Questions and Answers
Rewiring A Horse Trailer
Q. I rewired a horse trailer. The turn lights work and the brake lights work when the lights are NOT on. When the lights are on then when I push the brake in turns off one of the lights! Is there anything to do?
Thanks,
DavidA. I wrote an article entitled How To Wire Your Car For Trailer Lights that should help you.
I would give you a wiring diagram for the vehicle you have, but I don't know what it is. Also I don't know what the wiring is for the trailer.
Additional Information provided courtesy of AllDATA

