Resistance Inspection
NOTE:
- Before performing the following inspection, make sure to follow the procedure as indicated in the troubleshooting flowchart.
- Disconnect the ECT sensor connector.
- Remove the ECT sensor. (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION ).
- Place the ECT sensor in the water and while increasing the water temperature, measure the resistance between ECT sensor terminals A and B.
- If the monitor item status/specification (reference) is not within the specification, even though the ECT sensor resistance is within the specification, perform the "CIRCUIT OPEN/SHORT INSPECTION ".
- If not within the specification, replace the ECT sensor.
Standard
WATER TEMPERATURE AND RESISTANCE SPECIFICATIONWater temperature (°C {°F}) Resistance (kilohm) 20 {68} 35.48-39.20 70(158} 5.07-5.60 80(176} 3.65-4.02