How to Test a Trailer Board Lamp With Plug

A trailer board lamp with plug is a legal requirement if you are towing a vehicle. This type of lighting system provides rear and side illumination, along with space for the number plate. These lighting systems are available in various styles and lengths. You should consult the instructions for your particular trailer, as not all models will be compatible with all types of light boards. In addition, you should check the electrical connection to ensure it is secure.

If you have purchased a new trailer, it is a good idea to perform a quick check on the brake lights. This may require the use of a multimeter, although you could also do it yourself. It is important to use the correct voltage on your tester, as too much or too little will cause a malfunction.

Another test that you should try is to check the voltage of your trailer's light wiring system. This can be done by connecting a jumper wire to the plug. Make sure the connection is solid, as a loose connection will result in a drop in voltage. For best results, you should tighten the wire to the metal frame of the trailer.

While checking your connector for continuity, you should also look into the number of pins that you have. The more you have, the more likely it is that the light will function correctly. Also, if you have an older terminal, you should be careful to place the wires on the socket as soon as possible, as corrosion is a common problem.One of the simplest ways to protect your trailer wiring is to purchase a fully sealed wire harness. Some manufacturers provide a "Push & Seal" system, which guarantees waterproof connections.

Similarly, you can protect your connector by applying dielectric grease to the socket and the plug. This will keep your wires from corroding and prevent them from being tangled. Likewise, you can also wrap the connectors in liquid electrical tape, which will do the same job. Lastly, you should store your trailer's cables in a tidy manner.

Another useful trick is to test your trailer's lights with a multimeter. This is a simple but useful procedure, and it will show you the relative strengths of your wiring system. There are many multimeters on the market, but you should choose one with a range of color codes, including a DC volt setting. However, the most interesting and useful meter is the one that can tell you which of your wires is connected to the positive and negative terminals.

Finally, you should check your light's receptacle and its plug for corrosion. This is particularly important if you have a wet climate, since immersion in water can cause a short circuit, blow out the bulb, or even cause the plug to fail. Keep the plug away from water, and be sure to clean the contacts on the receptacle periodically, using a brush and/or power contact cleaner.