Trailer Light Plug Wiring Diagram

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 light plug 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. Right turn signal stop light green left turn signal stop light yellow taillight license side marker brown and a ground white. Below is the generic schematic of how the wiring goes. 4 way flat molded connectors allow basic hookup for three lighting functions.

The four wires control the turn signals brake lights and taillights or running lights. They also provide a wire for a ground connection. Trailer wiring diagrams 4 way systems. Also it must connect with things if included that use the aux power and back up lights too.

This type of connector is normally found on utvs atvs and trailers that do not have their own braking system. Some trailer builders just connect this wire to the frame then connect the ground from all the other lights and accessories to the frame as well. 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 wiring diagrams trailer wiring connectors.

4 pin trailer wiring diagram. 4 way trailer connectors are. Above we have describes the main types of trailer wiring diagrams. The trailer wiring diagram shows this wire going to all the lights and brakes.