ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION [L8, LF]

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1. Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [L8, LF].)

2. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [L8, LF].)

3. Disconnect the ECT sensor connector.

4. Remove the ECT sensor. (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [L8, LF].)

5. Place the ECT sensor in the water and while increasing the water temperature, measure the resistance between ECT sensor terminals A and B.

  • If not within the specification, replace the ECT sensor. (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [L8, LF])

ECT sensor Specification

Water temperature (°C {°F}) | Resistance (kilohm)
--- | ---
20 {68} | 35.48—39.20
80 {176} | 3.65—4.02