Let my battery go flat..... | FerrariChat

Let my battery go flat.....

Discussion in '360/430' started by RennSport93, May 16, 2018.

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  1. RennSport93

    RennSport93 Karting

    Mar 7, 2016
    201
    Pittsburgh
    Full Name:
    Joe Bellisario
    Hello Everyone! Hope everyone has been doing well!
    Anyway,this winter I foolishly let my 360's battery go flat. I did not jump it,but instead put a new battery in it. The car will now crank but not start. It appears as if some security measure is stopping it from getting fuel or spark. Any help would be greatly appreciated!!
     
  2. arizonaitalian

    arizonaitalian Two Time F1 World Champ
    Owner Silver Subscribed

    Oct 29, 2010
    20,507
    Wyoming
    Some folks will come along and offer ideas...in the meantime, do try the "search" function a lot in this forum. This type of thing has happened many times before and thus there is a lot of information here...
     
  3. cpep

    cpep Formula Junior
    Silver Subscribed

    Nov 11, 2017
    438
    new york
    Full Name:
    CHARLIE
    Did you try locking and unlocking with the key fob. I know when my alarm does something wacky that tends to help. I'm guessing you don't get a pump run when you open the drivers door.
     
    whatheheck likes this.
  4. RennSport93

    RennSport93 Karting

    Mar 7, 2016
    201
    Pittsburgh
    Full Name:
    Joe Bellisario
    The search function was great for what to do when my battery went dead, but hasnt been much help with the new issue,unfortunately.
     
  5. RennSport93

    RennSport93 Karting

    Mar 7, 2016
    201
    Pittsburgh
    Full Name:
    Joe Bellisario
    I have tried that plenty and have also changed the fob battery. The issue seems to be immobilizer related,so i think you’re on the right track.
     
  6. Red 27

    Red 27 Formula 3

    Feb 2, 2008
    1,002
    San Diego, Ca
    Full Name:
    Dave
  7. Bob in Makiki

    Bob in Makiki Formula Junior
    Owner Silver Subscribed

    May 30, 2017
    455
    Honolulu
    Hey Joe. I hope you can get this sorted out.

    There is a battery kill switch in the trunk, so the car is designed to have the battery cut out and then turned back on, and to start when that happens. So, unless there is something different with letting a battery go flat from cutting the battery out entirely (and their might be), it sounds like a different issue to me. There is also a separate battery for the immobilizer that is in the alarm siren unit. You can find threads here where people have successfully replaced just that battery. I began to have odd issues with the immobilizer and I just replaced the whole siren unit -- that fixed all the odd problems I was having.

    Can you hear a loud, strong beep (or two beeps) when you hit the key fob button? If not, then it that may suggest the problem is in the immobilizer battery. When I replaced my siren (and battery) the beeps when I hit the key fob button got much louder, so that may be one way to judge the strength of the immobilizer battery.

    Good luck! It sounds frustrating.
     
  8. RennSport93

    RennSport93 Karting

    Mar 7, 2016
    201
    Pittsburgh
    Full Name:
    Joe Bellisario
    Sorry for the late response,anyway the car has finally started. We gave up diagnosing everything and had actually made arrangements for the car to go to MD to be fixed. The trailer pulls up to take it and IT STARTS OUT OF NOWHERE. So I can not verify what the issue was. The only issue now is that an Airbag light has come on.
     
    Bob in Makiki likes this.
  9. Skidkid

    Skidkid F1 Veteran
    Owner Rossa Subscribed

    Aug 25, 2005
    9,531
    Campbell, CA
    Full Name:
    John Zornes
    Good news. It sounds like the low voltage put the system in an indeterminant state. Power cycling the system probably cleared it. BUT I believe you will need an SD to clear the airbag light.
     
    RennSport93 likes this.

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