BMW CAS2 with CA - qurious
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  1. #1
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    Default BMW CAS2 with CA - qurious

    Hi guys,

    Today got a car with CAS2 + CA
    E91 - 2005

    It has a bit strange behaviour, because got 4 keys and only 1 working as expected.
    key0: service key - not even get ignition, looks like no detect transponder.
    key1: original CA remote key - got ignition, but remote and CA not work
    key2: original CA remote key - no ignition, car refuse key
    key4: CA remote key - got ignition and CA, remote works fine.

    programmed a CA key for key3, expected as will work, for get at least 2 properly working key, but strangely car refuse also that key, as key2.

    all key's id verified by VVDI Key Tool.

    FVDI says all keys disabled except only key1 enabled.

    If I'm right CA only depends on key type bits, and the first 2 CA type could work as CA. All keys should start car. My opinion is that something messed up in EEPROM when (the last) key4 programmed, specially about that part where the blocked / not blocked data contained, but somehow CRC's correct.

    Anyone met something like this or can check with some tool the eeprom's dump or should move keys data to other CAS?


    Original CAS dump:
    https://oc.lacc.hu/index.php/s/GErtiSJNAHhEunW

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    Default cas2

    here you go check your keys with this file
    Attached Files Attached Files

  3. The Following User Says Thank You to ZAHEER For This Useful Post:

    kaleval (15th November, 2018)

  4. #3
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    Default

    Looks like KEY1 and KEY2 has some damage, because programmed new CA key, modified dump a bit follow by your idea, and now working fine.
    Service key, key3 and key4 so thanks your help!
    Last edited by kaleval; 16th November, 2018 at 06:33 PM.

  5. The Following User Says Thank You to kaleval For This Useful Post:

    ZAHEER (16th November, 2018)

 

 

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