7 Pin Tractor Trailer Plug Wiring Diagram. A colour coded trailer plug wiring guide to help you require your plugs and sockets. Trailer Wiring Diagrams showing you the typical wiring for most single axle trailer and tandem axle trailers.
Not sure which wires attach to what on your trailer connectors? That diagram is very clear on that. Various styles of connectors are available with four to seven pins to allow transfer of power for the lighting as well.
Connect cord wires to plug terminals.
That diagram is very clear on that.
Not sure which wires attach to what on your trailer connectors? You were looking for the wiring diagram/colors for the truck connectors instead of the trailer plug wiring. A colour coded trailer plug wiring guide to help you require your plugs and sockets.