A method for teaching a portable ID transmitter with an immobilizer secret from an immobilizer system in a vehicle, as well as immobilizer system

摘要

Method for teaching a portable ID transmitter (3) with an immobilizer secret from an immobilizer system (2) in a vehicle (1), - wherein the ID transmitter (3) via suitable communication means (6, 7) can communicate wirelessly with the immobilizer system (2), - wherein the ID transmitter (3) both a microcontroller (5) as part of a keyless-entry-keyless-go system, - As well as a transponder (4) for a manual operation of the immobilizer system (2), characterized in that - The microcontroller (5) is pre-programmed with pre-learning data with already known data, wherein - Read a transponder ID from the transponder (4) of the ID transmitter (3) during pre-programming and in the microcontroller (5) of the same ID transmitter (3) is written, wherein - Subsequently, a data communication between the immobilizer system (2) and the transponder (4) takes place, wherein read out within an at least partially cryptic data communication, the transponder ID of the immobilizer system (2) and the immobilizer secret of Immobilizer system (2) is written in the transponder (4), wherein - An unambiguous assignment between the immobilizer system (2) and the transponder (4) is made by the transponder ID, wherein - In a subsequent step of the microcontroller (5) by the previously made clear assignment between transponder (4) and immobilizer system (2) is also clearly assigned, and - The immobilizer system (2) transmits the immobilizer secret in the case of a clear assignment to the microcontroller (5).