Wiring Diagram For 4 Wire Round Trailer Plug - Wiring Diagram and Schematic

Wiring Diagram For 4 Wire Round Trailer Plug

Are you looking to install a trailer plug in your vehicle? If so, you need to know how to properly wire the 4 wire round trailer plug. This type of plug is commonly used on vehicles with trailer brakes, so it’s important to understand the wiring diagram for this type of plug.

First, let’s look at the basics of the 4 wire round trailer plug. The four wires in the plug are designed to control the brake and turn signal lights on your trailer and to provide the necessary power for the brakes. The four wires are divided into two pairs: the Left Hand Turn/Brake and the Right Hand Turn/Brake. The first wire in each pair is the Left Turn/Brake wire, while the second wire in each pair is the Right Turn/Brake wire.

Next, let’s discuss the wiring diagram for the 4 wire round trailer plug. You’ll need to connect the four wires to the corresponding plugs in the back of the vehicle. The first wire in the pair will be connected to the left turn/brake plug, while the second wire in the pair will be connected to the right turn/brake plug. Then, the third wire in the pair will be connected to the ground plug, while the fourth wire in the pair will be connected to the positive plug.

Finally, once you’ve connected all four wires, it’s time to test the connection. Make sure that the brake and turn signal lights are working properly, and that the power for the brakes is flowing correctly. Once you’ve verified that everything is working properly, you’re ready to hit the road with your trailer.

By following the wiring diagram for the 4 wire round trailer plug, you can ensure that your trailer is set up correctly and that the brakes and turn signals are functioning properly. With the correct wiring in place, you can confidently hit the road with your trailer in tow.

Wiring Diagram Heritage Trailers