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  1. #1
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    Default New fault code C0042

    I just replaced front brake pads, rotors, and rear tire. Now the 2013 RT Limited throws Brake Faults on display. Tried the display reader trick and received a C0042 code which isn't anywhere I can find. Anyone know what's going on? I had a stuck caliper that started all this and now my pedal is softer than it's ever been. Not sure I like the long travel.

  2. #2
    Very Active Member cuznjohn's Avatar
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    are you sure that is the code you got, i could not find it either
    NO BIKE AT THIS TIME

  3. #3
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    I just took it out again and verified. Sort of random events cause it but definitely I get BRAKE FAILURE message and then the console can be used to display C0042.

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    Very Active Member Highwayman2013's Avatar
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    Did you bleed the brakes?
    2016 F3 Limited
    2019 Ryker Rally
    2014 Suzuki V Strom 650
    2020 CSC TT 250

  5. #5
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    Quote Originally Posted by Highwayman2013 View Post
    Did you bleed the brakes?
    Bled the brakes, front and rear, no bubbles. Saw in shop manual something about VMC (VCM) bleeding? Know anything about that?

  6. #6
    Very Active Member trikermutha's Avatar
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    Attached Images Attached Images
    Last edited by trikermutha; 10-04-2015 at 05:57 PM.

  7. #7
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    Tough read on image but helped find the page in my manual. Now to figure out WTH that module is located. Looks like under front Tupperware.

  8. #8
    Very Active Member trikermutha's Avatar
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    looks like somewhere around the front suspension area under the tupper ware.. behind wheel area
    Last edited by trikermutha; 10-04-2015 at 09:50 PM.

  9. #9
    Very Active Member garb55's Avatar
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    I think you need to be connected to the Buds system to activate the VCM and bleed it
    I read that somewhere
    should not need to bleed VCM unless you allowed the brake reservoir to suck in air
    Last edited by garb55; 10-04-2015 at 09:55 PM.
    Now 2014 RT Limited Cognac
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  10. #10
    Very Active Member finless's Avatar
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    You can bleed the brakes without BUDs but it wont bleed the ABS system as you cannot open it without BUDs.
    While doing this work never turn on the key. If you do it can log a fault that you might not be able to clear without BUDs.

    Bob
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  11. #11
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    Default Still no definition of C0042 code

    Quote Originally Posted by finless View Post
    You can bleed the brakes without BUDs but it wont bleed the ABS system as you cannot open it without BUDs.
    While doing this work never turn on the key. If you do it can log a fault that you might not be able to clear without BUDs.

    Bob
    I can't say anymore what I have done or not done with or without the key. I would suspect the good news is the error messaging will 'clear' itself from the display every time I shutdown the bike and will randomly rear it's ugly head during the next test ride or two.
    This all began back at the dealership when they 'mis-informed' me, do not want to go back there for BUDS service.


    Still shocked that no one has chimed in with a definition of a C0042 code!
    Site search yields zip. WWW search yields all but this vehicle.

  12. #12
    Very Active Member finless's Avatar
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    Quote Originally Posted by DonCopenha View Post
    I can't say anymore what I have done or not done with or without the key. I would suspect the good news is the error messaging will 'clear' itself from the display every time I shutdown the bike and will randomly rear it's ugly head during the next test ride or two.
    This all began back at the dealership when they 'mis-informed' me, do not want to go back there for BUDS service.


    Still shocked that no one has chimed in with a definition of a C0042 code!
    Site search yields zip. WWW search yields all but this vehicle.
    I looked in all the code documents I have including the new list that was published for 2014/15 and the new F3's.
    That code is not in any list I have! But it is inbetween codes all related to the VCM and brakes.

    Bob
    2011 RT-S SM5 - Black
    Bought June 2013 with 450 miles. 27K on 8-1-2017.
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  13. #13
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    Default abs bleed

    Quote Originally Posted by finless View Post
    You can bleed the brakes without BUDs but it wont bleed the ABS system as you cannot open it without BUDs.
    While doing this work never turn on the key. If you do it can log a fault that you might not be able to clear without BUDs.

    Bob
    works for cars, won't hurt to try, find loose gravel about 30 mph apply brakes hard so abs activates, do several times, this purges air out of system in a car, don't see why it won't work on spyder

  14. #14
    Member jimsrts15's Avatar
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    Default fault code C0042

    Sort or new to forum. C0042 is a VCM code meaning low break pressure switch (LPS). good luck J. Clark

  15. #15
    Member jimsrts15's Avatar
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    Default fault code C0042 cont.

    possible causes of C0042.
    LPS activated,
    Low brake fluid,
    Brake fluid leak,
    Air in hydraulic brake system
    LPS circuit failure,
    Master cylinder piston seal failure,

    possible service actions,
    Check LPS
    Check brake fluid level,
    Inspect for brake fluid leak,
    Bleed brake system to remove air in hydraulic brake system
    Check LPS circuit,
    Replace Master cylinder

  16. #16
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    Quote Originally Posted by spyderbee13 View Post
    possible causes of C0042.
    LPS activated,
    Low brake fluid,
    Brake fluid leak,
    Air in hydraulic brake system
    LPS circuit failure,
    Master cylinder piston seal failure,

    possible service actions,
    Check LPS
    Check brake fluid level,
    Inspect for brake fluid leak,
    Bleed brake system to remove air in hydraulic brake system
    Check LPS circuit,
    Replace Master cylinder
    That's what I needed, a direct reference to the code, thank you. We performed a manual bleeding process last night and found air in the VCM. The ryde is still on the lift for its oil change but I'm hoping that solved it. If not, I'll be walking down your list and looking for the gremlin.

  17. #17
    Very Active Member finless's Avatar
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    Quote Originally Posted by spyderbee13 View Post
    possible causes of C0042.
    LPS activated,
    Low brake fluid,
    Brake fluid leak,
    Air in hydraulic brake system
    LPS circuit failure,
    Master cylinder piston seal failure,

    possible service actions,
    Check LPS
    Check brake fluid level,
    Inspect for brake fluid leak,
    Bleed brake system to remove air in hydraulic brake system
    Check LPS circuit,
    Replace Master cylinder
    Where did you find this code? What documents? I have all the code documents from BRP and it doesnt list it.

    Bob
    2011 RT-S SM5 - Black
    Bought June 2013 with 450 miles. 27K on 8-1-2017.
    Farkles - DIY Trunk Break Light, HMT Break Light, DIY Mirror Turn Signal Lights, DIY Bluetooth Dongle, DIY iPod Setup, DIY Alarm System Install, Show Chrome front fender / rear saddle bag lights, 4th break light around the trunk, Vented Windshield, Baja Ron Sway Bar, DIY GPS setup, Smooth Spyder, BRP Chrome Mirrors, Adjustable deflectors, Triaxis handlebars, NVB Pegs, Bad Boy Airhorn... More to come

  18. #18
    Member jimsrts15's Avatar
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    Default Code C0042

    To Finless: Have BUDS.

  19. #19
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    Quote Originally Posted by DonCopenha View Post
    I just replaced front brake pads, rotors, and rear tire. Now the 2013 RT Limited throws Brake Faults on display. Tried the display reader trick and received a C0042 code which isn't anywhere I can find. Anyone know what's going on? I had a stuck caliper that started all this and now my pedal is softer than it's ever been. Not sure I like the long travel.
    Did you find solution for this problem ? I had the same thing and didnt know what to do
    20200915_190109.jpg

  20. #20
    aka: akspyderman ARtraveler's Avatar
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    This thread goes back to 2015.

    Currently Owned: 2019 F3 Limited, 2014 RTS-SE6 (yellow), 2015 Vulcan 900 LTD

    Previously : 2008 GS-SM5 (silver), 2009 RS-SE5 (red), 2010 RT-S Premier Editon #474 (black) 2011 RT A&C SE5 (magnesium). 6 Spyders, 11 years, 167,000 miles


  21. #21
    Very Active Member Fatcycledaddy's Avatar
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    This is quite interesting, even though this is years old it still pertains it sounds like.
    I now have 3600 miles on my 2020 RT Limited, and on the way home last night got a brake failure warning with code C0042.
    I have looked through the repair manual I purchased, the owners manual, Lamonsters code page, and as of yet have not found what C0042 is.

    I Turned the bike off, waited about 30 seconds, restarted it, and all lights were off and no more code showing on the screen.
    2015 RTL


  22. #22
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    Did you have your foot resting on brake pedal? I remember some having an issue with foot touching pedal long enough that the ECU throws a code.
    Not sitting at a red light,but rather riding for miles and the brake pedal is slightly depressed.
    Check the fluid level also.
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