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Stuck in wet mode after battery replacement

Discussion in '458 Italia/488/F8' started by Rajsb89, Apr 21, 2025.

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  1. Rajsb89

    Rajsb89 Rookie

    Apr 21, 2025
    2
    Full Name:
    Raj Bhandal
    #1 Rajsb89, Apr 21, 2025
    Hi, after replacing the battery on my 488, I’m now getting a series of faults: AVH System Failure, E-Differential, ESC System Failure, and it’s stuck in Wet mode.

    I’ve left the car connected to the battery conditioner, but the issues persist. To perform a full battery reset, should I completely disconnect the battery or just use the quick-release lever?

    I figured I’d check here first before making a trip to the dealer. Car drives fine with no issues.

    thanks.
     
  2. MANDALAY

    MANDALAY F1 World Champ
    Owner Silver Subscribed

    May 23, 2013
    14,259
    AUSTRALIA
    Full Name:
    ANGELO
    #2 MANDALAY, Apr 22, 2025
    A disconnected battery is a disconnected battery however I would always disconnect the earth.

    Now I had the same issue and it was drive slowly to the Ferrari dealership and got them to reset.
     
  3. Jrachetta

    Jrachetta Karting

    Feb 13, 2024
    58
    Syracuse, NY
    Full Name:
    Jon Rachetta
    #3 Jrachetta, Apr 22, 2025
    I just had this corrected myself. My battery died and tossed a ton of codes that stored. Dealer just did a reset of the system and everything all good now. Took about an hour or so you should be in and out.
     
  4. Rajsb89

    Rajsb89 Rookie

    Apr 21, 2025
    2
    Full Name:
    Raj Bhandal
    #4 Rajsb89, Apr 22, 2025
    Ok thanks, trip to the dealer it is.
     
  5. bakermiata

    bakermiata Rookie
    Silver Subscribed

    Sep 20, 2019
    16
    #5 bakermiata, Apr 22, 2025
    I believe these were the first F cars with "smart alternators" that need to have a relearn process performed by the dealer
     
  6. SAFE4NOW

    SAFE4NOW F1 Veteran
    Sponsor Owner

    Aug 25, 2004
    5,799
    Dallas Texas
    Full Name:
    If you know you know
    #6 SAFE4NOW, Apr 22, 2025
    Good point!

    Another thing that is being overlooked these days, is that the battery itself needs to be charged ( out of the car ) to 100% BEFORE being installed
    Otherwise the car takes the installed battery current state of charge as 100%, even if it's actually only 60%
    A new battery off the shelf is not always 100%

    S
     
    mdrums, Bob in Texas, MANDALAY and 3 others like this.
  7. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,674
    Central NJ
    Full Name:
    Dominick
    #7 flash32, Apr 22, 2025
    AS stated above make sure it is 100% and then drive it a little to see if it resets itself on the next few start-ups
     

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