By law trailer lighting must be connected into the tow vehicles wiring system to provide trailer running lights turn signals and brake lights. Use on a small motorcycle trailer snowmobile trailer or utility trailer.
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4 wire trailer plug wiring. To ensure your trailer has safe visible and legal lighting a trailer connector wiring adapter may be a necessary towing accessory. Most of us arent electricians but that doesnt mean wiring a trailer or replacing corroded wiring is beyond us. 6 way system rectangle plug. Abn trailer wire extension 20ft 4 way 4 pin plug flat 20 gauge hitch light trailer wiring harness extender by abn perfect cable by robert j. A 4 way plug connects your trailer and tow vehicle and provides the required running lights turn signals ground and brake lights. The most common wire thickness for a trailer is 16 gauge but i bought thicker wiring for added durability.
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. 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. Buy a 4 pin wiring kit with wires at least twenty feet in length so its long enough for your trailer. Start by cutting the white wire and attaching it to the trailer frame. Yellow and green are for left and right turns and braking. Use this 4 pin trailer wiring diagram to properly wire your 4 wire trailer plug.
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. Installing the 4 pin trailer wires. Connecting the wrong color wires will result in mismatched taillight functions and confusion on the road. 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. Following the standard method for wiring a trailer connector is vital to the safety of your vehicle while towing.
Allowing the tow vehicle to control the trailers lighting system. Well walk you through the wiring process its easier than you think. 34 inch by 1 inch 6 way rectangle connectors right turn signal green left turn signal yellow taillight brown ground white. To abide with state laws trailers must be equipped with the proper brake and tail lights and the trailer connector wiring adapter allows you to connect your vehicles electrical network. Trailer electrical connectors come in a variety of shapes and sizes. Wiring new 3 wire light on trailer to replace 2 wire light trailer wiring harness recommendation for a 2007 chevy colorado wiring instructions for optronics 4 12 inch round trailer stop turn and tail light st40rb.
The red and blue wire can be used for brake control or auxiliary.
Gallery of 4 Wire Trailer Plug Wiring
