7pin wiring problem. Please help!
I have a new to me travel trailer. I am having a few issues with the wiring. Let me list those and then I'll list what I have done so far. 1. When headlights are on, running lights are not. 2. Whe...
Forum Discussion
By any negative I mean only the negative of the battery that is in the vehicle that is connected to your trailer. It definitely sounds like you need the help of a person with a meter that understands electrical circuits. Good luck.
