FYI: comm error means, Communication between controller and touch pad has been lost. Remedy states: Check harness for proper connections or damage. Replace if necessary.
personally I've never had this error. The only error I've had required a recalibration of my 6 point leveling system.
I would try unhooking the battery first to see if it resets, then check connections.
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2019 Ram Laramie Crew cab 3500 DRW LB
Cummins Turbo Diesel
2019 Montana High Country 378RD
B&W Companion Hitch / Furion rear camara
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