Trailer Wiring Diagram 6 Pin: A Comprehensive Guide

Hello and welcome to our detailed guide on trailer wiring diagrams for 6-pin connectors. In this article, we will provide you with a step-by-step breakdown of the wiring diagram, highlighting its advantages, disadvantages, and alternative options. Whether you are a seasoned trailer owner or a beginner, this guide will help you understand the intricacies of a 6-pin trailer wiring system.

1. Understanding the Basics of Trailer Wiring

Before diving into the specifics of a 6-pin trailer wiring diagram, it is essential to grasp the fundamentals. Trailer wiring allows the electrical components of a trailer, such as lights and brakes, to work in sync with the towing vehicle. A 6-pin connector is one of the most commonly used wiring systems, providing a reliable connection between the trailer and the towing vehicle.

Advantages of a 6-Pin Trailer Wiring Diagram

1. Enhanced Safety: The 6-pin wiring system ensures proper grounding and correct power distribution, reducing the risk of electrical malfunctions while towing.

2. Compatibility: Many trailers come equipped with a 6-pin connector, making it compatible with a wide range of towing vehicles.

3. Efficient Functionality: The 6-pin wiring diagram allows for the proper functioning of essential trailer components, including lights, brakes, and auxiliary power.

Disadvantages of a 6-Pin Trailer Wiring Diagram

1. Limited Functionality: A 6-pin connector may not support advanced trailer features, such as reverse lights or electric trailer brakes, which require additional wiring.

2. Complex Installation: While the basic wiring is relatively straightforward, additional features may require professional installation and expertise.

2. Wiring Diagram for a 6-Pin Trailer Connector

Let’s take a closer look at the wiring diagram for a 6-pin trailer connector:

Pin Wire Color Function
1 White Ground
2 Brown Tail/Running Lights
3 Green Right Turn/Brake Lights
4 Yellow Left Turn/Brake Lights
5 Blue Electric Brakes
6 Red 12V Auxiliary Power

This wiring diagram provides a clear understanding of the function of each pin, ensuring a proper connection between the trailer and the towing vehicle.

3. Alternative Wiring Options

While the 6-pin trailer wiring diagram is widely used, there are alternative options available based on specific trailer requirements:

– 4-Pin Wiring Diagram: Suitable for trailers with basic lighting functions and no electric brakes.

– 7-Pin Wiring Diagram: Ideal for trailers with advanced features like reverse lights and electric trailer brakes.


Q: Can I convert a 6-pin wiring system to a 7-pin system?

A: Yes, it is possible to convert a 6-pin wiring system to a 7-pin system by adding the necessary wiring and components. However, professional installation is recommended to ensure proper functionality.

Q: What if my trailer has additional lights or features?

A: If your trailer has additional lights or features not covered by the 6-pin wiring diagram, you may need to consult a professional or refer to the specific wiring instructions provided by the trailer manufacturer.


In conclusion, understanding the trailer wiring diagram for a 6-pin connector is crucial for safe and efficient towing. The 6-pin system offers enhanced safety, compatibility, and functionality, although it may have limitations when it comes to advanced trailer features. By following the provided wiring diagram and considering alternative options when necessary, you can ensure a seamless towing experience with your 6-pin wired trailer.