Author Topic: Integral ABS 2 - CAN "Power Supply to Pump motor faulty"  (Read 28649 times)

kobus

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Integral ABS 2 - CAN "Power Supply to Pump motor faulty"
« on: April 18, 2013, 05:40:55 PM »
Symptom:
On the "Integral ABS 2 - CAN" control units a common error is the following:

24048 Power Supply to Pump motor faulty.
24049 Power Supply to Pump motor faulty.

Solution:
Usually the cause is that the brushes of the ABS pump motor are shorted or stuck to the motor housing.
Some brave people have opened the ABS module and fixed the pump motor.
Knocking the unit with a rubber hammer might temporarily fix the issue.

Prevention:
Keep the battery properly charged.
We suspect that a battery that is not properly charged increases the motor current and shortens the life of the ABS pump motor.
Be careful with the high pressure hose.
« Last Edit: April 19, 2013, 09:21:43 AM by kobus »
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StephanT

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Re: Integral ABS 2 - CAN "Power Supply to Pump motor faulty"
« Reply #1 on: April 18, 2013, 11:24:37 PM »
Just for clarity, the "Integral ABS 2 CAN" control unit is the second generation (non-Servo) ABS used on the K24 models (i.e. CAN-bus models  as of late 2007)

best,
Stephan

Jos

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Re: Integral ABS 2 - CAN "Power Supply to Pump motor faulty"
« Reply #2 on: April 22, 2013, 09:18:38 PM »
Hi all,

Attached some pictures from the Google group (posted by jebo) that explain what to do.

Best,

Jos
 
 
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kobus

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Re: Integral ABS 2 - CAN "Power Supply to Pump motor faulty"
« Reply #3 on: April 23, 2013, 09:46:44 AM »
Thanks Jos!
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Greenvetter

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Re: Integral ABS 2 - CAN "Power Supply to Pump motor faulty"
« Reply #4 on: April 27, 2013, 05:20:02 PM »
Hi,
I did this repair last weekend. I pulled the pump rather than attempt it in the bike as other forums have suggested. Other than drilling the holes in the motor to get at the release tabs it's not too difficult. I-BWM great write up with links to a youtube video. A GS911 is mandatory for error verification and bleeding. My bike is a K41 07 1200GT.

Great product and software!

Thanks.

Jos

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Re: Integral ABS 2 - CAN "Power Supply to Pump motor faulty"
« Reply #5 on: April 28, 2013, 04:15:29 PM »
Hi,

Thanks for your input.
Could you please post the link to the I-BMW write up and the video?
Would be very helpfull for other users.

Best,

Jos
GS-911 Benelux

Jvosum

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Re: Integral ABS 2 - CAN "Power Supply to Pump motor faulty"
« Reply #6 on: July 17, 2013, 10:21:24 PM »
Hi,
for those, who are not so skilled in searching on Youtube, this is probably the video: http://www.youtube.com/watch?v=oyUvwwBQg0A


Jughead

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Re: Integral ABS 2 - CAN "Power Supply to Pump motor faulty"
« Reply #7 on: August 16, 2013, 10:24:26 PM »
Hi,
for those, who are not so skilled in searching on Youtube, this is probably the video: http://www.youtube.com/watch?v=oyUvwwBQg0A



For those interested, I have all the tooling to split, refurbish and re-assemble these pumps WITHOUT drilling huge holes in the motor casing.

I provide an 8hr turnaround time on the repair.  In fact, if I receive it early enough in the day, it can be returned via courier the same day.

« Last Edit: May 09, 2014, 01:33:10 PM by Jughead »

Haakon

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Re: Integral ABS 2 - CAN "Power Supply to Pump motor faulty"
« Reply #8 on: August 18, 2013, 01:00:39 AM »
Just a comment to "Kobus"`s first post:
A low voltage WILL fry the brushes and motor commutator.
Or make the brushes "weld" to the brush housing.
 
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Beamietoo

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Re: Integral ABS 2 - CAN "Power Supply to Pump motor faulty"
« Reply #9 on: August 18, 2013, 05:36:36 PM »
Anybody know where to get replacement brushes if the are fryed ?
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Jughead

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Re: Integral ABS 2 - CAN "Power Supply to Pump motor faulty"
« Reply #10 on: August 18, 2013, 05:46:58 PM »
Your local Bosch Autoelectrical outlet.

Beamietoo

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Re: Integral ABS 2 - CAN "Power Supply to Pump motor faulty"
« Reply #11 on: August 18, 2013, 06:00:11 PM »
Thanks Jughead !!
Diapers and politicians should be changed often.

Bikecare

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Re: Integral ABS 2 - CAN "Power Supply to Pump motor faulty"
« Reply #12 on: November 14, 2013, 09:15:45 AM »
Hi all,

I had the same problem and I did repair myself last Sunday.

Here the video:
feature=c4-overview&list=UU2KJA52RymcDoE50E2hOgxA

Hope it helps!

Paul90

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Re: Integral ABS 2 - CAN "Power Supply to Pump motor faulty"
« Reply #13 on: November 15, 2013, 04:45:11 PM »
+1

Had the same problem, same GS911 codes.

I dismantled the pump based on info from here cleaned / freed off the bushes and it's all fixed  :)

+500 trouble free miles now.

Paul

Bernard

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Re: Integral ABS 2 - CAN "Power Supply to Pump motor faulty"
« Reply #14 on: November 18, 2013, 03:22:07 PM »
Hi guys!

Got the same fault codes on a GS Adventure I'm working on. Followed the procedure in this post. Reassembled, reinstalled & bled. Initialization went well & warning lamp turned off as it rolled off. Thought I had it in the bag, til I hit the brakes. ABS warning lit & went steady. Plugged in GS-911 & found the same fault codes present & wont be cleared. Carbon brushes are still very long, tension on the springs are pretty good, when I dismantled the motor. Commutator & other contacts cleaned & checked but still went back to square 1, after a short road test. Any recommendations or suggestions, on what might went wrong?

Thanks in advance!

Bernard R.