Kia Optima: Air Conditioning System / Ambient Temperature Sensor
Description and operation
| Description |
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 temperature.
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.
|
Repair procedures
| Inspection |
| 1. |
Check the resistance of the ambient temperature sensor between terminals 1 and 2 whether it changes by changing the ambient temperature.
Specification
|
| Replacement |
| 1. |
Disconnect the negative (-) battery terminal. |
| 2. |
Remove the front bumper assembly. (Refer to Body - "Front Bumper Assembly") |
| 3. |
Separate the connector (A) and remove the ambient temperature sensor (B).
|
| 4. |
To install, reverse the removal procedure.
|
Photo Sensor
Description and operation
Description
The photo sensor is located at the center of the defrost nozzles.
The photo sensor contains a photovoltaic (sensitive to sunlight) diode. The sol ...
Auto Defogging Sensor
Description and operation
Description
The auto defogging sensor is installed on the front window glass. The sensor
judges and sends signal if moisture occurs to blow out wind for defog ...
Other information:
Kia Optima DL3 2019-2025 Service and Repair Manual: Rear Door
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Kia Optima DL3 2019-2025 Service and Repair Manual: Air Conditioning System
General safety information and caution Instructions (R-134a) When Handling Refrigerant 1. R-134a liquid refrigerant is highly volatile. A drop on the skin of your hand could result in localized frostbite. When handling the refrigerant, be sure to wear gloves. ...
