Normal Operation
WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
When the smart junction box (SJB) receives a lock request from the door lock switches, the remote keyless entry (RKE) transmitter or the RKE keypad, the SJB energizes circuit 1763 (PK/BK) and all the door lock actuators lock the doors.