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re: Pulled the wiring harness from my fifth wheel
Posted on 4/8/24 at 11:23 am to DownshiftAndFloorIt
Posted on 4/8/24 at 11:23 am to DownshiftAndFloorIt
quote:
DownshiftAndFloorIt
I did somewhat that to identify which wires were to what lights. Jumped a wire from a 12v battery to each wire and then see what operated. None of the white wires or blue wires operated anything lights wise. That’s where I assumed the white wires were ground/negative and the remaining blue were the brakes.
To my understanding there should only be one wire controlling the brakes. I haven’t tested the white wires to the brakes so it may be possible that one of the white wires is actually the brake control wire but that still leaves me an odd ball blue wire that goes to something.
This post was edited on 4/8/24 at 11:26 am
1
Posted on 4/8/24 at 1:09 pm to GAFF
quote:
To my understanding
I'm trying to help. Kust go do what I said to do. It will lead you to the issue. Electricity has to get from the brake apply pin in the plug, to the brake actuator, to the frame, and back to the ground pin on the plug. Thinking hard about how this should work will take you much more time than following the steps to figure out why it doesn't. Simple continuity checks are basically all there is to DC troubleshooting.
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