Trailer Plug Wiring Diagram 4 Pin Youtube

Connecting the wrong color wires will result in mismatched taillight functions and confusion on the road.

Trailer plug wiring diagram 4 pin youtube. How to extend and or replace a trailer 4 pin connector duration. The black sometimes red 12v and blue electric brakes wire may need to be reversed to suit the trailer. Round 1 1 4 diameter metal connector allows 1 or 2 additional wiring and lighting functions such as back up lights auxiliary 12v power or electric brakes. 1 4 wire the first 4 pins white brown yellow green just like the 4 pin connector above.

If it is not no amount of wiring will get the lights to work. 6 way systems round plug. By law trailer lighting must be connected into the tow vehicle s wiring system to provide trailer running lights turn signals and brake lights. The basic purpose remains the same whether your truck and trailer is using a 4 way 5 way 6 way or 7 way connector.

Installing your 4 pin trailer wiring system is easy if you follow the correct procedure. 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. Check with a test light or vom. Traditional trailer with brakes use a 5 pin connector.

Trailer electrical connectors come in a variety of shapes and sizes. Use this 4 pin trailer wiring diagram to properly wire your 4 wire trailer plug. Make sure that all cables are electrically conductive. One way to check for faulty wires is to use a circuit tester.