Question about Porsche Cayenne

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My 05 Cayenne S has the 'immobilizer active' and I can't seem to diable or get rid of it. Must have something to do w/ my 'Key Battery Replacement' light coming on; please help?

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I have the same problem with you now....

Posted on Sep 17, 2010

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No start . no immobilizer key light seen. when reconnect and connect battery key light appears then i can start. what causes this?


try using a scan tool to reset the immobilizer system
remember that every time the battery is disconnected the immobilizer activates

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You will need to have the security system control module scanned to see why it is being falsely signaled to lock out the engine. Most likely the key sensor or the key has failed, try a spare key if you have one, also replace the battery in the remote if you never have just to be sure.

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Vw beetle does not start. seems like its some kind of anti theft protection. the car/key icon lights up, it turns over for a second , then off. this is the first time this has happened, but we bought it...


First of all you need to programm all ignition keys using suitable diagnostic equipment (VAS, VAG-Com) connected to the data link connector of the car.

You have an electronic immobilizer key recognition problem. Now your key chip is not recognized by the transponder antenna fitted on the ignition switch barrel.

  • Everytime when you had a new key you must programm all available ignition car keys before trying to start the engine with this new key !!!
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    tdisline_775.jpg

    This warning lamp indicates that the engine is locked by the immobilizer system, and the engine start sequence must be repeat again.

    From year 1995 in Audi-VW (VAG) cars is used engine immobilizer. The VAG group immobilizer system consists of an immobilizer ECU which controls the recognition of keys and the Engine Management ECU system. Immobilizer is activated when the ignition key is removed and, together with the engine control unit, largely prevents unauthorized starting of the engine. The system uses a transmitter and receiver unit in the ignition key (transponder). Whenever an attempt is made to start the engine, it transmits a new code to the car's electronics. The immobilizing is only cancelled and car motor electronic receives permission to start engine if the key sends a right authorization code.

    tdisline_776.jpg

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    Immobilizer active reset on 2006 volkswagon passat


    First of all you need to programm all ignition keys using suitable diagnostic equipment (VAS, VAG-Com) connected to the data link connector of the car.

    You have an electronic immobilizer key recognition problem. Now your key chip is not recognized by the transponder antenna fitted on the ignition switch barrel.

    tdisline_775.jpg


    This warning lamp indicates that the engine is locked by the immobilizer system, and the engine start sequence must be repeat again.

    From year 1995 in Audi-VW (VAG) cars is used engine immobilizer. The VAG group immobilizer system consists of an immobilizer ECU which controls the recognition of keys and the Engine Management ECU system. Immobilizer is activated when the ignition key is removed and, together with the engine control unit, largely prevents unauthorized starting of the engine. The system uses a transmitter and receiver unit in the ignition key (transponder). Whenever an attempt is made to start the engine, it transmits a new code to the car's electronics. The immobilizing is only cancelled and car motor electronic receives permission to start engine if the key sends a right authorization code.

    tdisline_776.jpg

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    C200?

    Is your 2nd key fob giving you the same problem?

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    If you using a dead key fob then alarm system will immobilize the ignition system.







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