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.
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Other information:
When the LDWS is not working properly, the warning light will illuminate and
the warning message will come on for a few second. After the message disappears,
the master warning light will illuminate.
Take your vehicle to an authorized Kia dealer and have the system checked.
Conditions that ...
Component Location
Front Seat Heater
1. Seat heater unit (Assist seat
only)
2. Front seat back heater
3. Front seat cushion heater
Front Seat Heater (Air Ventilation)
1. Air ventilation seat unit
...