the RUN or ACC position. The OTD feature also operates while the ignition is OFF and the accessory delay time-out period has not expired.

The rear window defrost switch is hardwired to the GEM. When the switch is engaged and the ignition switch is in the RUN position, the GEM supplies a ground signal and activates the central junction box (CJB) rear window defrost relay. On sedan, this supplies power to and activates the relay centerbox I rear window defrost relay which operates the rear window defrost element. On wagon, this supplies power to the rear window defrost element and the indicator on the rear window defrost switch. The GEM will maintain the ground signal for 10 minutes or until the switch is selected OFF or the ignition switch is turned to OFF or ACC.

Power and ground are supplied for the driver front window operation by the GEM. All power and ground for passenger windows is supplied through the window control switches.