Why do TT brakes work on Tacoma but not F150?
Long story short, I bought a TH to pull with my Tacoma. Everything works fine, but I wanted a bigger truck to pull it. So, got a new F150 and the everything works but the brakes. When I manually activ...
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This is a long shot since I don't have a Ford, but the built in controller on my Chevy started doing what you describe after 5 years of working perfectly. I noticed that the V-shaped male on the truck connector was compressed. I spred the connector blades and also cleanup all the contacts in the trailer connector using an emery board. The brakes worked. Just as a side note, if every other function works on the trailer the same as on the other truck, I believe that only leaves two possible connections, the center and one of the outside (usually the one at the 5 O'clock position) that would be the electric brake connection.
