trailer light wiring colour code

Trailer Light Wiring Colour Code is a tricky concept to understand and can often be the cause of headaches for those looking to do their own wiring. It’s important to understand the different colour codes of the wires, because each one will have a specific purpose.

The primary colour codes are black, red, blue, yellow, green, brown and white. Each of these colours has an assigned voltage level which can vary depending on the complexity of the connection. Black wires are generally considered to be live, while white wires are usually used for ground. Red wires may be used for reverse lights, turn signals, and trailer brakes. Blue or yellow wires are usually used for turn signals, though they can also be employed for other functions as well. Green and brown wires are common for tail lights and brake lights respectively.

It's important to remember that just because a wire of a certain colour is present in the harness doesn't necessarily mean it's going to be used in your particular application. Additionally, it's important to ensure that the correct voltage levels are being used when wiring up the trailer lights. This information can usually be found on the instruction manual of the trailer light harness.

Understanding trailer light wiring colour codes can seem daunting but if done correctly it can help make the wiring process much easier and ensure that everything works correctly. Additionally, understanding the purpose of each coloured code is important to help prevent any unnecessary confusion. With a bit of patience and know-how, wiring up a trailer light harness should be an easy job.

Trailer Wiring Information