Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
COOLANT TEMPERATURE SENSOR RESISTANCE TEST1. Remove the engine coolant temperature sensor.
CAUTION: Be careful not to touch the connector (resin section) with the tool when removing and installing.
2. With temperature sensing portion of engine coolant temperature sensor immersed in hot water, check resistance.
Standard value:
2.1 - 2.7 kohms at 20°C (68°F)
0.26 - 0.36 kohms at 80°C (176°F)
3. If the resistance deviates from the standard value greatly, replace the sensor.
4. Apply sealant to threaded portion.
Specified sealant: 3M NUT Locking Part No. 4171 or equivalent
5. Install the engine coolant temperature sensor and tighten it to the specified torque.
Tightening torque: 29 Nm (22 ft.lbs.)