Trailer Electrical Connector Wiring Diagram

Trailer wiring diagrams 4 way systems 4 way flat molded connectors allow basic hookup for three lighting functions.

Trailer electrical connector wiring diagram.

Trailer wiring diagrams trailer wiring connectors. 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. We recommend these standards because they are pretty universal. Trailer electrical connectors come in a variety of shapes and sizes.

By law trailer lighting must be connected into the tow vehicle s wiring system to provide trailer running lights turn signals and brake lights. 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. 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. Below is the generic schematic of how the wiring goes.

The basic purpose remains the same whether your truck and trailer is using a 4 way 5 way 6 way or 7 way connector. The following trailer wiring diagram s and explanations are a cross between an electrical schematic and wiring on a trailer. Note that this type of 4 pin connector is less common that 4 pin flat connector. 4 pin trailer wiring diagram.

Above we have describes the main types of trailer wiring diagrams. 4 way tow vehicle side.