ENGINE COMPONENT AND LOCATION 111 Thermostat This is a piston-type, full-flow thermostat with piston, bulb, seal and housing in a single assembly. Coolant flows continuously, either back to the pump, or to the radiator and back to the pump. It has lower pressure drop compared to other types. The thermostat is mounted on the front of the cylinder head. Engine Cooling Fan T2019149 The cooling fan runs via a viscous or air-operated drive through which fan speed is electronically controlled by the EECU. With precise EECU control, fan speed is continuously adjusted in response to several interrelated influences. This makes for efficient cooling with low fuel consumption. 1.
Solenoid Valve and Speed Sensor 2. Connector (to EECU)