Forum Discussion
Chad_Jen
May 14, 2018Explorer
bobndot wrote:
Might be a ground issue on the trailer. Unplug the trailer and put a tester on the 7 way plug on the truck to see if you have power at those pins. If so, its the TT and probably a ground.
If it's a ground problem (with either the truck to TT) why would they work if I turned the knob to on but didn't if I left it in Auto? I'd think they'd either work all the time or none of it.
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