WARNING: This page is about a different car, the 2015 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Luggage Compartment Wiring Diagram (1 of 5)
Courtesy of FORD MOTOR COMPANY
Fig 2: Luggage Compartment Wiring Diagram (2 of 5)
Courtesy of FORD MOTOR COMPANY
Fig 3: Luggage Compartment Wiring Diagram (3 of 5)
Courtesy of FORD MOTOR COMPANY
Fig 4: Luggage Compartment Wiring Diagram (4 of 5)
Courtesy of FORD MOTOR COMPANY
Fig 5: Luggage Compartment Wiring Diagram (5 of 5)