Patent ID: 6445282
Filing Date: 2002-09-03
Classification: B60R

Abstract:
A process for preventing motor vehicle theft, comprising:performing an activating operation for an anti-theft device; switching off a drive control device when the anti-theft device is activated in the activating operation; performing a deactivating operation of the anti-theft device; automatically generating and transmitting from the anti-theft device during the deactivating operation, a transmittal code to the drive control device, said anti-theft device and said drive control device being internally located in the motor vehicle; and switching the drive control device back on again only when the transmitted transmittal code corresponds to a comparison code in the drive control device; further comprising the step of automatically generating and transmitting from the anti-theft device the comparison code to the drive control device before performing the deactivating operation for the anti-theft device; and further comprising the step of changing the comparison code during each activating operation with respect to a previous transmittal code.