Originally Posted by laura colville
Fixed. Problem was with the vehicle. We have the tow package. Middle pin of the 7 pin hookup was bent so wire was not connected. Straightened pin and now we can back up boat trailer with surge brakes.
The frustrating part of this is the dealer where we had just bought the vehicle kept insisting was a problem with the trailer. Never wanted to take the time to look or troubleshoot. Both the marina and a hitch installer did troubleshoot the problem and both said was a problem with the vehicle.
Found another Chrysler Jeep dealer. They looked at it and in 5 minutes fixed it and on our way. This dealer has earned our service business!
Sorry you had me confused with the original post and the 5 PIN. I have never seen those PINs get bent except when people are jamming stuff in there. Your trailer/boat guy should have seen that right way if he was diagnosing it first but then again they likely did it.
On the Chrysler dealer, ya that is silly. Some dealers are good some are terrible. Stick with the one who serves you well.