Engine Coolant Temperature (ECT) Sensor Inspection: Notes
- Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.5] .)
- Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT .)
- Remove the battery and battery tray. (See BATTERY REMOVAL/INSTALLATION [MZR 2.5] .)
- Disconnect the ECT sensor connector.
- Remove the ECT sensor. (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION .)
- Place the ECT sensor in water with a thermometer, and heat the water gradually.
- Measure the resistance between ECT sensor terminals A and B.
- If not as specified, replace the ECT sensor. (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION .)