4 Pin Flat Trailer Wiring Diagram. Cut the four-pin plug off of the trailer harness. This accounts for three of the colors in the wiring harness.
Going into the harness are a bunch of wires. It gets complicated when you have trailers with more cables, and in this case, you need an adapter to make the connections. The first step in wiring your trailer cables is to ground the white cable first.
Going into the harness are a bunch of wires.
Trailer plug wiring is standardized across all vehicles, no point trying to find vehicle specific info.
Not sure which wires attach to what on your trailer connectors? These plugs are typically flat, with the pins set in a row. Our trailer wiring diagram is a colour coded guide designed to help you wire your trailer plug or socket.