Was doing some cleaning and d-winterizing on the toy hauler today (home made Cargo conversion) and everything was fine until I was getting ready to back it into the shop and for some reason I turned the running lights on and the brakes on the trailer locked up. :question: I have had this trailer since last August and bought it new, in fact I ordered it custom built. I haven’t messed with any wiring for lights or brakes during the conversion. I have had it on one trip to Lake Murray for a ride and took it to my mothers home and used it to haul some stuff. One thing I haven’t done was drive with the lights on as I have driven with it during daylight hours only. Tonight after checking the truck wiring and the connector on the trailer what I did find was that I can disconnect the brakes out of the circuit (Blue Wire) and the brake controller shows "no connection" and as I start to roll forward I turn on the running lights, the brakes engage.:rollfinger: Tomorrow I’ll crawl under it and see whats afoul. It will be an easy fix. My wife says to take it back to the place I bought from, I don’t want to go down that path. :rm_thumbdown: