Kia Sportage: Air conditioning System / Evaporator Temperature Sensor Description and operation
The evaporator temperature sensor detects the evaporator core temperature and
interrupts compressor relay power in order to prevent evaporator from freezing
by excessive cooling.

Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Recover the refrigerant with a recovery/recycling/charging station.
...
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the evaporator temperature sensor connector.
3.
...
Other information:
Components
1. Engine mounting support bracket
2. Engine mounting bracket
3. Roll rod bracket
4. Transaxle mounting bracket
...
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Recover the refrigerant with a recovery/recycling/charging station.
3.
When the engine is cool, drain the engine coolant from the radiator ...