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re: Pulled the wiring harness from my fifth wheel
Posted on 4/8/24 at 7:51 am to DownshiftAndFloorIt
Posted on 4/8/24 at 7:51 am to DownshiftAndFloorIt
quote:
Make a jumper to jump whatever pin to ground in the plug and check for continuity on the other end to see what pin the wires go to in the plug.
Explain this a little more please. You’re saying make a jumper and attach one end to a pin of the rv’s 7 pin hook up and attach the other end to a ground (trailer frame?) then test for continuity? How would I test for continuity this way?
1
Posted on 4/8/24 at 8:32 am to GAFF
Just a short piece of wire would probably work. Jump for instance the power pin to the ground pin in the trailer connecter, and then you can check ohms at the other end of a wire that you suspect is power. Check between the wire end and the frame, it'll either be opened or closed. If it's closed, you know that wire ends up on the power pin in the connector. Make sure you unhook the breakaway battery and any other batteries on the trailer first.
Don't take this the wrong way- you should read up on DC circuit troubleshooting. The first thing to do is identify what wires go where at the connector. Jacket color is largely meaningless with trailers, you never know what the dudes at the store did with it.
Don't take this the wrong way- you should read up on DC circuit troubleshooting. The first thing to do is identify what wires go where at the connector. Jacket color is largely meaningless with trailers, you never know what the dudes at the store did with it.
This post was edited on 4/8/24 at 8:34 am
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