Pinpoint Test D: When the Ignition Key is Turned to the RUN Position, the TBC Module Display Does Light Up/Prove Out but the Trailer Brakes are Inoperative: Notes
WARNING: This page is about a different car, the 2009 Ford RV Cutaway, 2009 Ford Econoline, 2009 Ford E450 Super Duty, and 2009 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Carry out all pinpoint tests without a trailer connected to the vehicle.
NOTE:
Refer to appropriate WIRING DIAGRAMS article.