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
Description
The A/C Pressure Transducer (APT) converts the pressure value of high pressure
line into voltage value after measuring it. By converted voltage va ...
In-car Sensor
Description and operation
Description
The In-car air temperature sensor is built in the heater & A/C control unit.
The sensor contains a thermistor which measures the temperature ...
Other information:
Kia Optima DL3 2019-2024 Service and Repair Manual: Battery
Repair procedures Inspection [NU 2.0 MPI] Battery Voltage and Status Check the battery voltage and status by using a battery tester. Battery Terminal 1. Move back and forth to check if the battery terminals (A) are loose or corroded. Clean any cor ...
Kia Optima DL3 2019-2024 Service and Repair Manual: Brake Line
Components and components location Components 1. HECU flare nuts. 2. HECU to body mounting nuts. 3. Master cylinder to HECU flare nut. 4. Front brake line tube flare nut. 5. Front brake line to brake hose. 6. Rear brake line tube flare nut. ...
