If you’re looking for a reliable police car light bar, the Whelen Justice is a trusted option. However, installing it can be a challenge without the right guidance. In this article, we’ll explore the Whelen Justice wiring diagram and provide you with a step-by-step guide to ensure a successful installation.
What is the Whelen Justice?
The Whelen Justice is an LED light bar that is designed to provide maximum visibility and safety for law enforcement vehicles. It is a popular choice due to its sleek design and advanced technology that ensures dependable performance.
The Whelen Justice is available in a variety of lengths and colors, making it easy to find the perfect fit for your vehicle. In addition, it can be customized with various add-ons like flash patterns, takedown lights, and alley lights.
Wiring Diagram for the Whelen Justice
To properly wire the Whelen Justice, you’ll need to refer to the wiring diagram. This diagram provides a visual representation of how the light bar should be connected to the vehicle’s electrical system.
It’s important to note that the wiring diagram may vary depending on the specific model of the Whelen Justice that you have. Therefore, it’s essential to carefully read the instructions that come with your particular light bar.
Here is an example of a typical Whelen Justice wiring diagram:
| Wire Color | Description |
| Red | Power (+) |
| Black | Ground (-) |
| Yellow | Flash Pattern Control |
| Blue | Alley Light Control |
| White | Takedown Light Control |
Step-by-Step Guide to Installing the Whelen Justice
Step 1: Prepare Your Vehicle
Before you begin wiring the Whelen Justice, you’ll need to make sure your vehicle is properly equipped. This includes ensuring that you have the necessary mounting brackets and hardware to securely attach the light bar to your vehicle.
You’ll also need to locate the power source for the light bar. This is typically found at the fuse box or battery.
Step 2: Mount the Whelen Justice
Next, you’ll need to mount the Whelen Justice to your vehicle. This involves attaching the mounting brackets to the light bar and then securing the brackets to your vehicle.
It’s important to follow the manufacturer’s instructions carefully to ensure that the light bar is securely mounted and won’t come loose while driving.
Step 3: Connect the Power and Ground Wires
The power and ground wires are essential for powering the Whelen Justice. To connect these wires, you’ll first need to locate the power source (as mentioned in Step 1).
Using a wire cutter/stripper, cut a section of wire from the power source and strip the ends. Then, connect the red wire from the Whelen Justice to the positive wire from the power source.
Next, connect the black wire from the Whelen Justice to a grounding point on your vehicle. This could be a metal bolt, bracket, or other grounded surface.
Step 4: Connect the Flash Pattern, Alley Light, and Takedown Light Wires
Depending on the specific Whelen Justice model you have, you may need to connect additional wires for the flash pattern, alley light, and takedown light controls.
To do this, refer to the wiring diagram for your particular model and connect the corresponding wires to their designated controls.
Step 5: Test the Whelen Justice
Once all the wires are connected, turn on your vehicle and test the Whelen Justice to make sure it’s working properly.
If everything is working correctly, you’re done! Your Whelen Justice is now installed and ready to use.
Frequently Asked Questions (FAQ)
Q: What should I do if my Whelen Justice isn’t working?
A: First, check to make sure that all the wires are properly connected and that the light bar is securely mounted to your vehicle. If everything looks good, try testing the light bar on a different vehicle to see if it works. If it still doesn’t work, contact the manufacturer for assistance.
Q: Can I install the Whelen Justice myself?
A: While it is possible to install the Whelen Justice yourself, it is recommended that you have some experience with electrical wiring and/or the installation of police vehicle equipment. If you’re unsure of how to properly install the light bar, it’s best to seek professional help.
Q: Is the Whelen Justice weather-resistant?
A: Yes, the Whelen Justice is designed to be weather-resistant and can withstand rain, snow, and other inclement weather conditions. However, it’s important to properly seal all connections to prevent water from getting into the wiring.
Q: Can I customize the Whelen Justice to fit my needs?
A: Yes, the Whelen Justice can be customized with various add-ons like flash patterns, takedown lights, and alley lights. However, it’s important to make sure that any customization is done by a professional to ensure that it doesn’t interfere with the proper functioning of the light bar.
In conclusion, the Whelen Justice is a reliable and popular police car light bar that provides maximum visibility and safety. With the right guidance and proper installation, you can have the peace of mind that comes with knowing your vehicle is well-equipped to handle any emergency situation.
