Immobiliser. How does it work?
Posted 16 October 2005 - 01:33 PM
Posted 16 October 2005 - 08:53 PM
If its a factory fit imobiliser its virtually impos to bypass as most of the imobillisation is part of the ECU and the code is always the same as the transponder is in the key and the reciever around the barrel,most are recepticles but still in order to bypass it takes quite a bit of work,a typical way and imobiliser works is when yer open yer door it begins to search for the right code which will be on or in yer car key when its in ignition it reads it and closes all open circuits it has created,no the code cant keep changing cos yer spare key would stop working.
Posted 18 October 2005 - 07:58 PM
It can change, because the code can be dependant on the key.
Moreover, I believe the newer systems are based on Public/Private key algorithms. And so the system would have the key pair associated with each key.
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Correct, the majority of alarm/immobilisor set ups utilise a rolling code, this is however, contrary to popular belief, not a random code, so each key will follow the same pattern, albeit with 1,000,000,000's of permutations.
Posted 18 October 2005 - 08:57 PM
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