Normal Operation
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
The RKE keypad receives voltage through circuit 1523 (DG). With the RKE keypad illumination activated, the driver door module (DDM) grounds circuit 66 (LB) to illuminate the RKE keypad.