Pinpoint Test AQ: The Trailer Lamps Are Inoperative - Rear Lamps

NOTE: It is necessary for the vehicle exterior lighting to be operating correctly. Repair any concerns with the vehicle rear exterior lighting before the diagnosis of the Trailer Tow Module (TTM) and wiring is attempted.

Fig 1: Pinpoint Test AQ: Trailer Lamps Are Inoperative - Rear Lamps - Rear Lamps (AQ1-AQ2)

Courtesy of FORD MOTOR CO.

Fig 2: Pinpoint Test AQ: Trailer Lamps Are Inoperative - Rear Lamps - Rear Lamps (AQ3-AQ4)

Courtesy of FORD MOTOR CO.

Fig 3: Pinpoint Test AQ: Trailer Lamps Are Inoperative - Rear Lamps - Rear Lamps (AQ5)

Courtesy of FORD MOTOR CO.