Patent ID: 6469616
Filing Date: 2002-10-22
Classification: B60R,G07C

Abstract:
A method for initializing an anti-theft system for a motor vehicle, wherein the anti-theft system includes:a key with a memory, a remote control unit for selectively locking and unlocking a central locking system, and a transponder for releasing an immobilizer, the memory storing code information; a receiver in the motor vehicle for receiving and evaluating signals from the remote control unit; and a transmitting and receiving unit on a lock of the motor vehicle; the method which comprises: initiating an initialization state of the receiver and of the transmitting and receiving unit; sending a request signal from the transmitting and receiving unit to the transponder; sending a response signal having code information back from the transponder to the transmitting and receiving unit; checking the response signal with the transmitting and receiving unit for authorization by comparing the code information contained in the response signal with expected and stored predetermined code information; emitting a coded starting value from the transmitting and receiving unit and sending the coded starting value to the key if the response signal was recognized as being an authorized response signal; storing the coded starting value in the memory of the key; and routing the coded starting value from the key to the receiver.