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Home >> Toyota >> 2003 >> Echo L4-1.5L (1NZ-FE) >> Repair and Diagnosis >> Heating and Air Conditioning >> Evaporator Temperature Sensor / Switch >> Testing and Inspection
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Evaporator Temperature Sensor / Switch: Testing and Inspection

INSPECTION

1. REMOVE FRONT PASSENGER AIRBAG ASSEMBLY




2. REMOVE THERMISTOR
a. Disconnect the connector.
b. Disconnect the wire harness clamps.
c. Using a screwdriver, pull out the thermistor.




d. Release the 2 claws and remove the thermistor from bracket plate.

3. INSPECT THERMISTOR RESISTANCE




a. Place the thermistor in cold water and while changing the temperature of the water, measure resistance at the connector and at the same time, measure temperature of the water with a thermometer.




b. Compare the 2 readings on the chart.
If resistance value is not as specified, replace the thermistor.

4. INSTALL THERMISTOR
a. Install the thermistor to A/C unit.
b. Connect the wire harness clamps.
c. Connect the connector.

5. INSTALL FRONT PASSENGER AIRBAG

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