RAM ABS Code C0020-01 FIX!!! on 2017 5500 

Man, you are my hero for the year! On my 2018 2500 RAM Diesel I have lived with the ding, ding, ding and cruise control turning off for about 3 years now. I knew it was an electrical contact problem by the symptoms and code in the OBD (jarring the motor during driving and "ABS pump motor general failure"). I have researched how to fix this for 2 years and your video is the only one I found that truly addressed my problem. Using feeler gauges to separate the pistons during re-assembly is JUST PURE GENIUS. I had to sand both the broad side and narrow side as my one sticky brush as it was binding top to bottom. The other brush had plenty of slop and moved freely. By the way, the brushes seem to be Graphite-Copper composition, therefore no lubrication needed because of the graphite. Thanks.

Exactly what it was on my 2018. Tapped the motor when running. Light out. I'll disassemble when time. Thanks bud. Hell of a diagnosis.

Well done! If that is not The issue, it is definitely one of the issues. My 2018 3500 is doing the same thing. I will talk to Ram first but I don't hold much hope. Thanks!

Thank you so much for figuring this out! I could say you saved me a lot of money..... and that would be true, but a replacement ABS module is not even available. I was able to remove the motor without disconnecting any of the brake lines! I then opened the motor (it just slides apart) found that one brush was stuck and causing my Ding Ding Ding. Instead of pulling the brushes out though, I used a Dremel with very small carbide bit to remove the single little piece of metal over the top of the brush holder. I then spread the brush holder (just a very small amount) and the brush snapped forward! made sure it would move freely and tested the motor. Spins like a champ and put it back in the module. Fired it up and all good. Been driving it for a couple of days with no more issues! Getting the motor back into the hole with the two plungers was going to be an issue I though, but your feeler gauge method worked perfect! Thanks again!

I did mine today. Went ride around hitting bumps and pressing the brakes hard sometimes to see if it would kick back on but never did. I’ll do and update in about a week or two. Thanks Cheeseman1!!! One of my bushing was fairly moving and the other was really hard to even get it out to sand it down. I’m more than certain that was the problem. I did it one the truck without taking it off. It was hard to get it back in but was well worth it. I definitely did not want to bleed the brakes.

Did mine today and it fixed mine. Mine was older and took a minute to separate. I couldn’t use air but pried a flat head under the three tabs slowly to separate. Also putting back together you may need to lube that gaskets. Great video and it helped me. I had one side ticking and was able to put it back in without removing the HCU by my self. It takes a min to line the shims up and get it in. Take the tire off becuase you will get frustrated. The little extra room is worth it. I used 5 minute epoxy to resecure the slide holders in. Make sure you don’t get epoxy in the winding or in the slot holder to prevent it from moving. Wasn’t a bad job and no more lights. Thanks for the video it was very helpful.

Fixed mine. Thanks!

I just dealt with Chrysler Fiat today and was told so sorry, we aren’t going to help you. Because you see it is NOT A SAFETY ISSUE, they will not recall this. Since I haul a 16k pound 5th wheel with my almost 9k pound 2018 Ram 3500, I struggle with this not being a safety issue. Not sure what to do next but they don't care. Leaving it to be dealt with by the lucky owners.

Great tip !!!!

Thank you so much!

Awesome video. I have a 1500 with the exact same symptoms. I'm certain is the same motor issue so I'd like to remove it and perform this repair. The problem is on the 1500, the motor is attached completely different to the HCU rather than the two screws. It also looks like some of the lines might be in the way. This repair is all over the heavy duty forums, but I can't find anything specifically for the half tons other than replacing the whole assembly. As anyone attempted this repair on a 1500?

Hello Clint, I watched your video and I found it very interesting, I have a 2018 RAM 2500 diesel with the same problem in the video and I followed the instructions you indicate and I had the same problem with the brushes. I'm going to mount it to see how it turns out, was the problem completely corrected on yours???

great video , thank you do you need to disconnect brake lines or bleed the system after it goes back together since its the brake system

Great video. Thank you. Is it possible to pull this motor off without removing the whole assembly/lines from the truck?

I wonder if you can put power to the ABS connection on the motor to see if it works after you sanded the brushs ??

Did you have to do a computer brake bleed when you put the module back in or only bleed from the calipers?

Friend, how can I contact you to ask you a question? I have the same problem.

Everything still good on it?

Did mine was off for 2 days then came right back on

How you get that cover off

Made in CHINA