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
First thing......
Use a voltmeter and 'check' each blade on vehicles 7 pin plug that they are correct and functional
Vehicle plug wiring correct.......
Then check that trailer wiring is correct
Use a jumper wire with male spade terminals crimped on each end
Plug one end into the 'trailer battery' position (11 O'clock when looking at end of trailer umbilical cord)
Plug other end into each of the other positions (except Ground---5 O'clock)
Use a voltmeter and 'check' each blade on vehicles 7 pin plug that they are correct and functional
Vehicle plug wiring correct.......
Then check that trailer wiring is correct
Use a jumper wire with male spade terminals crimped on each end
Plug one end into the 'trailer battery' position (11 O'clock when looking at end of trailer umbilical cord)
Plug other end into each of the other positions (except Ground---5 O'clock)
