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Troubleshooting Trailer 7-Way With Only 6 Wires on 2003 Hudson Trailer

Question:

I only have 6 wires and I have a 7 RV blade adapter that is on the trailer I have no white wire can you send me a wiring diagram without a white wire the trailer I have is a 16ft 2003 hudson trailer hse16 I got the same plug took it apart and forgot how to wire it back together everything is original from the factory

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Expert Reply:

There are flags going up as soon as you say there is no white wire, because white is traditionally the ground and you absolutely will need a ground for everything to work. So, you will need to determine function based on location and not on color. You can use a battery to test each wire for function so you will connect that wire to the correct location. I've attached an article to assist as you requested. The missing wire is most likely the reverse/auxiliary wire on your 2003 Hudson Trailer.

If you have any functions not working with the battery, I recommend using a circuit tester like # PTW2993 to test for connection every few feet to track down any short in wire so you can replace it.

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