An actuator for operating a vehicle door includes a spring that is adapted to frictionally connect a wheel gear and an output gear upon actuation of an electric motor. A temperature detection unit detects a temperature of each type of the semiconductor light emitting elements during light emission. The impact blade is rigid and interchangeable. Fiber optic cables can be plugged into a ferrule attached to the PLC. The solenoid is also adapted to close the injector valve, thereby blocking the liquefied gas within the chamber from entering the outflow line.