Power Steering mulfunction go to the dealer | Page 2 | FerrariChat

Power Steering mulfunction go to the dealer

Discussion in '612/599' started by smggms, Aug 21, 2020.

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  1. Skidkid

    Skidkid F1 Veteran
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    John Zornes
    #26 Skidkid, Sep 3, 2020
    So, is the steering acting oddly or just the error code? As I recall, the ECU has some codes that can't be cleared with power down. BUT I am no expert so YMMV.
     
  2. smggms

    smggms Formula Junior

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    #27 smggms, Sep 9, 2020
    steering functionality ok .. no noise .. or any other issues .. just the message annoying ..



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  3. smggms

    smggms Formula Junior

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    #28 smggms, Sep 9, 2020
    Thank u for searching this issue ..
    Do U know the solenoid location ?
    And what the functionality? What one suppose to experience when it’s faulty?



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  4. brogenville

    brogenville Formula 3
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    #29 brogenville, Sep 10, 2020
    The function of the solenoid is to open and close rapidly to supply hydraulic assistance to the steering rack movement. The valve will spend more time open at low speed when you want more assistance, and proportionately more time closed as you increase speed to weight up and increase feel.

    Given that your steering still feels normal, you're obviously still getting assistance. My guess then is that the solenoid is stuck in the open position. The solenoid is kinda spark plug shaped with an electrical connector attached to it, and screws into the steering rack at the base of the steering column.
     
  5. brogenville

    brogenville Formula 3
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    #30 brogenville, Sep 10, 2020
  6. smggms

    smggms Formula Junior

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    #31 smggms, Sep 22, 2020
    I was able to disconnect the solenoid connector and cleaned it.
    The steering Become heavy and not comfortable to drive .. scanned with autel no reading for voltage. Amp or speed
    The message still there ..

    I connected it again steering normal and all reading back
    Message still there

    Does this so mean the solenoid is working properly?





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  7. smggms

    smggms Formula Junior

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    #32 smggms, Sep 22, 2020
    I disconnect ECU too and the message still there..



    I think it wiring issue ..
    Do u have wire / fuse diagram ?
    To follow the solenoid wiring


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  8. brogenville

    brogenville Formula 3
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    #33 brogenville, Sep 23, 2020
    It does seem as if the solenoid is working properly- i.e not stuck open or closed, and is getting the signal from the steering ecu to open.

    If its cheap, and you're running out of ideas, I would be tempted to swap it out anyway. Never great just throwing parts at a problem, but other than a wiring issue or a fault with the steering ecu itself, I'm not sure what the other options are.

    Yeah, I can get you the steering wiring diagram. Stand by.
     
  9. smggms

    smggms Formula Junior

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    #34 smggms, Sep 23, 2020
    is the solenoid valve removable? what size the screwes
     
  10. brogenville

    brogenville Formula 3
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    #35 brogenville, Sep 24, 2020
  11. smggms

    smggms Formula Junior

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    #36 smggms, Sep 24, 2020
  12. smggms

    smggms Formula Junior

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    #37 smggms, Sep 24, 2020
    sorry for late reply :)
    yes i did .. and also i touched pos and neg cabels after removed them ( recomendation from ferrari tech this will erase every thing )
     
  13. brogenville

    brogenville Formula 3
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    #38 brogenville, Sep 25, 2020
    No idea what the Allen bolt size is. I can promise it won’t be anything non-standard.

    Below is the wiring diagram for the steering ecu. Very little to it.

    Pin 1 - 12v
    Pin 2 - connection to body ecu
    Pin 3 - connection to instrument cluster
    Pin 4 - connection to OBD port
    Pin 5/6 - connection to solenoid valve
    Pin 7 - ground


    Image Unavailable, Please Login


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  14. flash32

    flash32 F1 Veteran

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    #39 flash32, Sep 25, 2020
    Is that Mitchell or alldata ?

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  15. brogenville

    brogenville Formula 3
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    #40 brogenville, Sep 26, 2020
    Not sure what they are; this is taken from the Ferrari dealer diagnostic software.


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  16. smggms

    smggms Formula Junior

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    #41 smggms, Sep 26, 2020
    Last edited by a moderator: Sep 26, 2020
    Thanks for the picture..
    do U know if Any of these wires run
    Inside the car? Under driver passenger seat?

    The reason I’m asking 3 months ago I had similar issues but was airbag
    The car at that time under power 15 warranty .. expired in June this year

    See the attached what the tech found
    Image Unavailable, Please Login



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  17. donv

    donv Two Time F1 World Champ
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    #42 donv, Sep 26, 2020
    Just a thought, but I assume the steering ECU has a connector of some sort-- have you tried spraying that with contact cleaner?

    I get that warning on occasion, almost always when I start the car before letting it go through it's various self tests.
     
  18. smggms

    smggms Formula Junior

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    #43 smggms, Sep 26, 2020
    Yes I did
    Also the solenoid connector
    Not effecting steering are all
    Just annoying always there



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  19. smggms

    smggms Formula Junior

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    #44 smggms, Oct 12, 2020
    So finally I got the solenoid valve and ECU To rule out the issue .

    The plan to change one at the time , to see what the cause .

    Before starting replacing parts ..

    Believe it or not The error message gone .
    It’s now the 3rd day and no more (Power steering fault go to dealer )...

    The error message Now Replaced with alarm failure go to dealer lol,,



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  20. donv

    donv Two Time F1 World Champ
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    #45 donv, Oct 12, 2020
    Do you keep the car on a battery charger? How long does it sit between drives, with no charger?
     
  21. smggms

    smggms Formula Junior

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    #46 smggms, Oct 13, 2020
    usually I don’t
    If I’m driving on weekend or at least once a week


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  22. brogenville

    brogenville Formula 3
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    #47 brogenville, Oct 13, 2020
    Well at least nobody can accuse Ferrari ownership of being boring!

    Is there any chance that some component got moisture inside it, and its just taken this long to fully dry out?
     
  23. smggms

    smggms Formula Junior

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    #48 smggms, Oct 13, 2020
    I doubt it, it’s 110F degree here..
    Lowest 90 F
    No rain .
    It’s weird .. how started .. and ended.. the million dollar question..is it possible it needed that many drive cycles to reset the code?


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