Getting keys made without a dupe

[Ti Kan]

Bernard Littau writes:
> Now, on modern cars, having a key is only part of the equation.  On our
> Saab, one needs the correct key to turn the lock, but one also needs a
> transponder code (typically embedded in the key) to enable the ECU.  Keys
> (really transponders) are married to the car via having the car and the
> key/transponder and an ECU scan tool and a tech all together to perform the
> marriage.  If the ECU does not recognize the transponder code, no go.  Yes,
> if the little battery on the transponder dies, you are stuck.

On recent VWs and Audis the key also incorporates the transponder for
the immobilzation system.

> I see that thumb print scanners are getting quite inexpensive, I wonder how
> long before a car is sold with a thumb print scanner either replacing, or in
> addition to, a key.  Here is one for home use I just looked up.  I saw one
> this past January at the home show for $350 or so.
> http://www.keylesspro.com/biometric.htm

The latest Audi A8 has this feature, but I don't think it will be
offered in the US initially.  Not only is the thumbprint used for
security unlock, it is also used to individualize the settings of
all the car's systems, such as seat, steering wheel, seatbelt, mirror
positions, favorite radio and climate control settings, etc.

-Ti
2003 A4 1.8T multitronic
2001 S4 biturbo 6-sp
1984 5000S turbo
1980 4000 2.0 5-sp
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    ///  Ti Kan                Vorsprung durch Technik
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