Trailer Brake issues

perigaut wrote:
A few months ago, I had to slam on the breaks while towing a trailer (2016 Jayco Jayflight 27BHS) to avoid an accident. While everything checked out okay, my tow vehicle (2011 Dodge Ram 5.7L) now says that the trailer brakes are not connected when the 7-pin harness is in. The console says to check the wiring on the trailer. To make sure it wasn’t a problem with the tow vehicle, I hooked up to another trailer and had no problems. I checked wiring (simple layman physical inspection) and replaced the fuse; however, that only partially fixed the problem. Now when I initially hook up, it says trailer brake connected, but as soon as I drive off, my trailer brakes go on and off every minute while I drive. Other than being annoying, it seems that it would be dangerous to take a 50% chance the trailer brakes don’t work when I need them.
Any advice or thoughts?

Thanks.

Phil

The Emergency brake away switch is closed, and the trailer battery is nearly dead. reset the switch and you'll be OK. When you are connected your truck is charging the trailer battery, then the brakes come on. as soon as they come on they discharge the trailer battery again.
cycling like that is not good.