Are you looking for a clear and concise guide on how to wire the trailer plug in your 2019 Silverado? You’ve come to the right place. In this article, we’ll provide you with a comprehensive wiring diagram and answer some frequently asked questions to ensure that your trailer is properly connected to your vehicle’s electrical system.
Trailer Plug Wiring Diagram
The wiring diagram below shows the standard seven-pin trailer plug wiring setup for a 2019 Silverado:
| Pin | Wire Color | Function |
|---|---|---|
| 1 | Black | Ground |
| 2 | Blue | Electric Brakes |
| 3 | White | Ground (Return) |
| 4 | Brown | Tail Lights |
| 5 | Yellow | Left Turn/Stop |
| 6 | Green | Right Turn/Stop |
| 7 | Red | Auxiliary (12V Power) |
Now, let’s go over each pin and its respective wire color and function:
Pin 1 (Black) – Ground
This pin connects to the trailer’s chassis and serves as a ground wire. It is essential for the proper functioning of the trailer’s electrical system.
Pin 2 (Blue) – Electric Brakes
This pin provides power to the trailer’s electric brakes. It is only used if your trailer is equipped with electric brakes.
Pin 3 (White) – Ground (Return)
This pin provides an additional ground connection to the trailer’s electrical system. It is also essential for the proper functioning of the trailer’s electrical system.
Pin 4 (Brown) – Tail Lights
This pin provides power to the trailer’s tail lights. It is essential for safety when driving at night or in low light conditions.
Pin 5 (Yellow) – Left Turn/Stop
This pin provides power to the trailer’s left turn signal and stop light. It is essential for safety when turning or stopping.
Pin 6 (Green) – Right Turn/Stop
This pin provides power to the trailer’s right turn signal and stop light. It is essential for safety when turning or stopping.
Pin 7 (Red) – Auxiliary (12V Power)
This pin provides power to the trailer’s auxiliary equipment, such as interior lights or a winch. It is only used if your trailer is equipped with such equipment.
FAQ
1. Can I use a four-pin trailer plug on my 2019 Silverado?
No. A four-pin trailer plug is not compatible with a 2019 Silverado’s electrical system. You need a seven-pin trailer plug to properly connect your trailer to your vehicle’s electrical system.
2. How do I test my trailer’s electrical system?
You can test your trailer’s electrical system by using a voltmeter. Connect the voltmeter’s negative lead to the trailer’s chassis and the positive lead to each pin in the trailer plug. Test each pin one at a time, and ensure that each pin is receiving the correct voltage according to the wiring diagram above.
3. What do I do if my trailer’s lights aren’t working?
If your trailer’s lights aren’t working, the first thing you should do is check the wiring connections. Ensure that all connections are tight and secure. Also, check the fuses in both your vehicle and trailer’s electrical systems.
4. Can I use a test light instead of a voltmeter?
Yes. If you don’t have a voltmeter, you can use a test light to test your trailer’s electrical system. Connect the test light’s clip to the trailer’s chassis and touch the probe to each pin in the trailer plug. A working pin will illuminate the test light.
5. Do I need to ground my trailer’s electrical system?
Yes. A properly grounded trailer electrical system is essential for safe and reliable operation. Ensure that the trailer’s chassis is grounded to the vehicle’s electrical system and that all electrical components are properly grounded as well.
Conclusion
Wiring the trailer plug in your 2019 Silverado may seem daunting, but with the wiring diagram and information provided in this article, you should be able to do it with confidence. As always, ensure that your trailer’s electrical system is properly maintained and functioning before hitting the road.
