Characteristics of the coolant temperature sensor
Note: Characteristic of the coolant temperature sensor for engines with a lean-burn combustion system) has somewhat tighter tolerance limits.
Checking the coolant temperature sensor
1. To remove the coolant temperature sensor, drain the coolant.
2. Remove the sensor, disconnect the connector.
3. Using an ohmmeter, measure the resistance of the coolant temperature sensor.
4. According to the graph, find the value of the resistance of the sensor (temperature dependent) and compare with the measurement results.
If the resistance value is outside the tolerance shown in the graph, replace the sensor.
5 Reinstall the sensor.
6. Fill with coolant (Removed coolant temperature sensor).