An extra pin allows using another extra function. Use on a small motorcycle trailer snowmobile trailer or utility trailer.

Wiring Diagram For Trailer Light 6 Way Trailer Light Wiring
Trailer lights plug diagram. By law trailer lighting must be connected into the tow vehicles wiring system to provide trailer running lights turn signals and brake lights. 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. The trailer wiring diagram shows this wire going to all the lights and brakes. Trailer electrical connectors come in a variety of shapes and sizes. 6 way system rectangle plug. 5 wire trailer 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. Also it must connect with things if included that use the aux power and back up lights too. 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. 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. Trailer wiring diagrams trailer wiring connectors.
5 way trailer wiring diagram allows basic hookup of the trailer and allows using 3 main lighting functions and 1 extra function that depends on the vehicle. 34 inch by 1 inch 6 way rectangle connectors right turn signal green left turn signal yellow taillight brown ground white. The basic purpose remains the same whether your truck and trailer is using a 4 way 5 way 6 way or 7 way connector.