If you own a trailer, then you know how important it is to have your wiring done correctly. The wiring system for trailers is complex and can be challenging to understand, especially if you are new to this. One of the most commonly used trailer plugs is the 5 blade trailer plug, also known as the 5-way trailer plug. In this article, we will cover everything you need to know about the 5 blade trailer plug wiring diagram.
What is a 5 Blade Trailer Plug?
The 5 blade trailer plug is a connector that is commonly used to hook up a trailer to a towing vehicle’s electrical system. The plug has five pins or blades, each of which serves a specific function. Understanding these functions is crucial in ensuring that your trailer lights work correctly and your brakes function properly.
What Do the Pins on a 5 Blade Trailer Plug Do?
The five pins on the 5 blade trailer plug have specific functions that they perform. Understanding what each pin does is essential in troubleshooting any problems you may encounter with your trailer.
| Pin Number | Color | Function |
|---|---|---|
| 1 | Brown | Taillight Circuit |
| 2 | Yellow | Left Turn/Brake Light Circuit |
| 3 | Green | Right Turn/Brake Light Circuit |
| 4 | White | Ground Wire |
| 5 | Blue | Trailer Brake Circuit |
The table above shows the functions of each pin on the 5 blade trailer plug.
How to Wire a 5 Blade Trailer Plug
Wiring a 5 blade trailer plug is not a difficult task, but it does require some basic knowledge of electrical wiring. Before you start wiring your trailer, make sure you have the right tools for the job.
Tools You Will Need
Here are the tools you will need to wire a 5 blade trailer plug:
- Wire Strippers
- Crimping Tool
- Screwdriver
- Voltage Tester
- Electrical Tape
Steps to Follow
Here are the steps to follow when wiring your 5 blade trailer plug:
- Start by disconnecting the trailer from the towing vehicle.
- Strip the wires to expose about 1/2 inch of the copper wire.
- Insert each wire into the corresponding pin on the 5 blade trailer plug.
- Crimp the wires onto the pins using the crimping tool.
- Use the screwdriver to tighten the screws on the plug to secure the wires.
- Use the voltage tester to check the wiring and ensure that each pin is working correctly.
- Wrap the wires with electrical tape for added protection.
- Reconnect the trailer to the towing vehicle.
FAQs
1. What is the difference between a 4 and 5 blade trailer plug?
The primary difference between a 4 and 5 blade trailer plug is the number of pins or blades. A 4 blade trailer plug has four pins, while a 5 blade trailer plug has five pins. The extra pin on the 5 blade plug is used for the trailer brake circuit.
2. What do I do if my trailer lights are not working?
If your trailer lights are not working, start by checking the wiring and connections. Make sure that the wiring is properly connected to the 5 blade trailer plug and that each pin is functioning correctly. Use a voltage tester to check for continuity and ensure that each pin is getting the right voltage. If you cannot find the problem, consult a professional.
3. Can I wire my 5 blade trailer plug myself?
Yes, you can wire your 5 blade trailer plug yourself if you have basic knowledge of electrical wiring. Make sure you have the right tools and follow the steps outlined above. If you are not confident in your abilities, consult a professional.
4. What happens if I wire my 5 blade trailer plug incorrectly?
If you wire your 5 blade trailer plug incorrectly, your trailer lights may not work correctly, and your brakes may not function properly. This can be dangerous and can result in accidents. Always ensure that your wiring is done correctly and test your lights and brakes before hitting the road.
5. Can I use a 5 blade trailer plug with a 4 blade towing vehicle?
No, you cannot use a 5 blade trailer plug with a 4 blade towing vehicle. The two are not compatible, and you will need to use a 4 blade trailer plug instead. Make sure you have the right plug for your vehicle and trailer before wiring your trailer.
Final Thoughts
Understanding the wiring diagram for your 5 blade trailer plug is crucial in ensuring that your trailer lights work correctly and your brakes function properly. Always make sure that your wiring is done correctly and test your lights and brakes before hitting the road. If you are not confident in your wiring abilities, consult a professional.
