Holding Tank Wiring - Test wires
Most of the bottom of my Arctic Fox trailer is covered in cloroplast, a material somewhat like plastic corrugated cardboard, which holds the insulation in the bottom of the trailer. I have 4 wires ex...
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I would suggest to check the white wire for continuity to ground. You could then measure resistance from the other individual wires to the ground wire. While you're about that, you may wish to power a turn signal and see if there is voltage on any of the colored wires. It is almost too much of a coincidence that the mfg would use a trailer harness standard for tank wiring.
