Trailer Light Wiring Diagram 4 Wire. Optronics led trailer light kits and tail lights. Trailer wiring diagram for 4 way, 5 way, 6 way and 7 way circuits for 5 wire to 4 wire trailer wiring diagram, image size 550 x 266 px, and to view image details please click the image.
The four wires control the turn signals, brake lights and taillights or running lights. Trailer light wiring diagram 4 wire source: 4 wire trailer wiring diagram for lights.
As the name implies, they use four wires to carry out the vital lighting functions.
Trailer light wiring diagram 4 wire source: Blue = electric brakes or hydraulic reverse disable (see blue wire notes below.) in the trailer wiring diagram and connector application chart below, use the first 5 pins, and ignore the rest. 4 wire trailer wiring diagram for lights. This vehicle is designed not just to travel 1 location to another but also to carry heavy loads.