Evaporator Temperature Sensor / Switch: Testing and Inspection

INSPECTION

1. Ignition "ON".
2. Turn on the A/C switch.
3. Disconnect evaporator temperature sensor.




4. Using the multi-tester, Measure resistance between terminal "1" and "2" of evaporator temperature sensor.
5. If the measured resistance is not specification, substitute with a known-good evaporator temperature sensor and check for proper operation.
6. If the problem is corrected, replace the evaporator temperature sensor.