2018 ram 2500 ABS module/ Control unit

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

OP
OP
G

g711

Junior Member
Joined
Oct 20, 2019
Posts
15
Reaction score
4
Location
Florida
Ram Year
2018
Engine
Cummins 6.7
Update on this. Ended up getting the AB version of the HCU and installed it last month. The code has now returned . Could the module itself possibly be the problem? I can not find the AB version of the module anywhere
 
OP
OP
G

g711

Junior Member
Joined
Oct 20, 2019
Posts
15
Reaction score
4
Location
Florida
Ram Year
2018
Engine
Cummins 6.7
I cant imagine this hcu motor is bad as well. This is turning out to be the most problematic truck I’ve ever owned.
 
C

Choupique

Senior Member
Joined
Dec 25, 2022
Posts
260
Reaction score
372
Location
Louisiana
Ram Year
2018
Engine
Cummins
The HCU comes with a new motor, pump, valves etc. It's under the little black dome on the back side.

What faults do you currently have?
 
W

Wild one

Senior Member
Joined
Jan 17, 2016
Posts
14,059
Reaction score
24,374
Ram Year
14 Sport
Engine
5.7
I'm guessing a few of you guys haven't watched this video,it's worth watching.

www.youtube.com

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

Here is a video i made to help all you Ram owners with the dreaded abs code c0022-01. This was on a 2017 ram 5500 cummings. The complaint will be abs light a...
www.youtube.com www.youtube.com
 
OP
OP
G

g711

Junior Member
Joined
Oct 20, 2019
Posts
15
Reaction score
4
Location
Florida
Ram Year
2018
Engine
Cummins 6.7
Choupique said:
The HCU comes with a new motor, pump, valves etc. It's under the little black dome on the back side.

What faults do you currently have?
Click to expand...
I replaced the HCU with a new HCU I purchased online from a dealer. It’s the new AB version. The module is the old one I put back on the front.
 
OP
OP
G

g711

Junior Member
Joined
Oct 20, 2019
Posts
15
Reaction score
4
Location
Florida
Ram Year
2018
Engine
Cummins 6.7
The lights recently came back and it’s the same code as before saying it’s the pump. I tried doing an ABS bleed through Alfaobd and don’t even hear the pump running but it gets extremely hot to the touch.
 
OP
OP
G

g711

Junior Member
Joined
Oct 20, 2019
Posts
15
Reaction score
4
Location
Florida
Ram Year
2018
Engine
Cummins 6.7
Wild one said:
I'm guessing a few of you guys haven't watched this video,it's worth watching.

www.youtube.com

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

Here is a video i made to help all you Ram owners with the dreaded abs code c0022-01. This was on a 2017 ram 5500 cummings. The complaint will be abs light a...
www.youtube.com www.youtube.com
Click to expand...
I saw this after I had already purchased the new “improved” HCU.
 
6

62Blazer

Senior Member
Joined
Dec 11, 2019
Posts
1,090
Reaction score
1,279
Location
Midwest
Ram Year
2016
Engine
6.4
At some point in time (i.e. several ABS pumps ago) you need to realize there is something else going on here. I'm not trying to be an A-hole here or anything so don't take this wrong. But obviously there is something else wrong and you need to go further with diagnosis. I question if the part you keep replacing is even truly bad but rather is not getting the proper control signals, intermittent power feeds or grounds (bare wiring, bad connector). For example, if a wiring connector is corroded the simple act of unplugging and plugging it back in will temporarily restore the connection. But give it a few weeks or months and you lose the connection again because the corrosion comes back. If it is truly going bad something else is causing it to fail, and not that is just a bad part.
 
OP
OP
G

g711

Junior Member
Joined
Oct 20, 2019
Posts
15
Reaction score
4
Location
Florida
Ram Year
2018
Engine
Cummins 6.7
62Blazer said:
At some point in time (i.e. several ABS pumps ago) you need to realize there is something else going on here. I'm not trying to be an A-hole here or anything so don't take this wrong. But obviously there is something else wrong and you need to go further with diagnosis. I question if the part you keep replacing is even truly bad but rather is not getting the proper control signals, intermittent power feeds or grounds (bare wiring, bad connector). For example, if a wiring connector is corroded the simple act of unplugging and plugging it back in will temporarily restore the connection. But give it a few weeks or months and you lose the connection again because the corrosion comes back. If it is truly going bad something else is causing it to fail, and not that is just a bad part.
Click to expand...
Not taking anything personal here. Reason I’m frustrated is my truck has 25k miles,almost zero rust(live in Florida), and everything looks almost new. I have pulled apart the connector and everything looks good too. I’m wondering if a bad module would have any effect on the pump? I haven’t changed that part yet since I’m unable to find one. I also just attempted the ABS bleed again and it blew the 40 amp fuse. Maybe there’s a short in the motor somewhere ?
 
T

TBFRam2599

Junior Member
Joined
May 17, 2023
Posts
10
Reaction score
5
Location
No. Harpersfield Ny
Ram Year
2018
Engine
Hemi 6.4
wallacemf said:
I’d suggest sending a DM to RamCares, they may be able to expedite a solution for you. I had the HCU replaced on my 2018 2500 back in the spring. It was replaced with the newer part number ending in AB, they have been out there for a while now. I had contacted RamCares and they opened a case and had a new HCU at my dealer in a week- the dealer was shocked because they had trucks lined up for this part for months.

The current UAW strike will not help since it’s affecting the parts distribution centers, but you can get the ball rolling at least. RamCares may also be able to get you some goodwill in regards to cost as well, given you have replaced this multiple times already.
Click to expand...
Yea I just calle ran care they opened a case for me . Dealers Ben waiting 4 mo for the parts to fix mine.they have 10 other trucks that need the same parts.
 
C

Choupique

Senior Member
Joined
Dec 25, 2022
Posts
260
Reaction score
372
Location
Louisiana
Ram Year
2018
Engine
Cummins
I believe the TSB for this calls out replacing the HCU and then test driving. If the fault returns they recommend replacing the control module (the computer on the HCU). You might look it up yourself to make sure.

It also specifies specific fault codes for that troubleshooting tree.
 
OP
OP
G

g711

Junior Member
Joined
Oct 20, 2019
Posts
15
Reaction score
4
Location
Florida
Ram Year
2018
Engine
Cummins 6.7
Looked up the TSB. Looks like they say to replace the HCU. If problem still persists, replace the ECU module. That might be the fix. Problem is they are impossible to locate.
 
OP
OP
G

g711

Junior Member
Joined
Oct 20, 2019
Posts
15
Reaction score
4
Location
Florida
Ram Year
2018
Engine
Cummins 6.7
Looks like that’s going to be my best bet
 
B

bootshoff

Junior Member
Joined
Jan 20, 2024
Posts
1
Reaction score
0
Location
Pennsylvania
Ram Year
2018
Engine
6.4 gas
I've have the same issue since October the dealer did order the pump control, but the module is not available anywhere. Earliest may be June.
 
C

Choupique

Senior Member
Joined
Dec 25, 2022
Posts
260
Reaction score
372
Location
Louisiana
Ram Year
2018
Engine
Cummins
RamCares may be able to expedite one for you. You should reach out to them and see. A bunch of months with malfunctioning ABS is a serious safety concern.
 
OP
OP
G

g711

Junior Member
Joined
Oct 20, 2019
Posts
15
Reaction score
4
Location
Florida
Ram Year
2018
Engine
Cummins 6.7
So I spoke to a service guy at a dealer about it and he said I should probably wait till they figure everything out. He said even the ones that have been replaced with the updated part # have been going bad.
 
F

Fake-Account27

Senior Member
Joined
Oct 4, 2019
Posts
140
Reaction score
126
Location
Maryland
Ram Year
2018
Engine
Diesel
Mine went out in September and I was told March for a part. I searched online for new parts at least once a week and they were back in stock in late November. Only part was AA, new part is AB. So far I have not had any issues, but I have not driven it that much either.

I took apart the old motor and the springs were no longer working on one side, so in my case it was definitely the motor.

You can also try sending the motor to xemodex.com for refurbishment. Frankly, I would also recommend buying more then one part the next time they become available.
 
You must log in or register to reply here.

Similar threads

D
2018 RAM 2500 ABS problems
Replies
6
Views
3K
FNRG
F
Y
2014 RAM 1500 ABS Module seals
Replies
2
Views
527
Yogi Beer
Y
L
ABS Pump motor control failure
Replies
6
Views
873
18CrewDually
18CrewDually
BigBo956
ABS service electronic system lights
Replies
1
Views
223
Wild one
W
B
ABS Problem!!!!
Replies
2
Views
356
brc19761
B

Latest posts

Staff online

Members online

... and 4 more.
Total: 1,374 (members: 54, guests: 1,320)
Robots: 1,886

Forum statistics

Threads
195,667
Posts
2,873,096
Members
156,519
Latest member
afvac

Share this page

Top