Component Function Check
- CHECK ENGINE COOLANT TEMPERATURE (ECT) SENSOR
- Turn ignition switch OFF.
- Disconnect ECT sensor harness connector.
- Remove ECT sensor. Refer to "EXPLODED VIEW ".
- Check resistance between ECT sensor terminals by heating with hot water as shown in the figure below.
ECT sensor Condition Resistance (kΩ) + - Terminal 1 2 Temperature [°C (°F)] 20 (68) 2.37 - 2.63 50 (122) 0.68 - 1.00 90 (194) 0.236 - 0.260 Is the inspection result normal?
YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".
NO: Proceed to "DIAGNOSIS PROCEDURE ".