Fifth bow opens

The STC control module receives information from the switch ROOF of a request to open the soft top. When the request is received, the STC control module grounds pin 27, and the pump motor relay "push" feeds the pump motor and it is grounded through pump relay "pull". The inlet valve opens and provides the pump with oil on the left side and, at the same time, closes the pressure side connection to the oil reservoir. The shuttle valve will be moved by the oil pressure to the side that shuts off the oil return.

The STC control module sends VR-bus message "Hydraulic valve 3 ON" and when hydraulic valve 3 is activated, pressure from the pump is connected to the cylinders and the pistons are pressed out and open the fifth bow.