Abs help please - BMW R1200GS Forum : R1200 GS Forums
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post #1 of 2 (permalink) Old 16-Oct-2014, 08:30 PM (062) Thread Starter
Join Date: Aug 2014
Location: Brisbane Australia
Posts: 10
Exclamation Abs help please

Hi to all, i've searched the forum and can't find or have overlooked the answers.
If a moderator or forum guru can point me in the right direction that'd be great.

My tyres were recently replaced (front and rear), since getting the bike back my ABS has failed
Now i'm not saying that the shop bumped anything but i don't understand how the ABS can be working fine then just be constantly stuffed.....

I have had access to a diagnostic unit and have the following alarm/fault codes.

" Motor Pump Supply Motor Pump Supply C1DF0 Status ATT "
" Motor Pump Supply Motor Pump Supply C1DF1 Status ATT "
"On-board network undervoltage On-board network undervoltage C1DF4 Status MEM "

We were able to reset the undevoltage fault and that seems ok now.
But the two ABS warning faults are Still present and i'm lost.

Any help would be greatly appreciated.

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post #2 of 2 (permalink) Old 16-Oct-2014, 08:57 PM (081)
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Join Date: Oct 2006
Location: SF Bay Area
Posts: 2,923
I don't know ABS error codes. If you are a member of the GS-911 forum you might want to ask your question there. Someone might be more familiar with the codes.

The "normal" ABS issue that follows tire changes has to do with the speed sensors on front and rear wheels. The rear sensor is inserted into the final drive and is pretty well protected. The front, on the other hand, can be damaged by ham fisted wheel installers. Things to check:

* the sensor is in its proper place.
* the wiring to the sensor isn't damaged. If the lead is routed incorrectly it can be cut by the the brake disk.
* the "tone ring" -- a slotted ring on the wheel that the sensor "reads" to determine wheel speed -- isn't damaged.

Your error codes don't lead me to believe that any of those things are an issue but it only takes a few minutes to check.
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