Pinpoint Test A: No Communication With The Trailer Brake Control (TBC) Module: Notes
WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Perform all PINPOINT TESTS without a trailer connected to the vehicle.