Custom wiring is the ideal solution for installing trailer light wiring on your vehicle. Standard color code for wiring simple 4 wire trailer lighting question.
Trailer Wiring Diagram And Installation Help Towing 101
Standard 4 wire trailer wiring. This 8 foot 4 wire trailer wiring extension cable was just what the doctor ordered. You must check the trailer manual to see if the wiring is correct but normally the white wire is called the ground wire while the brown wire is used for tail lights. Yellow and green are for left and right turns and braking. It connected perfectly to my motorhomes connector and to the connector on the front of my jeep liberty to allow me to have lighting on the jeep while towing it behind the motorhome. By law trailer lighting must be connected into the tow vehicles wiring system to provide trailer running lights turn signals and brake lights. Start by cutting the white wire and attaching it to the trailer frame.
Installing the 4 pin trailer wires. 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 such as a 4 way flat. Some vehicles send only one signal per wire. Buy a 4 pin wiring kit with wires at least twenty feet in length so its long enough for your trailer. Use on a small motorcycle trailer snowmobile trailer or utility trailer. 1 4 wire the first 4 pins white brown yellow green just like the 4 pin connector above.
This vehicle to trailer wiring harness creates a standard trailer wiring connection by plugging into vehicle harness and tail light assembly and then routing the 4 way harness to the rear end of a vehicle. The most common wire thickness for a trailer is 16 gauge but i bought thicker wiring for added durability. Standard 4 pole wiring harness for use with vehicles that have adequate power and standard wiring system these simply connect into existing wires on the vehicle and have a 4 pole flat connector to attach a trailer. The basic purpose remains the same whether your truck and trailer is using a 4 way 5 way 6 way or 7 way connector. If you own an older vehicle chances are it will have neither trailer package factory installed nor t connectors available for it. Trailer electrical connectors come in a variety of shapes and sizes.
Can also be used as custom wiring on trailers with 3 lightwire systems. Converter for use with vehicles that have separate turn and brake light wires. 34 inch by 1 inch 6 way rectangle connectors right turn signal green left turn signal yellow taillight brown ground white. The red and blue wire can be used for brake control or auxiliary. 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. I have had to mess with trailer wiring for years once or twice a year anyway and i just cannot keep the color code right ect whiteground brn running lights grn right turn yellow left turn.
Depending on the size of your trailer and the number of lights you might want to check on the internet for the recommended gauge for your specific trailer.
Gallery of Standard 4 Wire Trailer Wiring
