WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Passive Anti-Theft System - Wiring Diagram (With IA; 1 Of 2)
Courtesy of FORD MOTOR CO.
Fig 2: Passive Anti-Theft System - Wiring Diagram (With IA; 2 Of 2)