Wiring a car tow bar can be a relatively simple task, depending on the age and size of the vehicle you want to attach the tow bar to. It might seem like the logical thing to think that newer cars are easier to wire a tow bar to. In reality it is the older vehicles that are easier to work with when it comes to wiring a tow bar. Harnesses are utilised when wiring a tow bar to older models and these harnesses consist of a female-ended and male-ended harness.
A lot more thought and effort is needed when wiring a tow bar for a later model car however. You would have to understand exactly which wires need to be utilised and where they should be utilised. The wires used in a tow bar are all differently coloured to make it easy to connect to a trailer plug. If you are going to be towing a trailer behind your vehicle, all the lights on the trailer have to be in sync with the lights in your vehicle to ensure safety while travelling. This means brake lights and signal lights have to work together at all times while the vehicle and trailer is on the road.
Usually there are seven different wires that need to be attached to the trailer plug. Make sure that the wires of the tow bar are correctly connected to the plug according to colour. In most cases the yellow wire is first and placed right on top. After that the rest of the coloured wires need to be wired in a clockwise manner. The colours are as follows: Red (after the first wired yellow), brown, green, grey, blue. The black wire is connected last and is usually placed in the middle of the plug. Keep in mind that wires and colours may differ from country to country. If the idea of wiring a tow bar makes you nervous, it would be wise to consult the services of a professional who will be able to assist you in wiring your car tow bar in no time.