12V LED Trailer Light Wiring Diagram

Trailer lights are essential for safe towing, and LED lights are an excellent choice for their brightness and efficiency. In this article, we will discuss how to wire 12V LED trailer lights with a detailed diagram. We will also answer some frequently asked questions about LED trailer lights.

Wiring Diagram

Before we get into the details of wiring, let’s take a look at the diagram for 12V LED trailer lights:

Wire Color Function
Brown Taillights
Yellow Left Turn Signal
Green Right Turn Signal
White Ground

The diagram shows the four wires required for 12V LED trailer lights: brown for taillights, yellow for the left turn signal, green for the right turn signal, and white for the ground. Make sure you have these wires before you start the wiring process.

Taillights

The brown wire is for taillights, which are always on when you turn on your headlights. The taillight function can also include the brake light if your trailer has electric brakes. To wire the taillights, follow these steps:

  1. Strip about 1/4 inch of insulation from the brown wire.
  2. Connect the brown wire to the taillight wire on the trailer side with a butt connector or solder.
  3. Connect the other end of the brown wire to the taillight wire on the LED light with a butt connector or solder.

Repeat this process for the other taillight. You have successfully wired the taillights.

Left Turn Signal

The yellow wire is for the left turn signal. To wire the left turn signal, follow these steps:

  1. Strip about 1/4 inch of insulation from the yellow wire.
  2. Connect the yellow wire to the left turn signal wire on the trailer side with a butt connector or solder.
  3. Connect the other end of the yellow wire to the left turn signal wire on the LED light with a butt connector or solder.

Repeat this process for the other turn signal. You have successfully wired the left turn signal.

Right Turn Signal

The green wire is for the right turn signal. To wire the right turn signal, follow these steps:

  1. Strip about 1/4 inch of insulation from the green wire.
  2. Connect the green wire to the right turn signal wire on the trailer side with a butt connector or solder.
  3. Connect the other end of the green wire to the right turn signal wire on the LED light with a butt connector or solder.

Repeat this process for the other turn signal. You have successfully wired the right turn signal.

Ground Wire

The white wire is for the ground. To wire the ground wire, follow these steps:

  1. Strip about 1/4 inch of insulation from the white wire.
  2. Connect the white wire to the ground wire on the trailer side with a butt connector or solder.
  3. Connect the other end of the white wire to the ground wire on the LED light with a butt connector or solder.

Repeat this process for all the LED lights. You have successfully wired the ground wire.

FAQ

1. What are the benefits of using LED trailer lights?

LED trailer lights have many benefits over traditional incandescent lights. They are brighter, more energy-efficient, and last longer. They also generate less heat, which reduces the risk of fire. LED lights are also more durable and resistant to shock and vibration, making them ideal for use on trailers.

2. Do I need to use a relay for the trailer lights?

A relay is not necessary for wiring 12V LED trailer lights. However, if you want to add additional lights or accessories to your trailer, a relay can help protect your wiring and prevent electrical problems.

3. How do I test the trailer lights?

To test the trailer lights, connect the trailer to your vehicle and turn on the headlights, taillights, and turn signals. Check to make sure all the lights are functioning correctly. You can also use a trailer light tester or a multimeter to test the wiring and individual lights.

4. What should I do if the trailer lights are not working?

If the trailer lights are not working, check the wiring for loose connections, damaged wires, or corrosion. Make sure the correct wires are connected to their corresponding functions. Also, check the fuses and the wiring on your vehicle. If you cannot find the problem, consult a professional mechanic or electrician.

5. Can I use LED trailer lights with a dimmer switch?

No, LED trailer lights cannot be used with a dimmer switch. Dimmer switches are designed for incandescent lights and do not work with LED lights. Instead, you can use a LED-compatible switch or controller to adjust the brightness of the lights.

Conclusion

Wiring 12V LED trailer lights is a simple process that requires a few basic tools and materials. Follow the wiring diagram and the steps outlined in this article to ensure a safe and reliable installation. With proper wiring and maintenance, your LED trailer lights will provide bright and efficient lighting for your towing needs.