Locking Procedure

After the vehicle door has been closed, the locking procedure is started by pressing the sensitive area on the outside door handle. The outside door handle electronics module sends the request to unlock the vehicle to the Car Access System 4.

The Car Access System 4 checks whether a valid ID transmitter is in the vicinity of the outside door handle using the outside antennas.

The ID transmitter is instructed to send an authentication signal.

In turn, the identification sensor sends encrypted data via the high-frequency link to the remote control receiver.

The remote control receiver processes the data and sends it via the LIN bus to the Car Access System. The Car Access System causes the communication with the ID transmitter to be established.

If the ID transmitter is recognized as belonging to the vehicle, the Car Access System 4 issues authorization for the vehicle to be unlocked.

The junction box electronics activate the central-locking drives.