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Gated 430 warning lights, any help would be great!

Discussion in 'Technical Q&A' started by ExoticItalian, Sep 8, 2025 at 10:33 AM.

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  1. ExoticItalian

    ExoticItalian Rookie

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    ben moskowitz
    #1 ExoticItalian, Sep 8, 2025 at 10:33 AM
    Last edited: Sep 8, 2025 at 10:50 AM
    Good Morning.

    Factory gated 430, ediff-suspension-cst and brake light warnings all on. Replaced battery, canbus system measures out good, sent ABS module for testing and came back good. Swapped the suspension and ediff modules. Swapped the cluster and the ABS module from a good doner.

    Live data shows wheel speed sensors operating, yaw reading and SAS working fine as compared to a good 430. Have found no open wires or shorts in any harnesses. Everything seems to operate fine but yhe warnings will not dissappear. All powers and gnds at all affected modules are good, canbus voltages and resistance good.

    When monitoring the suspension live data for canbus, data shows CAN wire failure with minor error. All modules show no error. The only thing I haven't physically inspected is the yaw sensor but it reads as compared to another car.

    Any help would be great! This one has me stumped. Thanks in advance
     

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  2. flash32

    flash32 F1 Veteran

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    #2 flash32, Sep 8, 2025 at 10:45 AM
    Check battery voltage on cranking ..possible weak battery
    If not weak battery need to check pump cycles on E-diff and pressures with a daig tool differential system. Menu
     
  3. ExoticItalian

    ExoticItalian Rookie

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    #3 ExoticItalian, Sep 8, 2025 at 10:46 AM
    Brand new battery and voltage drop measurement is fine. Vehicle doesn't have to be cranked to trigger these faults
     
  4. flash32

    flash32 F1 Veteran

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    #4 flash32, Sep 8, 2025 at 10:50 AM
    Ok then we need to see if E-diff solenoid is working fine ..check recycle times, hydraulic and locking pressure in differential menu
     
  5. ExoticItalian

    ExoticItalian Rookie

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    #5 ExoticItalian, Sep 8, 2025 at 11:15 AM
    Ediff pressure of 50bar and locking went up to 8bar. Just compared to my test car and they act similar but the test car is an F1 trans and is more lively it seems with the locking pressures.
     
  6. flash32

    flash32 F1 Veteran

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    #6 flash32, Sep 8, 2025 at 11:23 AM
    timing of pump cycle was similar when driving at 25 mph straight .. you can look at pressure jumping to 50 ish to know when pump starts
     
  7. flash32

    flash32 F1 Veteran

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    #7 flash32, Sep 8, 2025 at 11:43 AM
    c2029 is the error I am trying to figure out -- the rest are noise to me
     
  8. ExoticItalian

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    #8 ExoticItalian, Sep 8, 2025 at 12:04 PM
    Agreed, and thats why i tested through the canbus. The vehicle ran great, went for a drive and 5min into the drive the dash lit up. These faults all set without starting the vehicle.
     
  9. flash32

    flash32 F1 Veteran

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    #9 flash32, Sep 8, 2025 at 12:29 PM
    so I understand .. you clear all dtcs and then go into the individual modules ( not a health scan) and all come back immediately ?
    Please wipe DTC out.. shut car off for 2 mins ... then turn key on and check individual modules for errors Let me know
    DId you try a battery disconnect as well and then check codes?
     
  10. ExoticItalian

    ExoticItalian Rookie

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    #10 ExoticItalian, Sep 8, 2025 at 1:10 PM
    The faults do not clear. I've done several battery resets, and left it off for the weekend and all same.
    It does have factory bluetooth but i don't have the wiring diagram for that and i dont believe its on the bus system
     
  11. flash32

    flash32 F1 Veteran

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    #11 flash32, Sep 8, 2025 at 1:20 PM
    So the tool doesnt clear any of them ?
     
  12. ExoticItalian

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    #12 ExoticItalian, Sep 8, 2025 at 1:23 PM
    nope and i've tried 2 different scanners
     
  13. flash32

    flash32 F1 Veteran

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    #13 flash32, Sep 8, 2025 at 1:48 PM
    The last time I saw this it was a faulty vertical acceleration sensor but I had that code as well and it cascaded the others
     
  14. ExoticItalian

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    #14 ExoticItalian, Sep 8, 2025 at 2:51 PM
    Well, thats the 1 component i haven't swapped and definitely in this fun ABS loop i seem to have issue with
     
  15. flash32

    flash32 F1 Veteran

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    #15 flash32, Sep 8, 2025 at 3:00 PM
    Maybe disconnect it and see the difference of codes
     
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  16. ExoticItalian

    ExoticItalian Rookie

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    #16 ExoticItalian, Sep 9, 2025 at 8:17 AM
    I disconnected it and still had all faults. Swapped on in and all faults have now gone away! YAW sensor it was.

    Thanks for the help! this one was fun!
     
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  17. flash32

    flash32 F1 Veteran

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    #17 flash32, Sep 9, 2025 at 10:06 AM
    Glad I could help and you are good to go

    Normally a C1360 shows up in ABS system ..did the tool communicate with abs system
     
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  18. ExoticItalian

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    #18 ExoticItalian, Sep 9, 2025 at 1:29 PM
    No, only in ediff. When i unplugged the ABS i was able to erase all those other faults so i sent the ABS unit out for rebuild. When the unit came back and noting changed it was time to jump down the rabbit hole.
     
  19. flash32

    flash32 F1 Veteran

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    #19 flash32, Sep 9, 2025 at 2:05 PM
    Now that makes sense ... that error was hidden .. i know the launch line-up has issue with ABS system
    I wonder if a autel ap200 would have seen it
     
  20. ExoticItalian

    ExoticItalian Rookie

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    #20 ExoticItalian, Sep 9, 2025 at 2:32 PM
    Had the same faults in the same places with a leonardo i borrowed for a few hrs.
     
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  21. flash32

    flash32 F1 Veteran

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    #21 flash32, Sep 9, 2025 at 2:35 PM
    strange cant get into abs system
     

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