Coolant Temperature Sensor/Switch (For Computer): Service and Repair

Inspection

1. Turn the ignition switch OFF.
2. Disconnect the ECTS connector.
3. Remove the ECTS.
4. After immersing the thermistor of the sensor into engine coolant, measure resistance between the ECTS terminals 1 and 2.
5. Check that the resistance is within the specification.

Specification:Refer to Specification Section.

Removal

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Remove the cooling fan.
3. Disconnect the engine coolant temperature sensor connector and remove the the engine coolant temperature sensor (A).





CAUTION:
- Note that engine coolant may be flowed out from the water temperature control assembly when removing the sensor.

4. Supplement the engine coolant .

Installation

CAUTION:
- Install the component with the specified torques.
- Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.

CAUTION:
- Apply the engine coolant to the O-ring.

CAUTION:
- Insert the sensor in the installation hole and be careful not to damage the sensor when installing.

1. Installation is reverse of removal.

Engine coolant temperature sensor installation:
19.6 - 39.2 N.m (2.0 - 4.0 kgf.m, 14.5 - 28.9 lb-ft)