Battery died, key doesn't work, RFID program thingy is gone
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Thread: Battery died, key doesn't work, RFID program thingy is gone

  1. #1
    NTU
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    Battery died, key doesn't work, RFID program thingy is gone

    Hey guys! OK, so while working on the timing belt and the battery disconnected, the battery lost it's charge and the computer forgot the key's RFID programming stuff, is there any possible way to re-program and re-sync the key to the car without taking it to a dealer? They key doesn't work anymore because the battery has been disconnected for a long time and there is this complicated key RFID thing that I'm not familiar with, and a dealer wants to charge me 600 bucks for a new key thing.

    Thanks!

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  3. #2
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    Why do you think it is an RFID programming problem, what are the symptoms ?
    If you think $600 is below your status, you could offer them $1200.
    Honeywagon likes this.

  4. #3
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    The RFID programming does not depend on the battery; it's committed to flash memory.

    And the answer to your question is no.

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    Moderate Moderator Steve in Chicago's Avatar
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    Quote Originally Posted by Tomvw View Post
    ....what are the symptoms?
    This ^^^

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    Moderate Moderator Steve in Chicago's Avatar
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    Quote Originally Posted by NTU View Post
    ...so currently the vehicle is at TF works, having the AEM Infinity ECU tuned properly, but they said they'd need some time on it considered they never worked on an Infinity unit for a Volkswagen engine before, mostly BMW, Toyota, and GM vehicles, so when they're done, I'll post pictures. In the mean time, since it is about 30 miles from my house in a high-end tuning facility, can anyone offer me some insight on the AEM water / meth injection kit I posted?
    Quote Originally Posted by NTU View Post
    ...so while working on the timing belt and the battery disconnected, the battery lost it's charge and the computer forgot the key's RFID programming stuff, is there any possible way to re-program and re-sync the key to the car without taking it to a dealer? They key doesn't work anymore because the battery has been disconnected for a long time and there is this complicated key RFID thing that I'm not familiar with, and a dealer wants to charge me 600 bucks for a new key thing.
    Um...... which is it?

  7. #6
    NTU
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    It's the PES ECU, not the AEM. There's no cheaper way around it? For a new key thing... There is no way to save the key?

    And the symptoms are that the key doesn't work because of the paranoid security features of the car and how the key and the ECU are practically synced. I don't understand the whole mechanism, I haven't reverse engineered the whole thing, nor do I plan it, but do you know of anyone who has? Like a third party hacker guy dude thing that can do it for me.

    NTU

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    What are your symptoms? When you turn the key what happens?


    Sent from AutoGuide.com App

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    Old Man Tan
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    Quote Originally Posted by vwb5t View Post
    What are your symptoms? When you turn the key what happens?


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    not much happens, since the car doesn't exist.

  10. #9
    Moderate Moderator Steve in Chicago's Avatar
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    Now the challenge is to figure out who it is.

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    I break for old people Bdubskii's Avatar
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    Quote Originally Posted by V4VanGelder View Post
    not much happens, since the car doesn't exist.

  12. #11
    Resident a-hole knowitall
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    Quote Originally Posted by V4VanGelder View Post
    not much happens, since the car doesn't exist.
    My point exactly


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    SuperCooled30V Moderator keithwbloom's Avatar
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    Quote Originally Posted by NTU View Post
    And the symptoms are that the key doesn't work because of the paranoid security features of the car and how the key and the ECU are practically synced
    Have you checked your security system Xanax reservoir? Security systems are rarely paranoid unless someone is really trying to hack your car ignition. In any case, if your Xanax tank is low, drop a few loose capsules of any garden-variety anti-anxiety medication in your fuel tank, and it will chill your security system out and let you start the car.




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    Last edited by keithwbloom; 10-28-2013 at 12:55 PM.
    2007 S4 Cabriolet 6MT, 2004 GLX SC/IC 30V V6 5MT

  14. #13
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    Have you tried sandblasting the "complicated key RFID thing" and the ECU ?

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    I was kind of thinking that he should buy a $2000.00 key (from me of course, I need the money!) to go with the $2000.00 tranny he has. Hmmmm.

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    I break for old people Bdubskii's Avatar
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    Quote Originally Posted by Randall375 View Post
    I was kind of thinking that he should buy a $2000.00 key (from me of course, I need the money!) to go with the $2000.00 tranny he has. Hmmmm.
    I've got a replacement blade he can toss in the bundle for an extra $950.

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