7 Way Connector Wiring Diagram. Trailer wiring and harness plugs are available in a variety of sizes and configurations. In the trailer wiring diagram and connector application chart below use the first 5 pins and ignore the rest.
When wiring a trailer connector it is best to wire by function as wire colors can vary. We have an excellent wiring diagram on our website i will provide you a link so you can look at it. The black sometimes red 12v and blue electric brakes wire may need to be reversed to suit the trailer.
See this wiring diagram for the correct plug and socket wiring for both round and flat connectors.
We are going to do our best to simplify that mainly with a good color coded diagram. 6 way systems round plug. Other wiring diagrams on this site are listed below. Download the guide below print it and keep it in your toolbox for future reference.