Soft top cover closes
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 grounds pin 27 and pump motor relay "push" feeds the pump motor and it is grounded through the pump motor relay "pull". The pump rotational direction is reversed. The inlet valve opens and provides the pump with oil on the suction side and, at the same time, closes the pressure side connection with the oil reservoir. The shuttle valve will be moved by the oil pressure to the side which shuts the return line.
Since the cylinders for the main movement are in their bottom positions, the pressure will increase in the soft top cover cylinder (push) which then will close the soft top.