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Home >> Saab >> 2004 >> 9-3 Arc, 2D Convertible, Automatic >> Repair and Diagnosis >> Electrical >> Body Electrical >> Control Module >> Technical Description >> Navigation unit (635) >> Main purpose

Main purpose

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Determines the position of the car using GPS. Converts verbal pulses from the microphone to digital pulses. Both signals are converted to light pulses and sent over the O-bus.