If you’re a proud owner of a 2019 Chevy Silverado and need to tow a trailer, you’ll have to understand how its trailer wiring works. The wiring system of your Chevy Silverado is responsible for transmitting electrical signals from your vehicle to the trailer. This system is critical when towing a trailer as it ensures that all trailer lights, including brakes and turn signals, work correctly. In this article, we’ll provide you with a complete guide on the 2019 Chevy Silverado trailer wiring diagram to help you get the job done right.
Understanding the Chevy Silverado Trailer Wiring System
The 2019 Chevy Silverado trailer wiring system is designed to operate using a standard four-pin trailer wiring connector. The four-pin connector is the most common type of trailer wiring used today. This wiring system is easy to install and operate, making it a suitable option for most trailer connections.
The four-pin connector features four wires that are color-coded as follows:
| Wire Color | Function |
| Brown | Tail Lights |
| Green | Right Turn Signal |
| Yellow | Left Turn Signal |
| White | Ground |
The four-pin connector is located under the rear bumper of your Chevy Silverado. To access this connector, you’ll need to remove the bumper cover or the receiver hitch.
FAQ:
Q: How do I know which wire is for which function?
A: You can use a circuit tester to identify the function of each wire. Connect the tester to the trailer connector and have someone use the corresponding function on the vehicle while you check the tester.
Q: Can I tow a trailer with more than four wires?
A: Yes, you can. If your trailer requires more wires than the standard four-pin connector, you’ll need to install a seven-pin connector. The seven-pin connector is designed to handle additional functions such as electric brakes and reverse lights.
Q: What if my trailer lights aren’t working?
A: First, check that the trailer is properly connected to the Chevy Silverado. If the connection is correct, use a circuit tester to check that there is power to the vehicle-side connector. If there’s no power, check the fuse and relays responsible for the trailer wiring system.
How to Install a Trailer Wiring Harness on a 2019 Chevy Silverado
Installing a trailer wiring harness on your Chevy Silverado is a simple task that you can easily do at home. You’ll need a trailer wiring harness kit, a socket wrench, and wire cutters.
Step 1: Remove the Tail Lights
Start by removing the tail lights from your Chevy Silverado. Use a socket wrench to remove the bolts that hold the tail lights in place. Once the tail lights are free, unplug the wiring harness from the back of the lights.
Step 2: Install the Wiring Harness
Connect the wiring harness to the vehicle-side connector. Follow the color-coding for each function. Once you’re done, connect the wiring harness to the tail light wiring harness, and install the tail lights back onto your Chevy Silverado. Use the bolts to secure the tail lights.
Step 3: Test the Wiring System
Test that the wiring system is working correctly by connecting the trailer and activating each function. Check that all the lights and signals work correctly. If necessary, use a circuit tester to ensure that each wire is functioning correctly.
FAQ:
Q: Do I need to use a wiring harness?
A: Yes, it’s recommended that you use a wiring harness. A wiring harness ensures that the wiring system is protected and works correctly. A wiring harness also ensures that your Chevy Silverado warranty is not voided.
Q: How long does it take to install a wiring harness?
A: Installing a wiring harness should take approximately two hours to complete.
Q: Where can I buy a wiring harness kit?
A: You can buy a wiring harness kit at an autoparts store, online, or at a dealership. Make sure to get a kit compatible with your Chevy Silverado model and year.
Conclusion
The 2019 Chevy Silverado trailer wiring diagram is a critical guide to help you tow safely and securely. Understanding the wiring system ensures that you can connect your trailer correctly and that all lights and signals work correctly. Follow the instructions provided in this guide to install a wiring harness on your Chevy Silverado and get ready to tow your trailer.
