Trailer Electrical Connector Wiring Diagram

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.

Trailer electrical connector wiring diagram.

The basic purpose remains the same whether your truck and trailer is using a 4 way 5 way 6 way or 7 way connector. Trailer wiring diagrams 4 way systems 4 way flat molded connectors allow basic hookup for three lighting functions. 4 pin trailer wiring diagram. 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.

This type of connector is normally found on utvs atvs and trailers that do not have their own braking system. By law trailer lighting must be connected into the tow vehicle s wiring system to provide trailer running lights turn signals and brake lights. The following trailer wiring diagram s and explanations are a cross between an electrical schematic and wiring on a 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.

Note that this type of 4 pin connector is less common that 4 pin flat connector. We recommend these standards because they are pretty universal. Right turn signal stop light green left turn signal stop light yellow taillight license side marker brown and a ground white. Trailer wiring diagrams trailer wiring connectors.

Trailer electrical connectors come in a variety of shapes and sizes. 4 way tow vehicle side.