Remove the air cleaner housing (page 5-51).
Disconnect the 3P connector from the ECT/thermo sensor and remove the sensor.
![](https://motoinstruction.ru/img/honda/9/116676.jpg)
Suspend the ECT/thermo sensor in a pan of coolant (1:1 mixture) on an electric heating element and measure the resistance through the sensor as the coolant heats up.
Wear insulated gloves and adequate eye protection. Keep flammable materials away from the electric heating element. Do not let the thermostat or thermometer touch the pan, or you will get false readings.
Soak the thermo sensor in coolant up to its threads with at least 40 mm (1.57 in) from the bottom of the pan to bottom of the sensor.
Keep the temperature constant for 3 minutes before testing. A sudden change of temperature will result in an incorrect reading. Do not let the thermometer or thermo sensor touch the pan.
![](https://motoinstruction.ru/img/honda/9/116677.jpg)
Standard:
- 0.31 - 0.33 kΩ (80°C/68°F)
- 0.13 - 0.14 kΩ (120°C/248°F)
Replace the sensor if it is out of specification by more than 10% at any temperature listed.
Install and tighten the ECT/thermo sensor to the specified torque.
Always replace the sealing washer with a new one.
Torque: 18 N·m (1.8 kgf·m, 13 lbf·ft).
Connect the ECT/thermo sensor 3P connector.
Fill the system and bleed any air (page 6-5).
Install the air cleaner housing (page 5-51).
![](https://motoinstruction.ru/img/honda/9/116678.jpg)