Courtesy Lamps: Notes
WARNING: This page is about a different car, the 2013 Lincoln MKX and 2013 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
The courtesy lamps subsystem consists of the door ajar switches (integrated into the door latches), the interior lamps, the cargo lamp, the puddle lamps, the scuff plate lamps, the FLM, and the BCM.