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Home >> BMW >> 2004 >> 645Ci 2D Convertible, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instruments - Si Techniques >> Head-Up Display E60, E61, E63, E64 >> Brief Description Of Components >> CAS: Car Access System

CAS: Car Access System

The CAS provides input signals relating to terminal status (e.g. terminal 15 ON).

The head-up display is operational when terminal 15 is switched ON.