Adams Horse Trailer Wiring Diagram. The trailer wiring diagram above give one flavor for routing direction - starting at the tongue connector, then wrapping around the trailer. Browse Horse Trailers, or place a FREE ad today on horseclicks.com.

The red and blue wire can be used for brake control or auxiliary.
The wiring on the truck was so messed up I gave up on it and took it to a rv.
If you cant find any issues with the truck check the wiring on the trailer at the plug connector, If it is recently converted. Six wire plugs: Horse, stock or utility trailers: White = Ground - GD Yellow = Left turn/Brake -LT Green = Right turn Brake -RT Brown = Tail and use a volt meter to work out which light is connected to which pin on Ford Ranger trailer plug. Not all trailers have reverse lights, so. i have a friend with a horse trailer. long story short,some cut off the plug to trailer and none of the wires are marked.it had a six pin but went.i can figure it out with a diagram or something to show what wire is for what. thanks to all who may help.