Soft top cover opens

The STC control module receives a request from the ROOF switch to close the soft top. When receiving the request, the STC control module grounds pin 42 and the pump motor relay "pull" feeds the pump motor and it is grounded through pump motor relay "push".

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 off the return line.

Since all the hydraulic valves are inactive, the pressure will increase in the soft top cover cylinder (pull), which then opens the soft top cover.