When it comes to trailer wiring, one of the most important things you should know is the 7 blade trailer plug wiring diagram. This wiring diagram is essential in understanding how to wire your trailer properly, and it’s important for ensuring that your trailer lights work correctly.
What is a 7 Blade Trailer Plug Wiring Diagram?
A 7 blade trailer plug wiring diagram is a visual representation of the electrical connections that need to be made to connect your trailer to your vehicle. Each blade represents a specific function, such as running lights, turn signals, and brake lights. Understanding the wiring diagram is essential for ensuring that your trailer lights work properly and ensuring safety on the road.
The Function of Each Blade
The 7 blades on a trailer plug each serve a specific function. Here’s a breakdown of what each blade is used for:
| Blade | Function |
|---|---|
| 1 | Ground |
| 2 | Left Turn/Brake |
| 3 | Right Turn/Brake |
| 4 | Taillights |
| 5 | Electric Brake |
| 6 | Backup Lights |
| 7 | Auxiliary |
How to Wire a 7 Blade Trailer Plug
Wiring a 7 blade trailer plug is a straightforward process, but it’s important to follow the wiring diagram to ensure that everything is wired correctly. Here’s a step-by-step guide:
Step 1: Gather the Required Tools
You’ll need a few tools to wire a 7 blade trailer plug, including wire cutters, wire strippers, a crimping tool, and electrical tape.
Step 2: Identify the Wires
The first step is to identify the wires on your trailer. You’ll need to determine which wires are for the running lights, turn signals, brake lights, etc.
Step 3: Strip the Wires
Once you’ve identified the wires, use wire strippers to strip about ½ inch of insulation off the end of each wire.
Step 4: Connect the Wires to the Plug
Using the wiring diagram as a guide, connect each wire to the appropriate blade on the 7 blade trailer plug. Use a crimping tool to secure each wire to the plug.
Step 5: Test the Lights
Once you’ve wired the plug, test the lights to make sure they’re working properly. If something isn’t working, double-check the wiring connections.
FAQ
What is the difference between a 4 pin and a 7 pin trailer plug?
A 4 pin trailer plug is typically used for trailers with fewer electrical components, such as basic utility trailers. A 7 pin trailer plug is used for larger trailers that have more electrical components, such as electric brakes and backup lights.
Do I need special tools to wire a 7 blade trailer plug?
You’ll need a few basic tools, such as wire cutters and wire strippers, as well as a crimping tool and electrical tape. These tools are readily available at most automotive and hardware stores.
What happens if I wire my trailer plug incorrectly?
If you wire your trailer plug incorrectly, the lights on your trailer may not work properly. This can be dangerous, as it can make it difficult for other drivers to see your trailer when you’re on the road.
Can I wire my trailer plug myself?
Wiring a trailer plug is a relatively simple process, but if you’re not comfortable working with electrical wiring, it’s best to have a professional do the job.
Is a 7 blade trailer plug the only type of trailer plug?
No, there are several types of trailer plugs, including 4 blade, 5 blade, and 6 blade plugs. The type of plug you need will depend on the size and electrical components of your trailer.
Understanding the 7 blade trailer plug wiring diagram is essential for ensuring that your trailer lights work properly and for ensuring safety on the road. By following the wiring diagram and using the proper tools, you can easily wire your trailer plug and ensure that it’s functioning correctly.
