Evaporator Temperature Sensor / Switch: Service and Repair

Evaporator Temperature Sensor:

1. Remove the drivers side under dash panel.
2. Loosen the cable straps at the sensor wiring.
3. Disconnect the 2-pin connector (B10/6x).
4. Carefully pull out the evaporator temperature sensor (B10/6).
5. Place the sensor next to an accurate temperature gauge (thermometer) and allow enough time for the sensor and the gauge to adjust to the ambient temperature.
6. With a suitable ohmmeter, check the resistance of the sensor.

Temp. Sensor Resistance Values:

7. Compare the readings with the temperature chart.

If the resistance is not within the specified range, replace the evaporator (cooling) temperature sensor.