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Home >> Saab >> 2001 >> 9-3 Base, 4D Hatchback, Automatic >> Repair and Diagnosis (Single Page) >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Convertible >> Technical Description >> Hydraulic system function, soft top opening >> Fifth bow down

Fifth bow down

The STC control module sends VR-bus message "Hydraulic valve 3 OFF" and thereafter "Hydraulic valve 1 ON" and when hydraulic valve 1 is activated, pressure from the pump is connected to pressure to the cylinders and the pistons are pulled in and lower the fifth bow.