12-03-2006, 12:12 PM
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Registered User
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Join Date: Feb 2004
Location: Walnut Creek, CA & 1,150 miles S of Key West
Posts: 4,874
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This is copied from a post Gilly wrote late Oct. If I am following along correctly it looks like he says you can have up to 8 keys at a time.
Quote:
The transponders in the key work without batteries. Similar to the "Speedpass" things you can "wave" at the gas pumps to charge for gas. Inserting the key powers the transponders inductively. There are 2 transponders, a fixed and a rolling code. The "fixed" code identifies the key to the vehicle as being correct. The rolling code, sort of like a automatic garage door opener, is a security code which changes after the key is used, different every time. Every key has 200,000 rolling codes. If it ever manages to work that long, it won't work after 200,000 starts. Each key can be replaced twice. You can have up to 8 keys at a time. This gives a total of 24 keys, but again you can only have 8 at the same time, not all 24, at least not that would all work. Enough details?
Gilly
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__________________
Terry Allison
N. Calif. & Boca Chica, Panama
09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)
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