The red and blue wire can be used for brake control or auxiliary. If your vehicle is not equipped with a working trailer wiring harness there are a number of different solutions to provide the perfect fit for your specific vehicle.

Wiring Diagram Recommendation For 4 Way Round Trailer
Vehicle trailer wiring diagram. Use on a small motorcycle trailer snowmobile trailer or utility trailer. Trailer wiring diagrams trailer wiring connectors various connectors are available from four to seven pins that allow for the transfer of power for the lighting as well as auxiliary functions such as an electric trailer brake controller backup lights or a 12v power supply for a winch or interior trailer lights. When shopping for trailer connectors remember that the male end is mounted on the vehicle side and the female on the trailer side. The trailer wiring diagrams listed below should help identify any wiring issues you may have with your trailer. Complete with a color coded trailer wiring diagram for each plug type this guide walks through various trailer wiring installation solution including custom wiring splice in wiring and replacement wiring. Trailer wiring diagram 4 pin trailer wiring diagram.
As a rule 5 way flat connectors are used for trailers that feature surge brakes or. 5 wire trailer wiring diagram. Trailer wiring diagram 6 pin. Extrapolate the same expansion for additional axles. This type of connector is normally found on utvs atvs and trailers that do not have their. These 2 wire diagrams fit the needs for most trailers.
The image above shows a single axle trailer and the next image shows wiring for tandem axles. 34 inch by 1 inch 6 way rectangle connectors right turn signal green left turn signal yellow taillight brown ground white. Typical trailer wiring diagram and schematic. Can also be used as custom wiring on trailers with 3 lightwire systems. Only the blue brake and white ground wires are different.