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ABS module removed??

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Old Mar 8, 2024 | 04:14 PM
  #21  
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Originally Posted by hattitude
You said, Looks like the ABS elimination was done the correct way."

I respectfully disagree..... IMHO, the correct way would have been to flash the ABS light to off, AND replace the ABS lines, with the proper non-ABS lines as you showed in your pics.

Obviously more work & money in the "correct way" but it removes all the extra fittings and potential leak points from how 81shovleheads!'s previous owner did it. The previous owner just removed the ABS module and then connected the ABS lines' fittings together so the ABS brake lines functioned like non-ABS brake lines... That IMHO is sloppy work and a short cut.



It would certainly work, but I consider that a "mickey-mouse" repair, not the "correct way".. (does anybody still use the label "mickey-mouse" for a short cut, and/or sloppily done mods?)


I offer this critique of the way it was done in 81shovleheads!'s picture by the previous owner, for anyone wishing to eliminate the ABS module in the future... Like Sc0- mentioned in the above post..
I've wondered how brake fluid reacts w/brass over time.
 
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Old Mar 8, 2024 | 04:19 PM
  #22  
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Originally Posted by Rollbar
I've wondered how brake fluid reacts w/brass over time.
it does fine.
I have used many a brass or what looks like fitting in brake systems

WP
 
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Old Mar 8, 2024 | 04:33 PM
  #23  
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Originally Posted by WP50
it does fine.
I have used many a brass or what looks like fitting in brake systems

WP
Thank you,
 
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Old Mar 9, 2024 | 09:23 AM
  #24  
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Originally Posted by Sc0-
My ABS pump is giving me a C1055 error, dealer did the abs fluid change recall a year ago. I flushed it two more times using TwinScan, the code mostly pops up in the morning when it's cold but usually doesn't come on the evenings when it's time to go home. Brakes work just fine but IF my levers lock up again, I am bypassing it the same as the original poster did. (My original ABS pump locked both levers up, this is a replacement and won't be replaced again.)
What exactly happened when your levers locked up?
Did the bike come to a screeching halt??
 
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Old Mar 9, 2024 | 05:49 PM
  #25  
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Originally Posted by 81shovelhd!

What exactly happened when your levers locked up?
Did the bike come to a screeching halt??

I can't speak for Sc0-,

But I know that the usual "lock up" when the ABS system freezes is that the levers won't move.... The frozen ABS module will block the flow of brake fluid through the entire system, not just the ABS module. That leaves you with no brakes at all...

Each circuit (front brakes and rear brakes) are separate within the ABS module. Based on reports I have read, it is rare that you lose both front and rear brakes at the same time... but it is possible...
 
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Old Dec 30, 2025 | 05:41 PM
  #26  
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Originally Posted by hattitude
I can't speak for Sc0-,

But I know that the usual "lock up" when the ABS system freezes is that the levers won't move.... The frozen ABS module will block the flow of brake fluid through the entire system, not just the ABS module. That leaves you with no brakes at all...

Each circuit (front brakes and rear brakes) are separate within the ABS module. Based on reports I have read, it is rare that you lose both front and rear brakes at the same time... but it is possible...
I had my ABS module fail and the front brake became almost inoperable. I could squeeze the heck out of it and get some response from it although not ideal in an emergency situation. Maybe it hadn't totally failed. Regardless, I had the module replaced which was expensive. When the ABS recall came out you had to prove that you had the brake fluid serviced every 24 months. I could not prove that so was unable to take advantage of the recall. HD also started using the Platinum version of brake fluid and offered free flush and install of that variety of fluid also to bikes with qualifying ABS modules.
 
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Old Jan 12, 2026 | 09:11 AM
  #27  
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Originally Posted by aboatguy
When the HCU fails on my 2008 Ultra, I lose brakes and the lever is locked even when the bike is off. (Mine seems to be a front brake only issue)
I have the same issue right now with my 2013 ultra limited.
 
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Old Jan 12, 2026 | 10:08 AM
  #28  
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I know this is an older thread. Interesting enough I just checked the moisture level in my bikes yesterday and it was under 3% moister which is the threshhold to flush the system according to my manual.

I did it myself on both bikes a little less then two years ago now. It will need it again this year I am sure.

It's a must to keep these systems alive and working properly.

 
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Old Jan 13, 2026 | 01:40 PM
  #29  
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Brass is not strong enough for a brake system. This would not pass the safety inspection .
I have had a brass fitting split in an auto use.
The correct way is to replace lines with abs delete lines. Make it safe.
 
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