ECT Sensor Resistance Inspection
- Disconnect the negative battery cable.
- Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS [L5] .)
- Remove the battery. (See BATTERY REMOVAL/INSTALLATION [L5] .)
- Remove the ECT sensor. (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [L5] .)
- Place the ECT sensor in water with a thermometer, and heat the water gradually.
- Measure the resistance between the ECT sensor terminals A and B using an ohmmeter.
- If not as specified, replace the ECT sensor. (See
ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [L5] .)SPECIFICATION
ECT (°C {°F}) Resistance (kilohms) 20 {68} 35.48-39.20 80 {176} 3.65-4 02
- If not as specified, replace the ECT sensor. (See
ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [L5] .)