430 No communication with ABS & Airbag | Page 2 | FerrariChat
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430 No communication with ABS & Airbag

Discussion in 'Technical Q&A' started by gscavalli, Jan 24, 2024.

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  1. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    7,083
    Central NJ
    Full Name:
    Dominick
    #26 flash32, Jan 25, 2024
    Yes ..not getting the pressure it needs

    Sent from my moto g power using Tapatalk
     
  2. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    7,083
    Central NJ
    Full Name:
    Dominick
    #27 flash32, Jan 25, 2024
    Fir those reading and trying to follow my theory

    The accumulator collapsed and filled with fluid ..hence low fluid in tank ..no visible leaks

    Will pull ediff hoses to make sure no internal leaks as well

    Also will check gear oil for any contamination

    Need to OP these things as well lol

    Sent from my moto g power using Tapatalk
     
    Qavion likes this.
  3. gscavalli

    gscavalli Rookie

    Mar 29, 2021
    13
    Brazil
    Full Name:
    Guilherme Steimbach Cavalli
    #28 gscavalli, Jan 30, 2024
    Guys, communication with modules are back! As we suspected, all the modules of OBD2 PIN 12 K-LINE were not communicating with the scan tool because one of them could be faulty. Following the tests above I found out the problem on Instrument Panel. Disconnecting Instrument Panel solved the communication issues with ABS, Airbag, E-DIFF and Airbag. Since the Instrument Panel uses CAN network to communicate with the scan tool I decided to unpin K-LINE from Instrument Panel's connector and guess what... Everything is working flawless - even the Instrument panel- , no fault codes, no communication issues with any modules! I belive OBD PIN 12 K-LINE for Instrument Panel is a backup line in case of problems with CAN ? Or maybe it's used on cars with TPMS Module...

    Right now I'm just waiting for the pressure accumulator for the F1 System, thanks to Dominick that helped me diagnosing the F1 system!
     
    Qavion likes this.
  4. Qavion

    Qavion F1 World Champ
    Silver Subscribed

    Feb 20, 2015
    14,520
    Sydney
    Full Name:
    Ian Riddell
    #29 Qavion, Jan 30, 2024
    Weird.

    The Scud diagram shows the TPMS on the CAN C Bus, not the old CAN B K & L lines. Not sure what it could be used for. Reprogramming the Instru Panel?
     
  5. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    7,083
    Central NJ
    Full Name:
    Dominick
    #30 flash32, Jan 31, 2024
    Just curious if the diagnosis and activations within the dashboard module in the launch still work

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  6. gscavalli

    gscavalli Rookie

    Mar 29, 2021
    13
    Brazil
    Full Name:
    Guilherme Steimbach Cavalli
    #31 gscavalli, Feb 2, 2024
    Hello guys.

    Pressure accumulator replaced and right now F1 System is holding hydraulic pressure as it should. I have no more fault codes on transmission module, car runs great! ABS/CST Lights are back on tough, but now I'm able to read fault codes. So ABS Fault code is C1266 "ABS PUMP MOTOR"

    Image Unavailable, Please Login

    I'll start with brake bleeding but probably ABS Pump is bad since I already tested grounding points and power supply to ABS Unit... Any suggestions?
     
  7. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    7,083
    Central NJ
    Full Name:
    Dominick
    #32 flash32, Feb 2, 2024
    Hi

    Glad Ian and I helped you

    Sounds like a bad pump .. but like you said do a good flush and maybe try to activate it by tool or by driving/ braking on sandy road and see if it goes away
    Also - make sure battery voltage is good even at cranking
     
    Island Guy likes this.
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