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Old 10-11-2016, 09:02 AM   #1
Junior Member
Join Date: Oct 2016
Posts: 2
RAM brake controllers and shifting

I have a 2016 RAM 2500 Hemi 6.4 and left from Florida to go to Alaska with a 13,000 lb. fifth-wheel. Started having problems in Ohio with shifting and from 6 to second up and down hill going 50 mph. Had it reprogrammed in Springfield.

In Illinois traveling at 65 mph got a dash message to check trailer wiring and then a message that trailer was unplugged. I had no brakes on the trailer and stopped and cleaned the plug. It worked for about fifty miles and it happed again. Got a new brake controller in Des Moines IA had new brake controller put on. It failed in one thousand yards. Took it and trailer back to dodge in Des Moines and they said it was the trailer.

Took the trailer to a authorized dealer and they checked the trailer including pulling it with another truck and said there was nothing wrong.

Took it to another Dodge dealer and they said there was nothing wring with the truck.

Put a aftermarket brake controller on and it failed in a few hundred miles. Prodigy said there was a short or possibly something wrong with the voltage coming from the truck to the controller.

Got another RAM brake controller put on in Montana and it failed in about six hundred miles. By this time we were on our way back to Florida scared out our minds.

Daytona Dodge took it for test drive (without a trailer) and said there is nothing wrong with the truck and they have no record of the other service because it was performed out of state.

Has anyone else had any similar problems or suggestions of where I go from here. By the way I not only have pictures but video of these messages while driving.


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Old 10-11-2016, 09:15 AM   #2
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450Donn's Avatar
Join Date: Jun 2006
Location: Dallas,OR
Posts: 2,691
A bad ground could certainally cause what your describing. My guess you have some chaffed wires someplace. It is going to take a lot of time (and money) to pinpoint the problem. Do you have access to another truck to tow with to prove out which side the problem is? I guess the first thing I would do is, start at the plugs with a volt meter. Disconnect the trailer battery and stsrt checking everything to ground. It is quite possible a cat whisker (stray wire strand) is touching inside one of the plugs.

Don and Lorri
2007 Dodge 3500 dually
Resident Dummy.
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Old 10-11-2016, 09:32 AM   #3
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Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 30,316
Hi ! Welcome to IRV2! We're sure glad you joined the gang!

Back when we were pulling a 5er I had the same problem, but I can't remember what we found! Keep her between the ditches!

Good luck, happy trails, and God bless!
Joe & Annette

2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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