3 Pin Trailer Light Wiring Diagram

Before connecting each wire slide an appropriately sized piece of heat shrink over each wire.

3 pin trailer light wiring diagram. 4 way trailer connectors are. Connect the wires from the lights to the new wiring. 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. Installing the 4 pin trailer wires.

The second diagram shows two brake lights two indicators two side lights and a fog light. Use this 4 pin trailer wiring diagram to properly wire your 4 wire trailer plug. The four wires control the turn signals brake lights and taillights or running lights. The circuits are for left and right brake lights and running lights.

Connect each colour wire on a light to the corresponding wire of the same colour on the trailer wiring. 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. The first diagram is a simple set up of two brake lights two indicators and two side lights.

Click on the image below to enlarge it. Slide the heat shrink over the join and apply heat to seal. The most common wire thickness for a trailer is 16 gauge but i bought thicker wiring for added durability. A custom wiring harness or t connector is a vehicle specific harness that plugs in without any spicing required and provides a standard connector output.

Buy a 4 pin wiring kit with wires at least twenty feet in length so it s long enough for your trailer. Custom wiring is the ideal solution for installing trailer light wiring on your vehicle. Three wires are for the trailer while the last wire is the ground wire. 4 pin trailer light wiring diagram.

The 4 pin connector only has the first 4 items listed. Repeat for second light. Green right turn signal right brake light. Brown tail lights side markers and running lights see brown wire notes below 3.

Yellow and green are for left and right turns and braking. As the name implies they use four wires to carry out the vital lighting functions. Yellow left turn signal left brake light 4. Trailer wiring kit and supplies.

4 pin connectors are the standard used for most trailers. An extra pin allows using another extra function. Here are two wiring diagrams for the 7 pin n type trailer electrical plug. Please see the trailer wiring diagram and connector application chart below.

Many trailers have three circuits. Click on the image below to enlarge it. They also provide a wire for a ground connection. 5 wire trailer wiring diagram.

4 way trailer connectors are typically used on small trailers such as boat snowmobile utility and other trailers that that do not use brakes.