When it comes to towing a trailer, it is important to make sure that it is connected properly. This can be done by ensuring that the wiring is done correctly. In Australia, a 7 pin trailer plug is commonly used as it can handle various types of trailers. In this article, we will discuss the proper wiring diagram for a 7 pin trailer plug in Australia.
The 7 Pin Trailer Plug
The 7 pin trailer plug consists of seven pins that correspond to different functions. These pins are arranged in a circular pattern and are numbered clockwise from 1 to 7. The pins are:
| Pin Number | Function |
|---|---|
| 1 | Left indicator |
| 2 | Reverse light |
| 3 | Earth/ground |
| 4 | Right indicator |
| 5 | Electric brake |
| 6 | Tail light |
| 7 | Battery charge |
Pin 1 – Left Indicator
Pin 1 is used for the left indicator. The left indicator is generally located on the left-hand side of the trailer and is used to signal when the vehicle is turning left. The left indicator is usually an amber light.
The wire that corresponds to Pin 1 is usually coloured yellow. This wire should be connected to the left indicator on the trailer.
It is important to make sure that the left indicator on the trailer is working properly. This can be done by checking that the light turns on when the left indicator on the vehicle is activated.
Pin 2 – Reverse Light
Pin 2 is used for the reverse light. The reverse light is located at the back of the trailer and is used to signal when the vehicle is reversing. The reverse light is usually a white light.
The wire that corresponds to Pin 2 is usually coloured green. This wire should be connected to the reverse light on the trailer.
It is important to make sure that the reverse light on the trailer is working properly. This can be done by checking that the light turns on when the vehicle is put into reverse gear.
Pin 3 – Earth/Ground
Pin 3 is used for the earth/ground. The earth/ground is used to provide a return path for electrical circuits. This helps to prevent electrical problems such as short circuits.
The wire that corresponds to Pin 3 is usually coloured white. This wire should be connected to the earth/ground on the trailer.
It is important to make sure that the earth/ground on the trailer is working properly. This can be done by checking that there are no electrical problems such as short circuits.
Pin 4 – Right Indicator
Pin 4 is used for the right indicator. The right indicator is generally located on the right-hand side of the trailer and is used to signal when the vehicle is turning right. The right indicator is usually a red light.
The wire that corresponds to Pin 4 is usually coloured brown. This wire should be connected to the right indicator on the trailer.
It is important to make sure that the right indicator on the trailer is working properly. This can be done by checking that the light turns on when the right indicator on the vehicle is activated.
Pin 5 – Electric Brake
Pin 5 is used for the electric brake. The electric brake is used to slow down or stop the trailer when the vehicle is braking. This is especially important when towing heavy loads.
The wire that corresponds to Pin 5 is usually coloured blue. This wire should be connected to the electric brake on the trailer.
It is important to make sure that the electric brake on the trailer is working properly. This can be done by checking that the trailer brakes are activated when the vehicle brakes are applied.
FAQ
Q: What is a 7 pin trailer plug?
A: A 7 pin trailer plug is a type of connector that is used to connect a trailer to a vehicle. It consists of seven pins that correspond to different functions.
Q: Why is it important to wire a trailer correctly?
A: It is important to wire a trailer correctly to ensure that it is connected properly and that it functions correctly. This can help to prevent accidents and ensure that the trailer is safe to tow.
Q: What is the electric brake used for?
A: The electric brake is used to slow down or stop the trailer when the vehicle is braking. This is especially important when towing heavy loads.
