Lost Keys - 2004 Prius (Reprogamming)

Discussion in 'Gen 2 Prius Main Forum' started by 437115, Nov 24, 2019.

  1. 437115

    437115 New Member

    Joined:
    Nov 24, 2019
    2
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    Location:
    Australia
    Vehicle:
    2004 Prius
    Model:
    i-Tech
    So we’ve stupidly lost all our keys to our 2004 Prius, VIN number starting with JTDKB(Gen 2 - No smart access) I managed to buy some second hand key fobs. From what I can see in these forums my steps are:


    1) Buy Mini VCI cable and install Techstream

    2) Hook up computer to car and use techstream to generate 96 hex code which I use to get a reseed code?
    the end of the "don't lose your keys or else" myth | PriusChat

    3) Then reset ECU and erase current fob keys.


    My questions are:

    - How do I get the reseed code? Can someone on this forum help me with that?

    - How do I erase the second hand fob keys, will they be erased when I reprogram?

    - Could this process cause major damage to the computer unit in the car?

    - Not sure if my car is imported from JAP, will that make a difference?

    Any help is greatly appreciated.
     
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  2. SFO

    SFO Senior Member

    Joined:
    Feb 7, 2017
    4,121
    3,847
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    Location:
    Northern California
    Vehicle:
    2007 Prius
    Model:
    N/A
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  3. 437115

    437115 New Member

    Joined:
    Nov 24, 2019
    2
    2
    0
    Location:
    Australia
    Vehicle:
    2004 Prius
    Model:
    i-Tech
    Thanks very much, ill give that a go but currently:

    I've bought the cable and installed techsteam v13-00-022 but I get the unable to connect to VIM error.

    My steps were:

    1.Connect OB2 cable
    2. turn on laptop
    3. open techstream
    4. clicked connect to vehicle

    is this correct?
     
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  4. MilkyWay

    MilkyWay Active Member

    Joined:
    Feb 20, 2013
    789
    341
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    Location:
    MI
    Vehicle:
    2007 Prius
    Model:
    II
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  5. JayRock_PHX

    JayRock_PHX Member

    Joined:
    Oct 10, 2018
    83
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    0
    Location:
    phoenix az
    Vehicle:
    2010 Prius
    Model:
    Three
    Make sure the vim is selected under techstream settings.
     
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