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Home >> Saab >> 2003 >> 9-3 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 30 (Convertible) >> Technical Description >> Hydraulic system function, soft top closing >> Fifth bow down

Fifth bow down

WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

The STC control module sends VR-bus message "Hydraulic valve 2 OFF" and "Hydraulic valve 3 OFF" as well as "Hydraulic valve 1 ON". When hydraulic valve 1 is activated, pressure from the pump is connected to pressure to the cylinders and the pistons are pulled in and close the fifth bow. When the STC control module has sent VR -bus message "Hydraulic valve 1 OFF ", hydraulic valve 1 assumes resting position and the movement of the fifth bow stops. The STC control module then sends VR -bus message "Hydraulic valve 2 ON" so that the first bow is pressed against the windscreen frame to facilitate locking.

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