(PICTURES) 7 Way Wiring diagram for RV trailer plug

7-Way Wiring diagram for RV trailer plug.


When wiring an RV trailer connector, it is best to wire by color function, as wire colors can vary. Here is a 7 Way Wiring diagram for the RV trailer plug hope this will help you.

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If you are looking at the inside of the trailer connector where the wires mount to the terminals starting at the top and rotating clockwise:

1:00 is a Black and 12-volt power
3:00 is Green and Right Turn and Brake
5:00 is Blue and Brake Controller
7:00 is White and Ground
9:00 is Yellow and Left Turn and Brake
11:00 is Brown and Tail and Running Lights
The Center is Purple and is Optional Reverse

I attached a picture that shows how the connector should be wired.

Way Wiring diagram for RV trailer plug
Way Wiring diagram for RV trailer plug

What are the 7 wires on my trailer plug?

  • Standard 7-way Connector. Function. Usual Trailer Wire.
  • White Wire. Ground. White Wire.
  • Red Wire. Left Turn and Brake. Yellow Wire.
  • Brown Wire. Right Turn and Brake. Green Wire.
  • Green Wire. Tail Lights. Brown Wire.
  • Blue Wire. Brake Power. Blue Wire.
  • Black Wire. 12 volt (hot lead) Black Wire.
  • Yellow Wire. Aux.

How many amps does a 7-pin trailer plug?

The battery charge circuit in your 7-pin is capable of 40 amps per the manual.

Are all 7-way blade connectors the same?

Yes, there is only one type of 7-way blade connector. I am attaching a helpful article about wiring that may interest you.

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