1.CHECK ENGINE COOLANT TEMPERATURE SENSOR

1. Turn ignition switch OFF.
2. Disconnect engine coolant temperature sensor harness connector.
3. Remove engine coolant temperature sensor.
4. Check resistance between engine coolant temperature sensor terminals as follows.

<Reference data>

Terminals | Condition | Resistance (kΩ)
1 and 2 | Temperature [°C (°F)] | 20 (68) | 2.1 - 2.5
50 (122) | 0.68 - 1.00
90 (194) | 0.236 - 0.260

Is the inspection result normal?
YES>>INSPECTION END
NO>>Replace engine coolant temperature sensor.