Kia Optima: Air Conditioning System / Evaporator Temperature Sensor
Description and operation
| Description |
The evaporator temperature sensor will detect the evaporator core temperature and interrupt compressor relay power in order to prevent evaporator from freezing by excessive cooling. The evaporator temperature sensor has the Negative Temperature Coefficient (NTC). Electrical resistivity of NTC will increase with decreasing temperature and decrease with increasing temperature.
Repair procedures
| Inspection |
| 1. |
Turn the ignition switch OFF. |
| 2. |
Disconnect the evaporator temperature sensor connector. |
| 3. |
Measure the resistance between terminal "+" and "-" of the evaporator temperature sensor.
Specification
|
| Replacement |
| 1. |
Disconnect the negative (-) battery terminal. |
| 2. |
Remove the evaporator core assembly. (Refer to Heater - "Evaporator Core") |
| 3. |
Remove the evaporator temperature sensor (A) from the evaporator core.
|
| 4. |
To install, reverse the removal procedure. |
A/C Pressure Transducer
Description and operation
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In-car Sensor
Description and operation
Description
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Other information:
Kia Optima DL3 2019-2024 Service and Repair Manual: Engine Coolant Temperature Sensor (ECTS)
Specifications Specification Temperature Resistance (kΩ) °C °F 45 113 244.8 - 281.4 55 131 162.5 - 186.5 60 140 ...
Kia Optima DL3 2019-2024 Owner's Manual: Washer fluid
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