Kia Cadenza YG: 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.

    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.

    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 Cadenza YG 2016-2021 Service Manual: Components and Components Location

    C

    Kia Cadenza YG 2016-2021 Service Manual: Temperature Control Actuator Repair procedures

    Inspection 1. Ignition "OFF" 2. Disconnect the connector of temperature control actuator. 3. Verify that the temperature control actuator operates to the hot position when connecting 12V to the terminal 3 and grounding terminal 7. Verify that the temperature control actuator operates to the cool position when connecting in the rev

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