When my controller flashed, it was the ground issue. I found 2 things. The main chassis ground was not a great ground so I stripped the paint to bare metal, reattached the chassis ground and coated it with protectant and undercoating spray. The second issue was the pin connector from controller to motor had a recessed ground pin that did not make good contact. I pulled it apart, lengthened the pin with needle nose pliers and carefully reconnected it. Have not had and controller errors since.
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2017 Thor Challenger 37LX, Westward interior, Riverside paint job. Upgraded to 4 battery setup, Splendide 2100XC Washer/Dryer combo, Progressive Industries HW50 EMS, Heavy Duty Steering stabilizer, and TST TPMS 6+4 setup for tow vehicle . Member FMCA
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