66North
New Member
Have a 2019 Expedition Limited 4WD with Towing Package and a 3200 dry weight NoBoundaries trailer that performs beautifully, yeah now the but. I receive occasional, repeated Trailer Wiring Fault errors. The connection is solid, a new connector installed on the trailer side, and testing done with another Ford Expedition prove it is not on the trailer side. Took it to the dealer and they installed a "programming update" - no change. Trying to figure out what to encourage the dealer to do next. The trailer lights stay on when this occurs, but I am concerned about losing braking assistance, otherwise, I would put up with the occasional warning bell. In case you haven't figured out I am a little old lady. Thanks for any ideas.