Resistance Inspection
NOTE:
- Before performing the following inspection, make sure to follow the troubleshooting flowchart. (See FOREWORD .)
- 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.
ETC SENSOR TEMPERATURE/RESISTANCE SPECIFICATIONS
| Water temperature (°C {°F}) | Resistance (kilohm) |
|---|---|
| 20 {68} | 35.48-39.20 |
| 70 (158} | 5.07-5.60 |
| 80 (176} | 3.65-4.02 |