When it comes to towing a trailer, one of the most important things to consider is the electrical system. A major component of that system is the trailer plug, which allows the trailer to connect to the vehicle and access its power. There are several types of trailer plugs available, but one of the most common is the 5 way flat plug. In this article, we’ll take a detailed look at the 5 way flat trailer plug wiring diagram and how to properly wire it for your trailer.
What is a 5 Way Flat Trailer Plug?
A 5 way flat trailer plug is a connector that allows for the transfer of power between a vehicle and a trailer. It is called a “5 way” plug because it has five pins or wires. The flat design of the plug allows for easy connectivity and is commonly used on smaller trailers that require basic lighting and electrical functions.
What are the Five Pins or Wires in a 5 Way Flat Trailer Plug?
The five pins or wires in a 5 way flat trailer plug are as follows:
| Pin or Wire | Color | Function |
|---|---|---|
| 1 | Brown | Taillights |
| 2 | Yellow | Left Turn/Brake Lights |
| 3 | Green | Right Turn/Brake Lights |
| 4 | White | Ground |
| 5 | Blue | Electric Brakes |
How to Wire a 5 Way Flat Trailer Plug?
Wiring a 5 way flat trailer plug is a simple process as long as you follow the correct wiring diagram. Here is a step-by-step guide to wiring a 5 way flat trailer plug:
Step 1: Gather Materials
Before you begin, make sure you have all the necessary materials, including a 5 way flat trailer plug, wire cutters, wire strippers, and electrical tape.
Step 2: Strip the Wires
Start by stripping the insulation off the wires about half an inch from the end. This will expose the bare wire, which you will use to connect to the pins on the trailer plug.
Step 3: Connect the Wires to the Pins on the Trailer Plug
Next, connect the wires to the pins on the trailer plug according to the wiring diagram. The brown wire should connect to pin 1, the yellow wire to pin 2, the green wire to pin 3, the white wire to pin 4, and the blue wire to pin 5.
Step 4: Secure the Wires
After the wires are connected, use electrical tape to secure them in place and protect them from the elements.
Step 5: Test the Connection
Once you have completed the wiring, test the connection to ensure that all of the lights and electrical functions are working properly.
FAQs
What is the Purpose of a Ground Wire?
The ground wire provides a direct path for electrical current to flow back to the vehicle battery. This helps prevent electrical shorts and ensures that all of the electrical components on the trailer are properly grounded.
Can I Use a 5 Way Flat Trailer Plug on a Larger Trailer?
A 5 way flat trailer plug is typically only used on smaller trailers that require basic lighting and electrical functions. For larger trailers, you will need to use a different type of trailer plug, such as a 7 way round or a 6 way square.
What is the Electric Brakes Wire Used For?
The electric brakes wire is used to connect the trailer’s electric brakes to the vehicle’s braking system. When the vehicle brakes are applied, the electric brakes on the trailer will also engage, helping to slow down the trailer and prevent it from swaying or jackknifing.
Do I Need to Use a Trailer Plug Adapter?
If your vehicle has a different type of trailer plug than your trailer, you may need to use a trailer plug adapter. These adapters are designed to allow you to connect different types of plugs together, ensuring that your trailer has access to the necessary power and functions.
Can I Wire a 5 Way Flat Trailer Plug Myself?
Wiring a 5 way flat trailer plug is a simple process that can be done by anyone with basic electrical knowledge. However, if you are not comfortable working with electrical wiring, it is recommended that you seek the assistance of a professional.
By following the correct wiring diagram and taking the time to properly wire your 5 way flat trailer plug, you can ensure that your trailer has access to all of the necessary electrical functions and lighting. This will make towing your trailer safer and more efficient, allowing you to enjoy your time on the road with peace of mind.
