Kia Optima Hybrid: Air Conditioning System / Ambient Sensor Description and Operation

Description
1.
The ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor; resistance will increase with lower temperature, and decrease with higher temperatures.
2.
The sensor output will be used for discharge temperature control, temperature regulation door control, blower motor level control, mix mode control and in-car humidity control.
   
If the ambient temperature is below 0°C (32.0°F), the A/C compressor will be stopped.
The compressor will be operated by manual operating.
Photo Sensor Repair procedures

Inspection 1. Ignition "ON" 2. Using the scan tool. 3. Emit intensive light toward photo sensor using a lamp, and check the output voltage change. 4. The voltage will rise with higher intensive light and ...

Ambient Sensor Repair procedures

Inspection 1. Ignition "OFF" 2. Disconnect ambient temperature sensor. 3. Check the resistance of ambient temperature sensor between terminals 1 and 2 whether it is changed by changing of the ambient temperature. ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: A/C Pressure Transducer Description and Operation


Description A/C pressure transducer convert the pressure value of high pressure line into voltage value after measure it. By converted voltage value, engine ECU controls cooling fan by operating it high speed or low speed. Engine ECU stop the operation of compressor when the temperature of refrigerant ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Seat Heater Repair procedures


Inspection First Seat Heater 1. Check for continuity and measure the resistance between No.4 and No.6 terminals. [Cushion] No.DescriptionNo.Description1NTC4GND2-5GND3NTC6VCC [Back] Standard value (Fabric / Leather) Cushion : 3.89 ? ± 10% Back: 3.11 ? ± 10% / 4.13 ? ± 10% Set : 7.0 ? ± 10% / 8.9 ? ...

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