6 Pin Trailer Connector Wiring Diagram: A Comprehensive Guide

Hauling a trailer needs a safe connection between the towing vehicle and the trailer. This connection is established through a trailer connector that transfers signals between the two units. One of the most common types of trailer connectors is the six-pin variant that is widely used for light-duty trailers.

The 6 pin trailer connector wiring diagram is essential for anyone who wants to ensure a proper connection. This article details the necessary steps to wire the six-pin trailer connector and gives a comprehensive guide to its functionality.

What is a 6 Pin Trailer Connector?

A six-pin trailer connector is a wiring configuration that connects the towing vehicle and the trailer. The six terminals on the connector are essential in transmitting the necessary signals between the two units.

The six-pin connector is one of the most popular connectors for light-duty trailers. It is compatible with a wide range of trailer types, including boat trailers, utility trailers, and small campers.

What are the Pin Functions of a 6 Pin Trailer Connector?

The six terminals on the 6 pin trailer connector have distinct functions, and it is crucial to understand them to make the proper connection.

Pin Number Function
1 Ground
2 Left Turn/Brake Lights
3 Right Turn/Brake Lights
4 Tail Lights
5 Electric Brake Control
6 12V+ Battery Charge

Table 1: Pin Functions of a 6 Pin Trailer Connector

Wiring a 6 Pin Trailer Connector

The following steps will guide you in wiring your 6 pin trailer connector:

Step 1: Gather the Required Tools and Materials

You will need a 6 pin trailer wiring kit, a pair of wire cutters, cable ties, and electrical tape.

Step 2: Prepare the Wires

Strip the ends of the wires on both the towing vehicle and the trailer, leaving about 1/2 inch of bare wire.

Step 3: Connect the Ground Wire

The first pin on the connector is the ground pin. Connect the ground wire of the towing vehicle to the ground wire of the trailer using a crimp connector or soldering. Secure the connection with electrical tape.

Step 4: Connect the Left Turn/Brake Light Wires

Connect the left turn/brake lights wire on the towing vehicle to the corresponding wire on the trailer using a crimp connector or soldering. Secure the connection with electrical tape. Repeat the same for the right turn/brake lights and tail lights wires.

Step 5: Connect the Electric Brake Control Wire

The electric brake control wire on the towing vehicle connects to the electric brake control wire on the trailer. Use a crimp connector or soldering to make the connection and secure it with electrical tape.

Step 6: Connect the 12V+ Battery Charge Wire

The last wire to connect is the 12V+ battery charge wire. Connect the towing vehicle’s 12V+ wire to the trailer’s 12V+ wire using a crimp connector or soldering. Cover the connection with electrical tape.

FAQs

1. How do you test a 6-pin trailer connector?

You can use a multimeter to test the six-pin trailer connector. Set the multimeter to continuity mode and connect the positive probe to each pin on the connector. Then, connect the negative probe to the towing vehicle’s ground. If the multimeter beeps, the connection is working.

2. What fuse size is needed for a 6-pin trailer connector?

The fuse size for a 6-pin trailer connector depends on the wiring gauge used. Generally, a 10-amp fuse is suitable for a 16-gauge wire; a 15-amp fuse for a 14-gauge wire, and a 20-amp fuse for a 12-gauge wire.

3. Can I upgrade my 6-pin trailer connector to a 7-pin variant?

Yes, you can upgrade your 6-pin trailer connector to a 7-pin variant. However, it will require additional wiring and a new connector. It is best to consult with a professional technician to ensure a proper upgrade.

4. How do you repair a damaged 6-pin trailer connector?

If the 6-pin trailer connector is damaged, it is best to replace it with a new one. However, you can repair the connector by cutting off the damaged part and reconnecting the wires to the appropriate pins using crimp connectors or soldering. Secure the connections with electrical tape.

5. How far should the trailer connector be from the ground?

The trailer connector should be 12-18 inches off the ground to prevent it from dragging on the ground and causing damage.

Conclusion

A proper connection between the towing vehicle and the trailer is essential to ensure safe hauling. Wiring the 6-pin trailer connector is a simple process that requires the right tools and materials. The 6 pin trailer connector wiring diagram is a helpful guide that explains the pin functions and wiring process. Understanding how to wire the 6-pin trailer connector is crucial for anyone who wants to haul trailers safely.