3 Wire Led Trailer Light Wiring Diagram. 4 pin this is one of the better videos we have come across that shows how to wire the tail lights on a utility trailer with a 4 way trailer wire connection. 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. To install the optronics led trailer lights part stl22rb you will need to use the straight 3 wire pigtail part a45pb the red wire of a45pb will carry the turn signal function the black wire is for running lights and white is ground.
If you have a separate wiring system on your vehicle you can use part rm 732 which will take the separate wiring and convert it to a 2 wire system needed for the led lights and pigtail. If you are referring to installing the lights on your vehicle you would need to use a circuit tester part 40376 to test the functions of each wire. I used a diode to suppress the colapse of the electromagnet field when the relay is de energized. Also it must connect with things if included that use the aux power and back up lights too.
How to wire led trailer lights truckelectrics com.
Wiring the vehicle to the no and nc and relay. I used a diode to suppress the colapse of the electromagnet field when the relay is de energized. I have attached a helpful article that explains trailer wiring. An extra pin allows using another extra function. To install the optronics led trailer lights part stl22rb you will need to use the straight 3 wire pigtail part a45pb the red wire of a45pb will carry the turn signal function the black wire is for running lights and white is ground.