Patent ID: 6204570
Filing Date: 2001-03-20
Classification: B60R

Abstract:
A method for initializing an anti-theft system of a motor vehicle, the anti-theft system having a total number of portable electronic keys which, when required, each independently emit a code signal as an authentication signal, the code signal being received by an electronic lock in the motor vehicle and compared with a setpoint code signal being one of stored and generated in the lock, the method which comprises:performing an initialization of the portable electronic keys and of the lock, which includes:choosing a new total number of all the portable electronic keys assigned to a lock of an anti-theft system;forming new coding data, the new coding data being formed using code signals from all but one, of the previous portable electronic keys and using code signals from the lock;storing the new coding data together with the new total number of the portable electronic keys, in all of the portable electronic keys and in the lock; anddeactivating all the previously valid coding data in the portable electronic keys and in the lock.