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Home >> BMW >> 2009 >> 650i 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 652 (Steering And Wheel Alignment - Service Information) >> Active Steering E60, E61, E63, E64, E90, E91 >> Brief Description Of Components >> CAS: Car Access System

CAS: Car Access System

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The vehicle is authenticated by the AL control unit and the CAS control unit via the K-CAN/PT-CAN (vehicle identification numbers compared).

Moreover, the CAS control unit transmits the wake up signal for the PT-CAN.