Tail Light Wiring Color Code

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Last Updated on January 27, 2023 by Victor Lukasso

The color code for tail light wiring can vary depending on the vehicle and the specific tail light assembly.

Tail light wiring color codes are an important factor to consider when repairing or replacing the tail lights on your vehicle. These codes are standard across most vehicles, but it is always best to consult your vehicle’s owner’s manual or a professional mechanic to be sure.

The basic color code for tail light wiring is as follows:

  • Red: Stop/tail light
  • Black: Tail light
  • Green: Right turn signal
  • Yellow: Left turn signal

Red: The red wire is typically used for the stop/tail light, which is the center light on the tail light assembly. This light is used when the brakes are applied, and it is also used as the tail light when the headlights are on.

Black: The black wire is typically used for the tail light, which is the outer light on the tail light assembly. This light is used when the headlights are on, and it provides additional visibility to the rear of the vehicle.

Green: The green wire is typically used for the right turn signal. This wire connects to the right turn signal bulb on the tail light assembly.

Yellow: The yellow wire is typically used for the left turn signal. This wire connects to the left turn signal bulb on the tail light assembly.

In addition to these basic colors, there may also be other wires present in the tail light wiring harness. These may include white, blue, and brown wires, which are typically used for additional functions such as reverse lights and brake lights.

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When repairing or replacing the tail lights on your vehicle, it is important to connect the wires to the correct terminals on the tail light assembly.

Using the wrong color wire can cause the lights to function improperly, which can be dangerous and can result in a traffic citation.

To ensure that the tail light wiring is installed properly, it is best to consult a professional mechanic or refer to the vehicle’s wiring diagram.

This diagram can usually be found in the vehicle’s owner’s manual, or it can be obtained from the vehicle manufacturer. The wiring diagram will show the color of each wire and its function, as well as the location of each wire in the tail light assembly.

Stop/Turn/Tail Light Wiring Diagram

FAQs

Q: What color is the wire for tail lights?

The color of the wire for tail lights can vary depending on the vehicle and the specific tail light assembly. In most cases, the wire for tail lights is black. However, it’s always best to check the specific wiring diagram for your vehicle to be sure. You can usually find this information in the vehicle’s owner’s manual, or you can consult a professional mechanic for assistance.

Q: What are the 3 wires to a tail light?

The three wires that are commonly connected to a tail light are the stop/tail light wire, the tail light wire, and the ground wire.

  1. The stop/tail light wire carries the power for the stop lights and the tail lights. This wire is usually red in color.
  2. The tail light wire carries the power for the tail lights only. This wire is usually black in color.
  3. The ground wire provides a path for the electrical current to flow back to the vehicle’s electrical system. This wire is usually connected to the vehicle’s chassis and is typically bare or coated in green insulation.
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It’s important to note that the specific wiring configuration for a tail light can vary depending on the vehicle and the specific tail light assembly.

Q: Which tail light wire is positive?

The tail light wire that is positive is the stop/tail light wire. This wire carries the power for the stoplights and the taillights, and it is usually red in color. The other tail light wire, which is usually black in color, carries the power for the tail lights only.

Conclusion

The Color code for tail light wiring is an important factor in ensuring that your tail lights are functioning properly.

By knowing the color code and consulting the vehicle’s wiring diagram, you can make sure that your tail lights are properly connected and functioning.

If you’re not comfortable working with vehicle wiring, it’s best to have a professional mechanic handle the installation and repair of your tail lights. This will help ensure that your vehicle is safe and compliant with the law.

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