ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [LF, L5]

WARNING:
- When the engine is hot, it can badly burn. Turn off the engine and wait until it is cool before removing the ECT sensor.

ECT Sensor No.1

1. Remove the battery cover. Removal and Replacement

2. Disconnect the negative battery cable.

3. Drain the engine coolant. Service Precautions

4. Remove the battery and battery tray. Removal and Replacement

5. Disconnect the ECT sensor No.1 connector.

6. Remove the ECT sensor No.1 using the SST.

7. Install in the reverse order of removal.

8. Refill the engine coolant. Service Precautions

ECT Sensor No.2

1. Remove the battery cover. Removal and Replacement

2. Disconnect the negative battery cable.

3. Drain the engine coolant. Service Precautions

4. Disconnect the ECT sensor No.2 connector.

5. Remove the ECT sensor No.2 using the SST.

NOTE:
- Wipe off any oil or engine coolant if it gets on the ECT sensor No.2 installation area.

6. Install in the reverse order of removal.

7. Refill the engine coolant. Service Precautions

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Engine Temperature Sensor: Service and Repair

Use the Manual With the Right Hardware

When to See a Mechanic

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