Alive Counter EMF

This telegram is routed from the electro-mechanical parking brake EMF control unit via the PT-CAN to the ZGM and from there via the K-CAN System. It serves as function monitoring of the EMF by the instrument cluster. If the parking brake control unit fails, active output of error messages is no longer possible. Monitoring means the instrument cluster is able to detect failure of the parking brake control unit and to display a corresponding Check Control message.