Convertible Top Hydraulic Control Unit: Description and Operation

Solenoid Valve 1, 2, 3, Soft Top (647a, b, c)

Location







Main task
The valves control the oil flow to the hydraulic cylinders.







Type
Electrically operated solenoid valve.

Connection










The valve is grounded on pin 2 and is activated by the STC control module putting B+ on pin 1.

Every valve has three connections.

^ Oil pump output pressure
^ Oil pressure to the hydraulic cylinder
^ Oil return to the reservoir

The valves have two positions: "Active" and "Inactive".

When a valve is active the pump output is connected to the cylinder . When a valve is inactive the pump output is connected to the return line to the reservoir.

Diagram







Solenoid Valve 1, 2, 3, Soft Top (647a, b, c)

Solenoid Valve 1,2,3, Soft Top (647a,b,c):