I want to disable my ABS II system - BMW Luxury Touring Community
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post #1 of 9 Old May 16th, 2018, 6:37 am Thread Starter
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I want to disable my ABS II system

2000 LT, I've reset the system multiple times, checked all the suggested parts and pieces. I've been riding the past 2 seasons with black electric tape over the wig wag fault lights. So now I just want the system turned off! Q: Can I just unplug the harness from the controller and disable it? On the early LT's it's my understanding that the ABS II system doesn't effect the speedometer or brake light. I was also advised to cut the RED wire that powers the system inside the big connector to the ABS controller. I'm not wanting to remove the dash lights, FWIW: removing the lights doesn't stop the relay or circuit from sending the signal for flashing and cycle the removed lights! Any and all advice is welcome.

2000 BMW K1200LT
2005 BMW R1200GS
2001 Kaw KX250
1974 Kaw KX250
1981 Yam YZ465


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post #2 of 9 Old May 16th, 2018, 2:36 pm
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Re: I want to disable my ABS II system

Undoing the big connector on the ABS unit will effectively disconnect the ABS from the bike. No lights will flash and no current will flow as this also removes the signal to the ABS relay that drives the ABS motor. So you should be good.
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John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #3 of 9 Old May 16th, 2018, 3:36 pm Thread Starter
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Re: I want to disable my ABS II system

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Originally Posted by jzeiler View Post
Undoing the big connector on the ABS unit will effectively disconnect the ABS from the bike. No lights will flash and no current will flow as this also removes the signal to the ABS relay that drives the ABS motor. So you should be good.
Thanks jzeiler, I have one last thing to try, the ABS II system would stay operational for a while after a gs911 reset, it would work for half a day and fail randomly after a gas stop or lunch break. So I found this ABS II piston cleaning and teardown procedure over on another forum. (FWIW, I also found it posted on random sites on a random search) I think the author wants us to use it if possible. If not someone can remove it.. just sharing.

So this weekend I'll pull the pistons and give it one last attempt to get it back working. Thanks
Attached Files
File Type: pdf BMW ABS II D&A.pdf (1.38 MB, 198 views)

2000 BMW K1200LT
2005 BMW R1200GS
2001 Kaw KX250
1974 Kaw KX250
1981 Yam YZ465


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post #4 of 9 Old May 16th, 2018, 5:37 pm
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Re: I want to disable my ABS II system

Good I have been wanting to try that procedure but never had a failed ABS II in my shop. Let us know how it does.

Did the 911 unit give you the "stuck piston" fault? If so this should fix it.

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #5 of 9 Old May 18th, 2018, 10:58 pm
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Re: I want to disable my ABS II system

Hey John. Speaking of ABS units. I'm looking to get the size & thread pitch for the brake line splitter on the frame,up The one that the line from the handle bar reservoir and front calipers tie into the Hard lines input & discharge for the ABS pump. Any chance you know? I believe the top of the splitter were the banjo goes is 10mm ◊ 1.0

2004 K1200LT. Big Mama
1999 Suzuki Intruder VL1500LC. Betty Lou.
I'm a 4 percenter.
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post #6 of 9 Old May 19th, 2018, 9:07 am
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Re: I want to disable my ABS II system

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Originally Posted by james216 View Post
Hey John. Speaking of ABS units. I'm looking to get the size & thread pitch for the brake line splitter on the frame,up The one that the line from the handle bar reservoir and front calipers tie into the Hard lines input & discharge for the ABS pump. Any chance you know? I believe the top of the splitter were the banjo goes is 10mm ◊ 1.0
I believe BMW uses 10mm X 1mm for all brake lines.

Robert

They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.
Benjamin Franklin (1706 - 1790)


2000 K1200LT "Latifah"
1994 R1100RSL (wife's)
1981 R80GS
1976 R90S
1965 R80/2 Frankenbike (wife's)
2001 Bunkhouse LX (given to son)
2011 Bunkhouse Queen

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post #7 of 9 Old May 19th, 2018, 9:23 am
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Re: I want to disable my ABS II system

Robert nailed it! M 10 x 1

John
2009 K1300GT Red Rocket
2009 R1200GS (Gone)
2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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post #8 of 9 Old May 19th, 2018, 10:49 am
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Re: I want to disable my ABS II system

Thank you Scouter.

2004 K1200LT. Big Mama
1999 Suzuki Intruder VL1500LC. Betty Lou.
I'm a 4 percenter.
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post #9 of 9 Old May 19th, 2018, 10:52 am
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Re: I want to disable my ABS II system

Thanks John..

2004 K1200LT. Big Mama
1999 Suzuki Intruder VL1500LC. Betty Lou.
I'm a 4 percenter.
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