I have a 2013 F-150 and when I hook the boat trailer up, it says "trailer disconnected". Yet my running lights and brake lights all work fine. The only thing is the sumbitch dings like crazy everytime I go to back up because the back up camera 'sees' the boat and thinks I'm about to hit something. Now, yes, I can turn it off - but it's just a pain in the keester to do that everytime. I've checked all the fuses and everything is fine. Even rewired my trailer this spring and everything is good.
Any ideas as to what the problem is????