Fabulous Utility Trailer Light Wiring Diagram

I have attached two basic trailer light wiring diagrams of utility trailers for you to check out.

Utility trailer light wiring diagram. An extra pin allows using another extra function. 5 pin flat connector round style 5 pin connectors also exist trailers with capacity over 3000 total gross trailer weight should have brakes. Diagram 2 is the preferred method and it is more common.

Though trailer lighting systems are available in an array of configurations the most popular is the 4 way system. Green right turn signal right brake light. The rest you can ignore.

It is referred to as such as the system needs a mere four wires for the trailer tail lights turn signals and brake lights to illuminate. The wishbone harness has two running light wires one for each side of the trailer. 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.

5 wire trailer wiring diagram. Please see the trailer wiring diagram and connector application chart below. When you use your finger or even stick to the circuit along with your eyes it is easy to mistrace the circuit.

Diagram 1 shows a traditional wiring layout with jumper wires to provide running light functions for both sides of the trailer and diagram 2 shows a wishbone harness. The 4 pin connector only has the first 4 items listed.