Author Topic: GS-911 seems to be turning ABS servos off  (Read 7580 times)

BeenAround

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GS-911 seems to be turning ABS servos off
« on: February 10, 2014, 08:13:52 AM »
Hi all,

Last year I had the harrowing experience of having to replace the iABS Gen I unit in my 2005 BMW R1200GS.  That is when I bought a GS-911 to assist with diagnosis.  It didn't assist with the cost of having to replace the ABS unit at a cost of AUD3,000 landed here in Australia from A&S in California.  The BMW Motorrad Australia price was AUD3,843 - robbing so and sos.  Anyway, I battled through and replaced the bloody ABS unit and then went through hell bleeding the system.  And finally successfully performed bleed test on GS-911.

Then, when back on the road (actually on a National Park track in the middle of nowhere), the rear flex brake line exploded at the rear swage.  A mechanic at Wacky World told me that all flex hoses should be replaced every 6-8 years.  That makes sense, but I have not found any recommendation by BMW to do so.  That the flex hose failed at the swage and sprayed boiling brake fluid all over the final drive housing and swing arm, that perhaps explains why I had so much trouble bleeding the rear wheel circuit.  But it did bleed up in the end.

I got a set of hoses made up by HEL for a total price that just exceeded the OEM price for one of the 5 flex brake hoses.  That meant the brake system (and the clutch for good measure as I also replaced the clutch line) was drained, re-filled and had to be bled again.  The brakes and the ABS work just peachy.  But when I tried to do a bleed test, the GS-911 seemed to switch off the ABS servos so I could not do the test.  This happened right after I had downloaded the latest GS-911 software.

Has any other iABS Gen I sufferer had this problem.  i have emailed Hexcode and am waiting for a response,

Regards,
BeenAround


beemer

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Re: GS-911 seems to be turning ABS servos off
« Reply #1 on: February 16, 2014, 03:41:48 PM »
If i understood correctly what you mean>servo motors are always switched off before bleed test,even on BMW's diagnostic equipmnet.

titus

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Re: GS-911 seems to be turning ABS servos off
« Reply #2 on: February 11, 2016, 11:53:37 PM »
  I experinece the same problem , Gs911 turn off the servo pump. Did you sort it out why?

schuppi

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Re: GS-911 seems to be turning ABS servos off
« Reply #3 on: February 12, 2016, 10:22:29 AM »
Hello

At my knowledge, it is a precondition to shut down the servo while running the bleeding test :)

Testing allways without assistance of the servos, to see that the brake pressure is in right conditions.
Schönen Tag
Wolfgang
                                       talk less, drive more