Car Trailer Plug Wiring Uk

By | August 15, 2022



Car trailer plug wiring is a crucial part of keeping your car safe and secure, especially for off-roaders. While most cars are designed with a standard plug and wiring system, some countries, such as the UK, have specific requirements in place when it comes to trailer wiring.

In the UK, all car trailers must be fitted with a seven-pin plug for which wiring should adhere to specific regulations. The seven-pin plug is made up of 7 colours: green, yellow, brown, black, blue, red, and white. Each of these colours has a specific purpose, and knowing how to wire the plug correctly is essential to ensure the safety of both yourself and your car.

The wiring of the seven-pin plug should start at the back of the trailer, with the green wire being connected first. This wire is responsible for the brake lights, and should always be in the middle. Following this, the yellow and brown wires should be connected – these control the turn indicators. On the right hand side of the plug, the black and white wires should be connected – these are responsible for reversing lights and fog lamps. Finally, the blue and red wires should be connected on the left – these are for right and left indicator lights.

Understanding the correct car trailer plug wiring is key to the safe use of car trailers. In the UK, it is critical that all car trailers have the appropriate seven-pin plugs and that they are wired correctly. By following the simple instructions outlined above, drivers can ensure that their car and trailer are well-connected and secure. With the right knowledge, wiring a trailer plug for a car trailer will be easy and hassle free.


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