ABS2 fault code readout

[Raul Duke]

Terry -
When you replaced yours, did you just replace the hydro unit and not the ecm on the hydro unit? I picked up an older model on fleabay and swapped it out, but no luck. Took it in to the BMW dealer in the Springs and $65 later all they could say was the unit was bad. They couldnt say what was bad - ecm part or hydro assy. They said they could replace it for a measly $1700. WTF????

[Terry]

Originally Posted by Raul Duke

Terry -
When you replaced yours, did you just replace the hydro unit and not the ecm on the hydro unit? I picked up an older model on fleabay and swapped it out, but no luck. Took it in to the BMW dealer in the Springs and $65 later all they could say was the unit was bad. They couldnt say what was bad - ecm part or hydro assy. They said they could replace it for a measly $1700. WTF????

Gee $1700 is a bargain. The new price for the hydro unit is $2100!!!! Are we talking ABS-II here?
I purchased a used unit on ebay that had the hydro and the ecm. But it was for a different model (R1100S), so if I wanted to use it on my GS, I had two choices:
-Install the replacement hydro and ecm and then take it to the Springs dealer and try to get them to "re-code" the ecm to my bike. Others have done this with success, but having dealt with those guys in the Springs, I preferred option 2:
- Replaced the hydro unit, but kept the ecm from my bike. Very easy to do. Worked like a charm and didn't have to mess with the dealer or give them any more of my money and time.

Can you read out the error codes on your unit? Was it from the same model as your bike? The "technician" at the Springs dealer didn't seem to know anything about re-coding when I talked to them, so maybe that's all you need.

Terry

[Raul Duke]

Originally Posted by Terry

Gee $1700 is a bargain. The new price for the hydro unit is $2100!!!! Are we talking ABS-II here?

Yep. They are doing a 20% off sale right now. I dont think I would buy one if it was 75% off - knowing its just a matter of time before it fails again.

Originally Posted by Terry

Can you read out the error codes on your unit? Was it from the same model as your bike? The "technician" at the Springs dealer didn't seem to know anything about re-coding when I talked to them, so maybe that's all you need.

Its giving the control unit fault. The unit I got was off of a R 1100 GS - '98 I think... anyhow I have swapped ecm and hydros from the original and the replacement - my last option was to bring it to the dealer and see if they could reprogram it. And yah, I got the "what the hell are you talking about" look from the dealer. I didnt need that $65 anyhow.

I'm not sure what to try now besides pulling the relay and the bulb for the idiot lights and ride it without ABS.

[Terry]

Originally Posted by Raul Duke

Yep. They are doing a 20% off sale right now. I dont think I would buy one if it was 75% off - knowing its just a matter of time before it fails again.


Its giving the control unit fault. The unit I got was off of a R 1100 GS - '98 I think... anyhow I have swapped ecm and hydros from the original and the replacement - my last option was to bring it to the dealer and see if they could reprogram it. And yah, I got the "what the hell are you talking about" look from the dealer. I didnt need that $65 anyhow.

I'm not sure what to try now besides pulling the relay and the bulb for the idiot lights and ride it without ABS.

When I look at the MAXBMW parts fiche, the part number for the R1100GS hydro unit is not the same as the 1150GS. I don't know if that matters, but it would worry me. I made sure the donor bike (an R1100S in my case) had the same part number for the hydro unit as my 1150GS. Maybe the differences are insignificant, but I don't know.
What does it do now? Can you succesfully reset it? Does it then fault as it does the roll away self check? Does it do the self check (ker-chunk noise)?

Terry

[Raul Duke]

Originally Posted by Terry

What does it do now? Can you succesfully reset it? Does it then fault as it does the roll away self check? Does it do the self check (ker-chunk noise)?

It resets fine, but errors when you roll away. It does the self check noise, but the original hydro does not have as loud of ker-chunk, but the replacement 1100 does. Currently, I have the ecm from the 1100 on the original hydro. The shop diagnostics came back with a stuck piston, which leads me to belive that the ecm is fine, but the hydro causing the problems. Also, the guy at the shop said the hydro unit "didnt sound right". I did the clean/spring stretch to the origional hydro, but not the 1100 replacement. The last time I put the 1100 hydro in, it also errored out on roll away but did have the "normal" ker-chunk noise - that was with the original 1150 ecm with the 1100 hydro. I think my next move is to take the current ecm (seeing as it appears to do the computer diagnostic OK) and put it on the 1100 hydro and do the clean and stretch on that hydro unit.

[Terry]

Originally Posted by Raul Duke

It resets fine, but errors when you roll away. It does the self check noise, but the original hydro does not have as loud of ker-chunk, but the replacement 1100 does. Currently, I have the ecm from the 1100 on the original hydro. The shop diagnostics came back with a stuck piston, which leads me to belive that the ecm is fine, but the hydro causing the problems. Also, the guy at the shop said the hydro unit "didnt sound right". I did the clean/spring stretch to the origional hydro, but not the 1100 replacement. The last time I put the 1100 hydro in, it also errored out on roll away but did have the "normal" ker-chunk noise - that was with the original 1150 ecm with the 1100 hydro. I think my next move is to take the current ecm (seeing as it appears to do the computer diagnostic OK) and put it on the 1100 hydro and do the clean and stretch on that hydro unit.

I'm kind of surprised that the ecm from the 1100 works at all without re-coding it. I guess I would have expected it to thow an error code saying it was coded for the wrong vehicle. I read that somewhere, but I don't remember where.

Does it consistently give the error code 7 (hydro unit)?
I have the parts left over from my swap if any of them are of use to you. The hydro unit is junk of course (especially after my ham-fisted disassembly of it). But the motor and relay are good as far as I know, Also maybe the pistons, and little springs are good.

Terry

[Raul Duke]

Originally Posted by Terry

I'm kind of surprised that the ecm from the 1100 works at all without re-coding it. I guess I would have expected it to thow an error code saying it was coded for the wrong vehicle. I read that somewhere, but I don't remember where.

That was my thought too - they didnt mention it at the shop, only the stuck piston code. I did tell them it was a different ecm and may need to be flashed.

Originally Posted by Terry

Does it consistently give the error code 7 (hydro unit)?
I have the parts left over from my swap if any of them are of use to you. The hydro unit is junk of course (especially after my ham-fisted disassembly of it). But the motor and relay are good as far as I know, Also maybe the pistons, and little springs are good.

Yep - 7. I appreciate the offer for the parts, I'll let you know. I'm going to try the clean and stretch on the 1100 hydro this weekend and see how it goes.

--R

[Terry]

Originally Posted by Raul Duke

That was my thought too - they didnt mention it at the shop, only the stuck piston code. I did tell them it was a different ecm and may need to be flashed.


Yep - 7. I appreciate the offer for the parts, I'll let you know. I'm going to try the clean and stretch on the 1100 hydro this weekend and see how it goes.

--R

Let us know how it goes...

[Poolside]

Originally Posted by Terry

I'm kind of surprised that the ecm from the 1100 works at all without re-coding it. I guess I would have expected it to thow an error code saying it was coded for the wrong vehicle. I read that somewhere, but I don't remember where.

Paging the expert on such matters.

"....Anorak to the white courtesy phone.... Anorak to the white courtesy phone please..."

[Anorak]

Originally Posted by Poolside

Paging the expert on such matters.

"....Anorak to the white courtesy phone.... Anorak to the white courtesy phone please..."

Well, "expert" is quite a stretch. My experience is one time while I was working at a dealer I installed on a GS a used ABSII unit that the customer brought in. When I hooked it to the GT1 diagnostic equipment, the GT1 said that it was for an S. Then I was prompted to click on a link to recode the ABS for the GS. I did and everything worked.

[Beezer]

Mostly just a bump..... but does anybody have the part number for the 1150gs module handy? Mine is a 2000 & going through all the symptoms described. I have a line on one from an 1100 that looks the same.

[Roll-sen]

Originally Posted by Beezer

Mostly just a bump..... but does anybody have the part number for the 1150gs module handy? Mine is a 2000 & going through all the symptoms described. I have a line on one from an 1100 that looks the same.

34512331637 is the number of the unit from the 1150GS.

[Beezer]

update: My bike is a year 2000 1150GS, I did all the easy things like flush the system, clean pistons & stretch the little springs & all to no good. So I got a line on a cheap module & put that in... It's from an R1100RS, so off to the dealer to re-code (I have a friend there that runs the diagnostic). We went through the setup and got to the point where it says that this is the wrong module for the bike..... would you like to recalibrate? "Yes"... then it says, sorry, no can do, replace module. We tried it half a dozen times & got the same thing so... not all ABS II modules are the same.

So my next move is to graft the old brain on to the "new" hydro.

Also, I emailed Module Master a few days ago about repairs to the module and got this back:
"Currently we are working on a fix for the ABS I system. Regrettably, at this time we aren't working on type II and unfortunately won't be starting on it for several months at the earliest. "

The quest continues.

[Terry]

Originally Posted by Beezer

update: My bike is a year 2000 1150GS, I did all the easy things like flush the system, clean pistons & stretch the little springs & all to no good. So I got a line on a cheap module & put that in... It's from an R1100RS, so off to the dealer to re-code (I have a friend there that runs the diagnostic). We went through the setup and got to the point where it says that this is the wrong module for the bike..... would you like to recalibrate? "Yes"... then it says, sorry, no can do, replace module. We tried it half a dozen times & got the same thing so... not all ABS II modules are the same.

So my next move is to graft the old brain on to the "new" hydro.

Also, I emailed Module Master a few days ago about repairs to the module and got this back:
"Currently we are working on a fix for the ABS I system. Regrettably, at this time we aren't working on type II and unfortunately won't be starting on it for several months at the earliest. "

The quest continues.

That sucks. The graft is easy enough once you get your hands on the tri-wing driver. Hopefully that gets your abs working again.

Terry

[Roll-sen]

Try BBS Reman in Mass. Reportedly they've worked on ABS-II units before.

http://www.bba-reman.com/us/index.aspx

http://www.bba-reman.com/content.asp...Motorcycle_ABS

I found posts on European bike-forum sites stating that these guys had successfully rebuilt BMW ABS-II units. And I called the Mass. shop during the summer and was told by the receptionist, after she asked around a bit, that yes they do work on BMW bike units.

There's also someplace up in the Idaho panhandle that rebuilds these units. I forget their name.