Normal Operation
WARNING: This page is about a different car, the 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The power door lock switch receives voltage from the battery junction box (BJB) on circuit 116 (RD/BK). The power door lock switch completes one of 2 circuits, circuit 117 (PK/BK) to lock the doors or circuit 118 (PK/OG) to unlock the doors, to send voltage to the power door lock actuators. The actuators operate in the lock or unlock direction based on the voltage received from the power door lock switch.