WARNING: This page is about a different car, the 2016 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Parking, Rear and License Lamps Wiring Diagram (1 of 4)
Courtesy of FORD MOTOR COMPANY
Fig 2: Parking, Rear and License Lamps Wiring Diagram (2 of 4)
Courtesy of FORD MOTOR COMPANY
Fig 3: Parking, Rear and License Lamps Wiring Diagram (3 of 4)
Courtesy of FORD MOTOR COMPANY
Fig 4: Parking, Rear and License Lamps Wiring Diagram (4 of 4)