My 2014 is driving me nuts. 3500 Longhorn dually. Over a month ago I had the Abs light come on. I checked with my scan tool & found both rear wheel sensors were the problem. I replaced them with mopar originals & reset the code. That lasted 2 days before the code came back. I can see the 4 sensors speed ok one minute then the right rear one goes out. I have had all 4 go NA while watching the scanner while I drive. The scanner also disconnects from the Abs controller as it is not there. Last weekend it went out by itself then my Speedo screen went all goofy. The Abs lit up again & the Speedo returned to normal. I have had canbus errors while this has been going on as well. Currently I can't reset the Abs as it just stays on. I have checked the wiring & I am baffled. I thought it could be a bad ecu. The truck is deleted & I get errors for the def tank. Any ideas? Thanks

 

I finally replaced the ABS controller & block. Bled all the lines & had the controller flashed. All is well now.

 

Just had to have my ABS controller changed along with the hydraulic unit on my 2018 with 13k miles on it. Lots of goofy electronic problems before and now they all seem to be resolved. Hopefully it won’t happen again.

 

I am having these same issues but I find that if stopped and I press the pedal to the floor everything returns to normal and the ABS light goes off. Thinking there might be something in the pump bad relating to pressure? Don’t really want to go to the dealership unless I absolutely have to. Will have to return from Mexico to have it fixed.

 

My ABS light just started to come on when I first start up, and stays on for a while, anywhere from 1 to 10 miles then goes off and stays off.

A fellow Dodge owner suggests I pull all 4 wheels and check for debris in, on or around the sensors.

Any ideas?