As an RV owner, you must be familiar with the 7 blade RV connector. This connector is used to connect the tow vehicle to the trailer and transfer electricity from the vehicle to the trailer. In this article, we will discuss the wiring diagram of the 7 blade RV connector in detail.
Wiring Diagram
The 7 blade RV connector wiring diagram consists of seven pins, each with a different function. These pins are labeled as follows:
| Pin | Function |
|---|---|
| 1 | Ground |
| 2 | Left turn/stop |
| 3 | Taillight |
| 4 | Battery |
| 5 | Right turn/stop |
| 6 | Electric brake |
| 7 | Auxiliary |
Now, let’s take a closer look at each pin and its function.
Pin 1: Ground
Pin 1 is used for ground. It is connected to the ground wire of the tow vehicle and the trailer. This pin ensures that the trailer and tow vehicle have the same reference point for electrical signals.
Pin 2: Left Turn/Stop
Pin 2 is used for the left turn signal and brake light. When the driver activates the left turn signal or applies the brakes, a signal is sent through this pin to the trailer’s left turn signal and brake lights.
Pin 3: Taillight
Pin 3 is used for the taillights. It supplies power to the trailer’s taillights, allowing them to illuminate when the tow vehicle’s headlights are turned on.
Pin 4: Battery
Pin 4 provides power to the trailer’s battery. This allows the battery to be charged while the vehicle is in motion.
Pin 5: Right Turn/Stop
Pin 5 is used for the right turn signal and brake light. When the driver activates the right turn signal or applies the brakes, a signal is sent through this pin to the trailer’s right turn signal and brake lights.
Pin 6: Electric Brake
Pin 6 is used for the trailer’s electric brakes. It supplies power to the brake controller, which then sends a signal to the trailer’s brakes to activate them.
Pin 7: Auxiliary
Pin 7 is used for auxiliary functions such as backup lights, surge brake lockout, or charging a trailer battery in a camper or trailer. This pin can be used for various other functions as well.
FAQ
What is an RV 7 blade connector?
An RV 7 blade connector is a type of electrical connector used to connect a tow vehicle to a trailer. It has seven pins, each with a specific function, such as ground, brake lights, and electric brakes.
How do I wire a 7 blade RV connector?
To wire a 7 blade RV connector, follow the wiring diagram provided with the connector. Connect each wire to its corresponding pin. Typically, the ground wire is connected to pin 1, the left turn signal and brake light to pin 2, the taillights to pin 3, the battery to pin 4, the right turn signal and brake light to pin 5, the electric brake to pin 6, and the auxiliary function to pin 7.
What is the difference between a 7 blade and 4 blade connector?
The main difference between a 7 blade and 4 blade connector is the number of pins. A 4 blade connector has four pins, while a 7 blade connector has seven pins. A 7 blade connector is typically used on larger trailers that require more electrical functions.
Can I use a 7 blade connector on a 4 blade trailer?
It is possible to use a 7 blade connector on a 4 blade trailer, but it will require an adapter. The adapter will convert the 7 blade connector to a 4 blade connector, allowing it to be plugged into the trailer.
What should I do if my 7 blade RV connector is not working?
If your 7 blade RV connector is not working, first check the wiring to ensure that all connections are secure and intact. Check the fuses and relays to ensure that they are not blown. It is also a good idea to check the tow vehicle’s electrical system to make sure that it is functioning properly.
In conclusion, the 7 blade RV connector is an important component for towing a trailer with an RV. Make sure to properly wire the connector according to the wiring diagram provided, and check it regularly to ensure that it is functioning properly.
