A horse trailer wiring diagram is a visual representation of the electrical system and wiring connections in a horse trailer. It shows how the various components of the trailer's electrical system are connected and provides a reference for troubleshooting and maintenance.. Wiring Diagram. Take a look at our wiring diagram below to educate yourself on how the different electrical connections work with your Logan Coach trailer. 7 - Way Vehicle Connector. Slant Load Horse Trailers Straight Load Horse Trailers Stock & Combo Trailers Living Quarter Trailers Motor Sports Trailers Enclosed Trailers. OTHER PAGES.
installing a new wiring harness, to get the trailer usable now.. Trailer Wiring Tips. The Diagram below shows the proper way to wire the connector to your trailer or vehicle. Note: The black (12V) and Blue (Electric Brakes) may be reversed to suit trailer. Horse Trailers may use the center pin for 12V hot lead, R.V. trailers use the center pin for electric brakes.