Jeep JK Tail Light Wiring Diagram – A Comprehensive Guide

Jeep owners love to customize and upgrade their vehicles, and one popular modification is to change the tail lights. Whether you want to add more style to your Jeep or improve the brightness of your lights, changing the tail lights can be a fun and rewarding project.

Understanding the Jeep JK Tail Light Wiring Diagram

Before you start working on your new tail lights, it’s important to understand the wiring diagram. The wiring diagram shows how the various wires connect to each other and to the vehicle’s electrical system. It’s essential to follow this diagram to ensure that everything is wired correctly and your new tail lights function as intended.

The wiring diagram for the Jeep JK tail lights is relatively simple. There are four wires that connect to each tail light: the ground wire, the brake light wire, the turn signal wire, and the running light wire. The ground wire is typically black, while the other three wires can vary in color depending on the manufacturer.

It’s important to note that the wiring diagram may vary slightly depending on the year and model of your Jeep JK. Always refer to the specific wiring diagram for your vehicle to ensure that you’re following the correct instructions.

Step-by-Step Guide to Wiring Your New Jeep JK Tail Lights

Now that you understand the wiring diagram, let’s go through the steps to install your new tail lights:

Step 1: Disconnect the Battery

Whenever you’re working on the electrical system of your vehicle, it’s crucial to disconnect the battery to prevent any electrical shocks or damage to the system. Locate the battery in your Jeep and remove the negative cable to disconnect the power.

Step 2: Remove the Old Tail Lights

Remove the screws or bolts that connect the old tail lights to your Jeep. Carefully pull them away from the vehicle and disconnect the wiring harness from the back of the lights.

Step 3: Wire the New Tail Lights

Refer to the wiring diagram for your specific tail lights and connect the wires accordingly. The ground wire should be connected to a metal point on your Jeep’s frame or body, while the brake light, turn signal, and running light wires should be connected to their respective wires on the vehicle’s electrical system.

Step 4: Test Your New Tail Lights

Before you reinstall the tail lights, it’s important to test them to ensure that they’re functioning correctly. Reconnect the battery and turn on your Jeep’s electrical system. Test each aspect of the tail lights, including the brake lights, turn signals, and running lights.

Step 5: Reinstall the Tail Lights

Once you’re satisfied that the new tail lights are functioning correctly, you can reinstall them. Replace the screws or bolts that hold the tail lights in place and reconnect the wiring harness.

FAQ About Jeep JK Tail Light Wiring Diagram

Here are some frequently asked questions about Jeep JK tail light wiring diagram:

Question Answer
What do the different wires in the wiring diagram do? The ground wire connects the tail light to the vehicle’s frame, while the brake light wire turns on the brake lights when you press the pedal. The turn signal wire activates the turn signals, and the running light wire turns on the tail lights when you turn on your headlights.
Do I need any special tools to wire my new tail lights? You may need a wire crimper or stripper to properly connect the wires. It’s also a good idea to have a multimeter to test the wires and ensure that the electrical connections are correct.
Can I install LED tail lights on my Jeep JK? Yes, you can install LED tail lights on your Jeep JK. However, you may need to install a resistor to prevent the lights from flashing quickly or not working at all. Refer to the manufacturer’s instructions for more information.
What should I do if my new tail lights aren’t working? Double-check the wiring connections and refer to the wiring diagram to ensure that everything is connected correctly. Test the electrical connections with a multimeter to check for any issues. If you’re still having trouble, consult a professional mechanic or auto electrician for assistance.

Conclusion

Changing the tail lights on your Jeep JK can be a fun and rewarding project. By following the wiring diagram and the steps outlined in this guide, you can wire your new tail lights correctly and ensure that everything is functioning as intended. If you have any questions or concerns, consult a professional mechanic or auto electrician for assistance.