No response from controller (both engine & ABS) & Brake Failure light constantly on
DaveH46
I have a professional version of the GS911 & am running the latest
software release.
I recently travelled 1000 miles to the South of France – no problems
with the bike at all.
Went to start the bike the morning after I arrived. The ABS did not
initialise and the ‘BRAKE FAILURE’ light constantly lit. No Flashing
of the other ABS warning light.
On connecting the GS911 I get a ‘No response from the controller’
message for both the ABS and Engine ECU’s.
Engine runs fine.
Just got home (under residual braking) and tried GS911 on my garage
computer – still unable to connect to either ECU
On testing the interface I get
Version - 0.15.A
K Line status – stuck low (ign off)
Serial No - GS4********1-AF2D
Bluetooth Support – YES
License Date – 06/08
Build Date – May 5 2009 10:52:17
Battery Voltage 13.00v
I have checked the bike is in neutral, kill switch OK and there is no
immobiliser fitted.
Was initially thinking it was a servo failure, but not so sure now as
I can't communicate with the Engine ECU either - --
Anyone have any suggestions please – the bike is a 2003 Twin Spark
1150 GS with integrated (servo) ABS.
Thanks
Dave Hay
Jos Palmaers
K Line stuck low seems to indicate a problem with the wiring loom between
the diagnostics connector and the ECU/ABS controller.
You need a wiring diagram of the bike to check this out.
I suppose ignition is switched on after connecting the GS-911 and before
doing any readouts?
Best,
Jos
GS-911 Benelux
Nachtegaallaan 10
B-2321 Meer
Belgium
Tel. +32 495 24 19 19
Fax. +32 3 700 52 38
E-mail in...@gs-911.be
www.gs-911.be
-----Oorspronkelijk bericht-----
Van: gs-...@googlegroups.com [mailto:gs-...@googlegroups.com] Namens DaveH46
Verzonden: zondag 30 mei 2010 13:28
Aan: GS-911 Field Diagnostic Tool for BMW motorcycles
Onderwerp: [GS-911] No response from controller (both engine & ABS) & Brake
Failure light constantly on
DaveH46
Yes - ignition switched on - anyone have any experience of the K line
stuck low message... ??
For info, the triangular warning light on the dash does not illuminate
at all when ignition on, just the rectangular 'brake failure' light.
ABS system does not initiate at all.
Dont really want to rip the ABS system out to find out it's a wiring
problem !!
Dave
On May 30, 1:16 pm, "Jos Palmaers" <i...@gs-911.be> wrote:
> HI Dave,
>
> K Line stuck low seems to indicate a problem with the wiring loom between
> the diagnostics connector and the ECU/ABS controller.
> You need a wiring diagram of the bike to check this out.
>
> I suppose ignition is switched on after connecting the GS-911 and before
> doing any readouts?
>
> Best,
>
> Jos
>
> GS-911 Benelux
> Nachtegaallaan 10
> B-2321 Meer
> Belgium
> Tel. +32 495 24 19 19
> Fax. +32 3 700 52 38
Jos Palmaers
Did you check the fuses?
Best,
Jos
-----Oorspronkelijk bericht-----
Van: gs-...@googlegroups.com [mailto:gs-...@googlegroups.com] Namens DaveH46
Verzonden: zondag 30 mei 2010 14:43
Aan: GS-911 Field Diagnostic Tool for BMW motorcycles
Onderwerp: [GS-911] Re: No response from controller (both engine & ABS) &
Thanks Jos --
Dave
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DHMOTO
Yes, and the brake light bulbs and switches - all ok...
Dave
Kerim Erdölen
Check the front brake lever. İt must be free
Dave,
Best,
Jos
Thanks Jos --
Dave
> I recently travelled 1000 miles to the South of France - no problems
> with the bike at all.
> Went to start the bike the morning after I arrived. The ABS did not
> initialise and the 'BRAKE FAILURE' light constantly lit. No Flashing
> of the other ABS warning light.
> On connecting the GS911 I get a 'No response from the controller'
> message for both the ABS and Engine ECU's.
> Engine runs fine.
> Just got home (under residual braking) and tried GS911 on my garage
> computer - still unable to connect to either ECU On testing the
> interface I get
>
> Version - 0.15.A
> K Line status - stuck low (ign off)
> Serial No - GS4********1-AF2D
> Bluetooth Support - YES
> License Date - 06/08
> Build Date - May 5 2009 10:52:17
> Battery Voltage 13.00v
>
> I have checked the bike is in neutral, kill switch OK and there is no
> immobiliser fitted.
>
> Was initially thinking it was a servo failure, but not so sure now as
> I can't communicate with the Engine ECU either - --
>
> Anyone have any suggestions please - the bike is a 2003 Twin Spark
DaveH46
I have now tried disconnecting the ABS servo connector.
With this removed, the GS911 will read the engine ECU.
I am assuming the ABS controller circuit board is defective..
Dave H
On May 30, 7:08 pm, Kerim Erdölen <kerim.erdo...@superonline.com>
wrote:
> Hi
> Check the front brake lever. Ýt must be free
> --
> You received this message because you are subscribed to the Google Groups
> "GS-911 Field Diagnostic Tool for BMW motorcycles" group.
> To post to this group, send email to gs-...@googlegroups.com.
> To unsubscribe from this group, send email to
> gs-911+un...@googlegroups.com.
Kerim Erdölen
Did you down the bike right side?
DaveH46
levers OK . The handguards are not in contact with the levers. A test
with a multimeter shows the switches are normally closed which is how
they should be....
On May 30, 8:19 pm, Kerim Erdölen <kerim.erdo...@superonline.com>
beemer
What went wrong on your bike??
Regards
-----Oorspronkelijk bericht-----
Van: gs-...@googlegroups.com [mailto:gs-...@googlegroups.com] Namens DaveH46
Verzonden: zondag 30 mei 2010 21:15
DaveH46
suddenly died. I have now removed the ABS servo unit, rewired
evrything and all is well - I have posted instructions on how to do it
here - http://www.ukgser.com/forums/showthread.php?t=232002
David Stevenson
Does anyone know if a similar procedure can be done on a R1200GS? Would
this even be wise (ie would the brakes then not be effective)? I am
thinking that if/when the servo breaks I would rather get rid of it (if the
brakes still work) than spend the huge amount of money fixing or replacing
it.
I am hoping that this might be feasible, as the more recent models do not
have a servo AFAIK.
David
> -----Original Message-----
> From: gs-...@googlegroups.com [mailto:gs-...@googlegroups.com] On
> Behalf Of DaveH46
> Sent: 17 June 2010 09:37
> To: GS-911 Field Diagnostic Tool for BMW motorcycles
> Subject: [GS-911] Re: No response from controller (both engine & ABS) &
> Brake Failure light constantly on
>
DaveH46
thread...
On Jun 17, 9:49 am, "David Stevenson" <d.j.steven...@sussex.ac.uk>
wrote:
>
> Does anyone know if a similar procedure can be done on a R1200GS? Would
> this even be wise (ie would the brakes then not be effective)? I am
> thinking that if/when the servo breaks I would rather get rid of it (if the
> brakes still work) than spend the huge amount of money fixing or replacing
> it.
>
> I am hoping that this might be feasible, as the more recent models do not
> have a servo AFAIK.
>
> David
>
> > -----Original Message-----
> > From: gs-...@googlegroups.com [mailto:gs-...@googlegroups.com] On
> > Behalf Of DaveH46
> > Sent: 17 June 2010 09:37
> > To: GS-911 Field Diagnostic Tool for BMW motorcycles
> > Subject: [GS-911] Re: No response from controller (both engine & ABS) &
> > Brake Failure light constantly on
>
> > Hi - Not sure why, but the circuit board in the ABS controller just
> > suddenly died. I have now removed the ABS servo unit, rewired
> > evrything and all is well - I have posted instructions on how to do it
David Stevenson
reference to a 1200 in the thread
http://www.ukgser.com/forums/showthread.php?t=232002. Is that the one you
are referring to?
David
> --
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Ken Harbeck
The procedure shown in that particular ukgser thread is for the 1150 series.
A similar approach can be taken for a gen 1 1200. I know of at least one person whom has done it.
Recognize though that you are not only disabling the servo assist, you are removing ABS from the bike. A risk tolerance only you can decide. |
|
|
Mark
I've removed the servo on my 05GS. Info is here on ADVrider
http://advrider.com/forums/showthread.php?t=343508&page=2
basic answer:
A rear brake pipe from a non-servo bike and a short section on brake
tubing and 10mm x 12mm adapter for the front line.
It was a simple job to remove the servo and replace the brake lines. A
quick bleed and the brakes were good to go. Definitely a different
feel without the servos. Better than residual brakes and with great
brake feel, much better than the servos.
The unknown now was the electrical, i.e. canbus system. The brake
lights work thru the ZFE so no problem there. However, the speedo and
odometer get their signal from the ABS processor thru the canbus. That
and the flashing warning lights since the system assumed there was an
ABS failure since there was no communication with the now removed ABS
unit.
First step was to compare the wiring schematic of a non-abs harness to
an ABS harness. The connector on the ABS servo gets direct battery
power, front and rear wheel speed sensor data, canbus communication,
brake reservoir fluid level, ABS bypass switch and diagnostic port.
The non-abs bike connects the rear wheel speed sensor to the ZFE
instead of the ABS unit. My goal was to modify the bike in a way that
would be easily reversible if I was inclined to replace the servo unit
at a later date. That meant no permanent modifications to the original
wiring harness.
Some detailed examination and a small screwdriver allowed me to
disassemble the connector housings. Unfortunately, the pins in the ZFE
connector and the ABS connector are not interchangeable. Hours spent
looking at the Mouser and Digikey catalogs and I still wasn't sure of
the proper part numbers for the correct pins. Time for another
approach. I sourced a main harness from a salvage bike and proceeded
to take the connectors apart and salvage the pins I needed. Another
benefit was the salvaged connector for the speed sensor.
This allowed me to build a new speed sensor cable and connect it to
the ZFE. Some BMW tape to wrap the harness and it looks OEM. I used
some small pieces of heat shrink to insulate the unused wires from the
original ABS connector and taped them into a small "dead end" branch
of the main harness. This was easy to tape back and disappears without
the plastic connector body on it. All that's needed is to re-insert
the pins into the correct position on the connector body should I ever
want re-install the ABS servo.
An appointment with my local dealer was now in order. I had several
discussions with the mechanic and service manager about re-programing
the bike's systems. At first they thought it would be a 20 minute job.
They also wanted to know how the bike was modified (I gave them copies
of the schematics) and be sure the brakes worked properly. I don't
blame them for that, we were talking about modifying a vital safety
system.
Then when they actually started to think about re-programing, they
weren't so sure it could be done. Seems the GT1 knows what the bike is
supposed to have by the VIN number. Their first try was to request a
new vehicle build order from BMW for a non-abs bike. That request was
denied by corporate. In the end they were able to successfully modify
the vehicle build code themselves. They also updated all of the other
processors with the latest software.
Now there are no error codes and no warning lights. And I have re-
discovered why I love this bike. It is even more enjoyable with the
non-abs brakes. Control feel and feedback is much better than the
servo brakes. And while I like the abs functionality, a large amount
of my riding is dirt and I don't need or want the abs there. Besides,
my other bikes don't have abs and I OK with the braking system on
those bikes.
This may not be a modification for everyone but it can be done. This
makes financial sense also as the resale value of the bike declines
and the cost of a servo replacement climbs above 30% or more of the
vehicle's value.
Mark
Mark
with the GS-911. However it will work fine with the modified bike for
all of its intended uses.
Mark
> I've removed the servo on my 05GS. Info is here on ADVriderhttp://advrider.com/forums/showthread.php?t=343508&page=2
David Stevenson
hearted ;-) Let's hope the servo or ABS board is robust and doesn't pack
up...
David
> -----Original Message-----
> From: gs-...@googlegroups.com [mailto:gs-...@googlegroups.com] On
> Behalf Of Mark
> Sent: 17 June 2010 16:36
> To: GS-911 Field Diagnostic Tool for BMW motorcycles
> Subject: [GS-911] Re: No response from controller (both engine & ABS) &
> Brake Failure light constantly on
>
> David,
>
> I've removed the servo on my 05GS. Info is here on ADVrider
> http://advrider.com/forums/showthread.php?t=343508&page=2
>
> basic answer:
> A rear brake pipe from a non-servo bike and a short section on brake
> tubing and 10mm x 12mm adapter for the front line.
>
etc
Aljotock
getting it off the trailer the brake light was constantly on and no
ABS. I tried everything and eventually found the front brake level was
JUST touching the inside of the hand guard. Just enough to stop it
from full releasing but not enough to apply the brake. I twisted the
guard a little and hey presto!
Good luck
Alan
iPhone 3gs.... You soooo want one!
On 18 Jun 2010, at 11:07, "David Stevenson"
<d.j.st...@sussex.ac.uk> wrote: