RV dealer messed up wiring...
The time had come for me to test hooking up my car to the trailer after I upgraded the house batteries and installed my big inverter. When I bought the trailer, I also bought a brake controller, 7-...
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They were counting on the ground you get through the hitch and trailer tongue for the return path. If you plug in but do not hitch up, no heavy duty ground path between the vehicle and trailer.
Jim
Jim
