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Fob unlocks doors but “key not detected” to start engine

Discussion in 'Gen 2 Prius Technical Discussion' started by jarrad reddick, Sep 5, 2024 at 2:04 PM.

  1. jarrad reddick

    jarrad reddick Junior Member

    Joined:
    Jan 6, 2018
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    Location:
    atlanta
    Vehicle:
    2005 Prius
    Model:
    N/A
    I started the car (2006) with jump box (12v had been having issues), disconnected box, it was running for maybe 5 minutes, I noticed a bit of white smoke coming from under hood driver side, I jumped in to turn the car off and noticed the car had turned itself off. Since that happened, I’ve gotten the Key Not Detected flashing light upon trying to start; even though the fob still works to lock and unlock the doors. Chicken dance obviously does nothing bc the car does not recognize the fob as the original fob. Battery fairly new in fob (but I will replace again). I’ve tried with the SKS button depressed and non-depressed. Looking for any feedback possible. Thanks
     
    #1 jarrad reddick, Sep 5, 2024 at 2:04 PM
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    you probably need a new 12 volt, but the smoke under the hood isn't good. any trouble lights on the dash?
     
    #2 bisco, Sep 5, 2024 at 2:09 PM
  3. MAX2

    MAX2 Member

    Joined:
    Aug 12, 2024
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    Location:
    Third Rock from the Sun
    Vehicle:
    2007 Prius
    Model:
    N/A
    Magic white smoke indicates that a new dad has been elected in your car, the old key will no longer be able to start the car.))

    Your fuses responsible for the operation of the starting systems and the hybrid installation have most likely burned out. This sometimes happens when the 12V battery is incorrectly connected.
    In the fuse box in the engine compartment, there is one large composite fuse that runs under transparent plastic.
    It looks like this fuse is damaged somewhere. Other fuses in this block may also burn out. Check their condition.
     
    #3 MAX2, Sep 6, 2024 at 2:28 AM
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