When it comes to towing a trailer, it is important to have a proper electrical connection between the tow vehicle and the trailer. The 7 blade RV plug is a common type of connector used for this purpose. In this article, we will discuss the wiring diagram for a 7 blade RV plug, how to wire it correctly, and the frequently asked questions related to this topic.
Wiring Diagram for a 7 Blade RV Plug
A seven blade RV plug wiring diagram is the diagram that shows the correct wiring for all seven pins of the RV plug. Each pin has a different function and is color-coded accordingly. Here is the wiring diagram for a 7 blade RV plug:
| Pin | Function | Wire Color |
|---|---|---|
| 1 | Ground | White |
| 2 | Left Turn and Brake | Yellow |
| 3 | Ground | Green |
| 4 | Right Turn and Brake | Brown |
| 5 | Ground | Blue |
| 6 | Brake Controller | Red |
| 7 | 12 Volt Power | Black |
It is important to note that different manufacturers may have slightly different wiring diagrams for a 7 blade RV plug. Therefore, it is always a good idea to refer to the wiring diagram provided by the manufacturer of the plug or the trailer.
Pin 1: Ground
The first pin of the 7 blade RV plug is the ground pin. It is used to connect the ground of the tow vehicle to the ground of the trailer. The wire color for this pin is white.
It is important to ensure that this pin is properly grounded to prevent any electrical issues that may occur while towing.
Pin 2: Left Turn and Brake
The second pin of the 7 blade RV plug is used for the left turn signal and brake lights of the trailer. The wire color for this pin is yellow.
When the left turn signal is activated on the tow vehicle, the left turn signal and brake lights of the trailer should also activate. Similarly, when the brake pedal is pressed on the tow vehicle, the brake lights of the trailer should also activate.
Pin 3: Ground
The third pin of the 7 blade RV plug is another ground pin. It is used to connect the ground of the tow vehicle to the ground of the trailer. The wire color for this pin is green.
It is important to ensure that this pin is properly grounded to prevent any electrical issues that may occur while towing.
Pin 4: Right Turn and Brake
The fourth pin of the 7 blade RV plug is used for the right turn signal and brake lights of the trailer. The wire color for this pin is brown.
When the right turn signal is activated on the tow vehicle, the right turn signal and brake lights of the trailer should also activate. Similarly, when the brake pedal is pressed on the tow vehicle, the brake lights of the trailer should also activate.
Pin 5: Ground
The fifth pin of the 7 blade RV plug is another ground pin. It is used to connect the ground of the tow vehicle to the ground of the trailer. The wire color for this pin is blue.
It is important to ensure that this pin is properly grounded to prevent any electrical issues that may occur while towing.
Pin 6: Brake Controller
The sixth pin of the 7 blade RV plug is used for the brake controller of the trailer. The wire color for this pin is red.
The brake controller is a device that activates the brakes of the trailer when the brake pedal is pressed on the tow vehicle. It is important to ensure that the brake controller is properly installed and adjusted to prevent any issues while towing.
Pin 7: 12 Volt Power
The seventh and final pin of the 7 blade RV plug is used for the 12 volt power supply of the trailer. The wire color for this pin is black.
This pin can be used to power the interior lights, fans, or other devices in the trailer that require 12 volt power. It is important to ensure that this pin is connected properly to prevent any electrical issues that may occur while towing.
How to Wire a 7 Blade RV Plug Correctly
Wiring a 7 blade RV plug correctly is important to ensure that the electrical connection between the tow vehicle and the trailer is strong and reliable. Here are the steps to wire a 7 blade RV plug correctly:
- Gather the necessary tools and materials, including a 7 blade RV plug, wire cutters, wire strippers, and electrical tape.
- Strip the insulation off the wires to expose the bare copper wire.
- Connect the wires to the correct pins on the 7 blade RV plug according to the wiring diagram provided by the manufacturer.
- Secure the wires in place using electrical tape.
- Test the electrical connection between the tow vehicle and the trailer to ensure that everything is working properly.
FAQ – Frequently Asked Questions
What is a 7 blade RV plug?
A 7 blade RV plug is a type of electrical connector used to connect the tow vehicle to the trailer. It has seven pins that correspond to different electrical functions, such as turn signals, brake lights, and 12 volt power.
What is the difference between a 4 pin and a 7 blade RV plug?
A 4 pin RV plug has four pins that correspond to the basic electrical functions of the trailer, such as the left turn signal and brake lights. A 7 blade RV plug has seven pins that correspond to more advanced electrical functions, such as the brake controller and 12 volt power supply.
What wire color is used for the 12 volt power supply in a 7 blade RV plug?
The wire color for the 12 volt power supply in a 7 blade RV plug is black.
What is a brake controller?
A brake controller is a device that activates the brakes of the trailer when the brake pedal is pressed on the tow vehicle. It is important to ensure that the brake controller is properly installed and adjusted to prevent any issues while towing.
Why is it important to ground the 7 blade RV plug?
Grounding the 7 blade RV plug is important to prevent any electrical issues that may occur while towing. It ensures that the electrical connection between the tow vehicle and the trailer is strong and reliable.
What is the correct wiring diagram for a 7 blade RV plug?
The correct wiring diagram for a 7 blade RV plug may vary slightly depending on the manufacturer of the plug or the trailer. However, the basic functions and corresponding wire colors should be the same. It is always a good idea to refer to the wiring diagram provided by the manufacturer of the plug or the trailer.
Conclusion
A 7 blade RV plug is an important component in towing a trailer, and it is essential to wire it correctly to ensure a strong and reliable electrical connection. By following the wiring diagram and the instructions provided in this article, you can wire a 7 blade RV plug correctly and avoid any electrical issues while towing.
