3; Inspection and Adjusfemenf 3.9 Sensor Inspection (1) Thermostat and Thermal Switch Inspection 0 Thermostat Place the thermostat in a container filled with water. Heat it while measur- ing the water temperature, and see that the thermostat is actuated at tempera- ture of following table. Valve opening temperature (X) 71 - 85 82 - 95 4TNE94.98 4TNE106(T) n - Themometer 0 Thermoswitch Place the thermoswitch in a container filled with antifreeze or oil. Heat it while measuring the fluid temperature. The switch is normal if the voltammeter shows continuity when the fluid tem- perature is 107°C - 113%. ter probes (2) Oil pressure switch Disconnect the connector from the oil pressure switch.
Keep the voltammeter probes in contact with the switch terminal J and cylinder block while operating the engine. It is abnormal if circuit is closed. 3-10