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Thread: 2002 f650gs ABS switch problem

  1. #1

    2002 f650gs ABS switch problem

    Hi - I have a 2002 f650gs. The abs won't switch off. I used my GS911 and it is not showing any faults. Went through test and it shows no issues. By the way does anybody know what happen to the F650 forum? I did put new tires and bar risers. The heated grips do work. Thanks in advance.
    1997 Honda Valkyrie & 2002 F650GS

  2. #2
    This will be the last year I will subscribe to the MOA. Its the over abundance of kind helpful people I see here and there overwhelming attitude to help someone makes me want to contribute. With 47 views and not one comment Im out. I dont think Im a good fit for the MOA any longer.
    1997 Honda Valkyrie & 2002 F650GS

  3. #3
    Registered User drneo66's Avatar
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    Sorry for your experience, the F/G part of the forum doesn't seem to get a lot of traffic these days. (Plus the view count could be inflated by nonmembers). Which F650 forum are you talking about? I know the Chang Gang's forum hasn't been around for a while, but they still have their technical faq section up.

    I'd start by cleaning the switch and verifying that it works. It should be pretty simple to short across the switch and see if that's your culprit while you're in there. Do you think that the extra pull from the bar risers may have broken or dislodged a wire down the line?

    These bikes are starting to get old, so electrical gremlins art starting to pop up.
    Current: 2007 BMW R1200RT, 2013 F800GS
    Former: 1995 BMW K75S, 2009 BMW G650GS
    MOA Member #:150400, IBA#: 37558

  4. #4
    Fortis Fortuna Adiuvat Omega Man's Avatar
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    Quote Originally Posted by roninbuffalo View Post
    This will be the last year I will subscribe to the MOA. It’s the over abundance of kind helpful people I see here and there overwhelming attitude to help someone makes me want to contribute. With 47 views and not one comment I’m out. I don’t think I’m a good fit for the MOA any longer.
    To be fair,
    It’s only been about 16 hours. Out of those views, only 20 have been members and the rest are guests which includes “search engine” bots.
    I rather doubt anyone with posting privileges (members) read your inquiry and failed to post a helpful reply.

    From my own experience with top of the handle bar switches, I messed up one of mine by not being careful to not hang the helmet strap over it. I limbered the switch up and was good to go. I don’t know if your bike has switches like the F800GS.
    Good luck.
    OM
    BTW- I will add a bit to your title for clarity.
    Last edited by Omega Man; 04-06-2022 at 02:49 PM.
    "You can do good or you can do well. Sooner or later they make you choose." MI5
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    2009 F800GS 1994 TW200

  5. #5
    Registered User GTRider's Avatar
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    I have a friend with an F650 Dakar on which we have tried to resolve an issue where the bike occasionally wont start and occasionally shuts down, in both cases acting like the engine cutoff switch has been triggered. At this point we suspect the problem is in the wiring harness down by the steering neck, an area that has apparently been problematic on F650s from that era.

    The only diagnostic option we have for that bike is to peel open the harness and start looking for the intermittent short. On the OPs bike Id suggest he start by tracing the wire bundle from the switch down to its connector at the harness. Disconnect the connector and use a meter to test operation of the ABS switch, including moving the wire bundle while testing, to see if the switch is functioning and talking to the main harness. A wiring diagram is sure to be needed in order to identify the correct wires from the ABS switch.

    Good luck,
    DeVern
    DGerber
    1983 R80ST 1984 R80 G/S-PD 2004 K1200GT w/Hannigan S/C 2010 K1300GT 2018 R1200GS
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  6. #6
    Registered User wkoppa's Avatar
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    Quote Originally Posted by roninbuffalo View Post
    Hi - I have a 2002 f650gs. The abs won't switch off. I used my GS911 and it is not showing any faults. Went through test and it shows no issues. By the way does anybody know what happen to the F650 forum? I did put new tires and bar risers. The heated grips do work. Thanks in advance.
    Did you hold the button down for three seconds with the engine running and the bike at a standstill until the warning light starts flashing?

    With the motorcycle at a
    standstill and the engine running, press ABS button 2 and
    hold it down for 3 seconds
    Warning light 1 starts flashing
    Release ABS button 2
    The ABS function is deactivated
    Warning light 1 continues
    flashing, but at a slower rate,
    to remind you that ABS has
    been deactivated

    Wayne Koppa
    Grayling, MI
    #71,449

  7. #7
    I pull the abs switch out and the brown wire is separated form the switch. I got another switch coming thanks everyone. I believe the risers and age caused this issue(meaning I should of paid closer attention) when put it back together.
    1997 Honda Valkyrie & 2002 F650GS

  8. #8
    Fortis Fortuna Adiuvat Omega Man's Avatar
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    Great!
    Always good to hear how things worked out.
    OM
    "You can do good or you can do well. Sooner or later they make you choose." MI5
    Mod Squad
    2009 F800GS 1994 TW200

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