Understanding how to wire a 7 way plug is essential for any DIY-ers looking to complete a trailer wiring project. Whether you are wiring a trailer for the first time or upgrading your trailer, this guide will provide you with all the information you need to get the job done.
What is a 7 Way Plug?
A 7 way plug is a trailer wiring connector that is commonly found on larger trailers and semi-trucks. It has seven pins that attach to specific electrical functions and allow the trailer to operate properly. It is important to connect the correct wires to the correct pins in order for the trailer to function properly.
Understanding the Wiring Diagram
Before beginning to wire your 7 way plug, you must understand the wiring diagram. Each wire should be clearly labeled and connected to the corresponding pin. It is important to note that the colors of the wires may vary between manufacturers. However, the most common colors are white, black, yellow, green, brown, and blue.
Steps to Wiring a 7 Way Plug
1. Start by connecting the white wire to the pin labeled “ground.” 2. Connect the yellow wire to the pin labeled “auxiliary.” This pin is typically used to power trailer brakes. 3. Connect the green wire to the pin labeled “right turn” and the brown wire to the pin labeled “left turn.” 4. Connect the blue wire to the pin labeled “reverse.” This pin is typically used to power trailer brakes. 5. Connect the black wire to the pin labeled “battery.” This pin is typically used to power the trailer lights.
Conclusion
Wiring a 7 way plug is not a difficult task, but it is important to take the time to understand the wiring diagram and connect the correct wires to the corresponding pins. With a little patience and attention to detail, you should have no problem wiring the 7 way plug and getting your trailer up and running in no time.
