Hey y'all. I'm having a problem with my newly installed trailer 7 pin plug. It seems that when the headlights are off, everything on the trailer works fine. When the headlights are on, the trailer goes nuts. If I step on the brakes with the headlights on, the entire trailer goes dark. But if the headlights are off, the brake lights work fine.
This is on a 2002 Damon intruder with the Workhorse chassis. The coach had a 4 wire pin, so I installed a 4 - 7 wire adapter and have been confused ever since. I don't think anything is backwards or things wouldn't work fine with my headlights off. Any experiences out there with this???