Are you a new trailer owner and confused about the wiring setup for your trailer brakes? Look no further! This guide will provide you with a complete 6 pin trailer brake wiring diagram and all the information you need to know for successful installation.
What is a 6 Pin Trailer Brake Wiring Diagram?
A 6 pin trailer brake wiring diagram is a schematic diagram that outlines the wiring connections for a trailer. Specifically, it shows how to connect the trailer’s brakes to the vehicle’s brake system. The 6 pins on the diagram are used to connect the trailer’s brake lights, turn signals, brake controller, and power supply.
If you are planning to tow a trailer with electric brakes, understanding the wiring setup is crucial for safe and efficient operation. By following this guide, you can easily set up your trailer brakes to work seamlessly with your vehicle.
Understanding the 6 Pin Trailer Brake Wiring Diagram
The wiring diagram consists of six pins that represent the connection points between the towing vehicle and the trailer. The six pins each have a specific function, which we will discuss in detail:
| Pin | Function |
|---|---|
| 1 | Ground |
| 2 | Electric Brake Control |
| 3 | Tail, License, and Running Lights |
| 4 | Battery Charge |
| 5 | Left Turn/Brake |
| 6 | Right Turn/Brake |
Note that the pins are numbered from 1 to 6 starting from the top left corner and moving clockwise.
Pin 1: Ground
The ground pin is essential for any electrical system. It provides a path for electrical current to flow back to the battery. For trailers, the ground connection is usually made by attaching a wire to the trailer frame.
Pin 2: Electric Brake Control
This pin connects the electric brakes on the trailer to the brake controller in the towing vehicle. It carries the signal from the brake controller that activates the trailer brakes when the towing vehicle’s brakes are applied. This pin is often referred to as the “brake signal” or “brake power” pin.
Pin 3: Tail, License, and Running Lights
This pin provides power to the trailer’s tail lights, license plate light, and running lights. It is also used to activate the brake lights on the trailer when the towing vehicle’s brakes are applied.
Pin 4: Battery Charge
If your trailer has a battery, this pin is used to charge it while the towing vehicle is in motion. It is usually connected to the towing vehicle’s battery through a power line.
Pin 5: Left Turn/Brake
This pin connects the left turn signal and brake light on the trailer to the towing vehicle. When activated, it illuminates the left turn signal on the trailer and activates the trailer brakes when the towing vehicle’s brake pedal is pressed.
Pin 6: Right Turn/Brake
Similar to pin 5, this pin connects the right turn signal and brake light on the trailer to the towing vehicle. It illuminates the right turn signal on the trailer and activates the trailer brakes when the towing vehicle’s brake pedal is pressed.
How to Install a 6 Pin Trailer Brake Wiring Diagram
The installation process for a 6 pin trailer brake wiring diagram is relatively straightforward. Here are the steps:
Step 1: Gather Materials
Before starting, you will need to gather the following materials:
- 6-pin wiring harness
- Wire strippers/crimpers
- Electrical tape
- Zip ties
- Phillips and flathead screwdrivers
- Drill and bits (if mounting wiring harness)
Step 2: Disconnect the Battery
Before starting any electrical work, disconnect the battery of the towing vehicle to avoid any accidents.
Step 3: Mount the Wiring Harness
Mount the wiring harness on the trailer or in a convenient location. Make sure it is securely fastened and won’t move during transit. Use zip ties to secure the wires and prevent them from dangling.
Step 4: Strip the Wires
Strip the ends of the wires on both the trailer and harness ends. Make sure to strip only a small amount of insulation to avoid damaging the wire.
Step 5: Connect the Wires
Connect the wires according to the 6 pin trailer brake wiring diagram. Use wire connectors or heat shrink tubing to secure the wires together. Use electrical tape to cover exposed wires, if necessary.
Step 6: Test the Wiring
Test the wiring by connecting the trailer to the towing vehicle and turning on the appropriate lights and signals. Check that all lights are working correctly, and the brake controller is sending signals to the trailer brakes.
Frequently Asked Questions (FAQ)
What is a brake controller?
A brake controller is an electronic device that sends signals from the towing vehicle to the trailer’s brakes. It is usually installed under the dashboard of the towing vehicle and has adjustable settings for brake sensitivity and strength.
Can I install a 6 pin trailer brake wiring diagram myself?
Yes, you can install a 6 pin trailer brake wiring diagram yourself if you have some experience with electrical systems. However, if you are not confident in your abilities, it is recommended to have a professional install it for you.
What is the purpose of the battery charge pin?
The battery charge pin is used to charge a trailer’s battery while in transit. It is especially useful for trailers with electric brakes and onboard electronics, such as refrigerators or lights.
What should I do if my trailer brakes are not working?
If your trailer brakes are not working, check that the wiring connections are secure and that the brake controller is sending signals to the trailer. Make sure the brakes are adjusted correctly and that the brake pads and rotors are in good condition. If you are still having issues, consult a professional mechanic or trailer repair expert.
Is it legal to tow a trailer without electric brakes?
If your trailer weighs more than 1500 pounds, it is required by law to have electric brakes in most states. However, laws may differ depending on your location, so check your state’s regulations before towing.
Conclusion
By following this guide and using the 6 pin trailer brake wiring diagram, you can easily install a brake system for your trailer. Make sure to follow safety precautions and check the system regularly to ensure it is working correctly. Happy towing!
