The 1992 Subaru Legacy Cruise Control system compares the actual car speed detected by feedback signals from speed sensor incorporated in speedometer with the speed set in the memory memorized when set switch was tuned on. A signal is then transmitted according to the difference between the two speeds. This signal is transmitted to solenoid valves of valve assembly located in the engine compartment. The movement of the actuator operates throttle valve through accelerator pedal and cable, thereby keeping the car speed constant.
The following schematic shows detail of 1992 Subaru Legacy Cruise Control System Schematic and Wiring Diagram.