7 Way Trailer Wiring Color Diagram: A Comprehensive Guide

Are you looking for a reliable guide on the 7 way trailer wiring color diagram? Look no further! This article aims to provide a comprehensive understanding of the 7 way trailer wiring diagram and its color codes. We will walk you through the different wiring configurations, color codes, and their functions. Whether you are a beginner or a seasoned pro, this article has valuable information for you. Let’s dive in!

What is a 7 way trailer wiring diagram?

Before we delve into the details of the 7 way trailer wiring diagram, it is essential to understand what it is. A 7 way trailer wiring diagram is a wiring system that connects your trailer’s electrical system to your towing vehicle. It consists of seven different wiring codes that are color-coded and organized to ensure that each wire has a specific function.

The 7 way trailer wiring diagram features four contacts that provide power to the vehicle’s lights and power to the trailer’s lights. The remaining three contacts are for auxiliary power, ground, and reverse lights. Each wire has a specific color to indicate its function, making it easy to connect.

7 Way Trailer Wiring Color Diagram: The Wiring Configurations

There are two types of 7-way trailer wiring configurations: the RV-style and the flat-pin style. The RV-style configuration is typically used for travel trailers, while the flat-pin style is more commonly used for boat trailers and other types of trailers. Here’s a brief overview of each wiring configuration:

The RV-Style Wiring Configuration

The RV-style wiring configuration is the most common wiring configuration used for travel trailers. It consists of a round 7-pin connector that is usually mounted on the vehicle’s bumper or hitch. Here are the wiring codes and their functions:

Color Function
White Ground
Blue Electric Brakes
Green Tail Lights, Running Lights, and Marker Lights
Yellow Left Turn Signal and Brake Lights
Brown Right Turn Signal and Brake Lights
Red Reverse Lights
Black Battery Charge (+)

It is important to note that the RV-style wiring configuration uses a blade-type connector that is commonly referred to as a “spade” connector. The spade connector ensures that the connections are secure and can withstand the rigors of towing.

The Flat-Pin Wiring Configuration

The flat-pin wiring configuration is commonly used for boat trailers and other types of trailers. It features a rectangular-shaped connector with flat pins. Here are the wiring codes and their functions:

Color Function
White Ground
Blue Electric Brakes
Brown Tail Lights, Running Lights, and Marker Lights
Yellow Left Turn Signal and Brake Lights
Green Right Turn Signal and Brake Lights
Red Reverse Lights
Black Battery Charge (+)

It is essential to note that the flat-pin wiring configuration uses a different type of connector than the RV-style wiring. The flat-pin connector ensures that the connections are secure and can withstand the rigors of towing.

7 Way Trailer Wiring Color Diagram: Frequently Asked Questions (FAQs)

What is the difference between an RV-style and a flat-pin style trailer connector?

The RV-style connector is a round, spade connector that is commonly used for travel trailers, while the flat-pin style connector is a rectangular-shaped connector with flat pins that is commonly used for boat trailers and other types of trailers.

What is the function of the white wire in the 7 way trailer wiring color diagram?

The white wire is the ground wire, and it is used to ground the trailer’s electrical system to the towing vehicle’s electrical system.

What is the function of the black wire in the 7 way trailer wiring color diagram?

The black wire is the battery charge wire, and it is used to charge the trailer’s battery while the vehicle is in operation.

What is the function of the blue wire in the 7 way trailer wiring color diagram?

The blue wire is the electric brake wire, and it is used to provide power to the trailer’s electric brakes.

What is the function of the brown wire in the 7 way trailer wiring color diagram?

The brown wire is used to power the trailer’s tail lights, running lights, and marker lights.

What is the function of the yellow wire in the 7 way trailer wiring color diagram?

The yellow wire is used to power the left turn signal and brake lights on the trailer.

What is the function of the green wire in the 7 way trailer wiring color diagram?

The green wire is used to power the right turn signal and brake lights on the trailer.

Conclusion

In conclusion, the 7 way trailer wiring color diagram is an important system that connects your trailer’s electrical system to your towing vehicle. Understanding the different wiring configurations, color codes, and their functions is essential in ensuring that your trailer’s electrical system functions correctly. We hope that this guide has provided you with valuable information on the 7 way trailer wiring color diagram. Happy towing!