in need of an SD2 Sport mode not working | FerrariChat
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in need of an SD2 Sport mode not working

Discussion in '360/430' started by dan the man, Feb 2, 2013.

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  1. dan the man

    dan the man Karting

    Nov 5, 2003
    146
    Alabama
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    Daniel
    #1 dan the man, Feb 2, 2013
    Does anyone have an SD2 near Mobile AL? 2003 360 F1. push Sport mode and the word sport lights up for a second and goes off. No other indication. No physical damage that I can find with the sensors. Car rides normal.

    Any suggestions? I think it is time to see what the SD2 can do.

    Thanks,
    Dan
     
  2. eric355

    eric355 Formula 3
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    Nov 30, 2005
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    Toulouse (France)
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    Eric DECOUX
    #2 eric355, Feb 2, 2013
    It could be your switch which is worn and can just close the contact temporarily.
    Does-it help if you maintain the switch toward the Sport position?
     
  3. dan the man

    dan the man Karting

    Nov 5, 2003
    146
    Alabama
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    Daniel
    #3 dan the man, Feb 3, 2013
    If I hold the switch down the light stays on until I release it. But, there is no change in the ride or suspension settings.

    If I toggle the switch several times, the light will then stay on for about 3 or 4 seconds and then go off.

    If I toggle it enough times it will start flashing the symbol of the car "Suspension System" on the multifunction display. I think this is more because I toggle the switch too much. the car does not do anything different at this time either. As soon as I turn off and restart the car this warning goes away.

    The switches there are the same, except for the stenciling. So I switched it with one of the other switches and it all did the same. The sport switch worked in the other spots, and the other switches did not work any different in the sport switch position.

    Thank you,
     
  4. eric355

    eric355 Formula 3
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    #4 eric355, Feb 4, 2013
    The Sport mode circuit is rather simple. I have posted a diagram in this thread : http://www.ferrarichat.com/forum/360-430/192922-modification-race-mode-cs-sport-mode-360-a-2.html

    I would suggest that you measure the voltage on pins 15 and 9 of the suspension ECU. On both pins, you should find #0V in Sport mode and #12V in Normal mode.

    As the output of the suspension ECU is connected to the dash (and so to the other ECUs through the CAN bus), a faulty one could prevent the selection of Sport mode for all the other ECUs.
     
  5. tazandjan

    tazandjan Three Time F1 World Champ
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    Jul 19, 2008
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    Terry H Phillips
    #5 tazandjan, Feb 4, 2013
    Eric- Good advice. Swapping a similar switch and seeing if that solves the problem is another diagnostic that can be done. Just make sure it is another simple on-off switch.
     
  6. dan the man

    dan the man Karting

    Nov 5, 2003
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    Alabama
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    Daniel
    #6 dan the man, Feb 4, 2013
    Eric,

    Thanks for the information. I take it from what you are saying that if the outputs are not 0V and 12V respectively, the suspension ECU may be bad.

    also, does the switch send a constant signal to the Suspension ECU while the sport mode is on or is it toggle on, toggle off?

    So the dash sends a signal to the other ECU's when the light is on? If this is the case, and when I hold the button down the dash light stays on it should put it in sport mode with respect to the other ECU's, correct?

    Thanks,
     
  7. eric355

    eric355 Formula 3
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    #7 eric355, Feb 5, 2013
    Wow, I didn't paid enough attention to your post #3.
    All the switches are not the same. Only the Sport switch is bistable : in Normal mode the contact is opened, in Sport mode it is closed (and should stay closed). All the other switches are monostable, the contact is closed momentarily when you press the switch then it opens again.
    It seems that your Sport switch is faulty because you mention that the light stay on if you maintain the switch. It is not so easy to discriminate the Sport mode from the Normal mode on the suspension but, as you have a F1, you can check easily if yes or no your TCU is in Sport if you maintain the switch.

    For what regards the voltages, you should measure a steady 12V on both pins when you are in Normal mode, and a steady 0V on both pins in Sport mode.
     
  8. vrsurgeon

    vrsurgeon F1 World Champ
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    #8 vrsurgeon, Feb 5, 2013
    Mine did the same thing.

    Bad switch. Replaced it and works perfect. They wear out.
     
  9. dan the man

    dan the man Karting

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    Daniel
    #9 dan the man, Feb 5, 2013
    Thanks Eric, I will replace the switch. I am glad it has come to something simple.

    Dan
     
  10. Dryfly

    Dryfly Karting

    Jun 30, 2012
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    Seattle area
    #10 Dryfly, Oct 4, 2014
    I have the identical problem in my 2002 F360 6 speed car. The exhaust was changed to TUBI before I got the car (if that matters).....did switch replacement work/solve the problem?
    Where can I buy one online?
    Thanks
    Brian in Seattle
     
  11. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,169
    Clarksville, Tennessee
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    Terry H Phillips
    #11 tazandjan, Oct 4, 2014
  12. Dryfly

    Dryfly Karting

    Jun 30, 2012
    147
    Seattle area
    #12 Dryfly, Oct 11, 2014
    Thanks Terry!
    Excellent advise, sport light now remains lit, now........if it would just stop raining in Seattle....anxious to try my car in "Sport" mode for the first time!
    Brian
     

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