2006 Silverado Tail Light Wiring Diagram (2024)

FAQs

What are the colors of tail light wiring harness? ›

1) The white color signifies the ground. 2) The brown color indicates tail lights or possible side markers. 3) The yellow color implies a left turn signal light. 4) The green color means a right turn signal or light.

One of the primary culprits behind non-functional tail lights in a Silverado is burnt-out bulbs or blown fuses. Over time, bulbs can wear out, leading to a loss of functionality. Similarly, a blown fuse might disrupt the electrical supply to the tail lights, causing them to stop working altogether.

If both tail lights aren't working, potential causes can be blown fuses, burnt-out bulbs, wiring issues, or a malfunctioning switch. It's essential to troubleshoot each potential cause systematically to pinpoint the issue.

The tail lights have 3 wires. One for ground. One for marker. One for stop and turn.

Ground wire is black.

Faulty Control Switch

Another vital component on the electrical path, the switch that controls the tail lights can stop working. You can either pull it out from the dash and check it with a multimeter or take it to the mechanic for inspection.

If there is no power on the left rear tail light circuit, then either there is a broken/damaged wire somewhere in the harness, a loose connection at the body computer, or there body computer is faulty.

A blown fuse, bad tail light bulb, and a faulty tail light socket can prevent your tail lights from turning on along with the headlights. Faulty tail lights are a safety hazard. Driving without them increases your risk of getting rear-ended by another vehicle.

A blown fuse usually causes both lights to go out. On newer cars, the tail lamps can be fused separately and/or each bulb or shared circuit can be fused. A fuse can be blown due to other problems, so you'll need to check more than just the fuse, but it's the right place to start.

If you have a malfunctioning tail light, it could be a matter of a blown fuse. The fuses work with your car's electrical panel and if they're blown, it can cause several lights to stop working. Replace the fuse and see if this helps. Another issue may be related to your wiring.

What controls tail lights? ›

Currently, these lamps are controlled and driven by the body control ECU (electronic control unit). With this constant voltage architecture, the control and drive function for the LEDs can remain in the ECU with minimal design modifications.

The three wires in a taillight are typically representing two functions: 1) One wire is negative or ground, 2.) A second wire of different color for marker light (on for night time use), and 3.)

In general you should not do such things.

You can usually splice wires just by twisting them together, then covering the splice securely with electrical tape. However, if you want a stronger splice, you could use a soldering iron.

The brown wire is for running the taillights. It powers the trailer's taillights, side marker lights and license plate light.

Positive – red wire. Negative – black wire. Ground – white or gray wire.

The blue wire to the brake light is for increasing safety. If you hook this wire, all LED strips will turn RED when you brake. Other people driving behind you will notice you better. Anyway, it's up to you for its hooking or not.

In the U.S., the National Electrical Code (NEC) designates the color code for electrical cables. “Hot” cables are black, red, and blue. In cases of higher voltage lines, orange might also be used to indicate a hot cable. White or gray indicates a neutral, and green or green with a yellow stripe indicates a ground.