Kia Cadenza YG: Air Conditioning System / Photo Sensor Repair procedures

Kia Cadenza YG 2016-2021 Service Manual / Heating,Ventilation, Air Conditioning / Air Conditioning System / 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 reduce with lower intensive light.

1. Auto Light Signal
2. Auto Light GND
3. Photo Signal (RH)
4. Led power (BAT)
5. Led GND (To BCM)
6. Photo Signal
7. Photo Power (SW)
8. Auto Light Power (5V)

Replacement
1.
Disconnect the negative (-) battery terminal.
2.
With the (-) driver, remove the photo sensor (A) from the center of defrost nozzle.

3.
Install in the reverse order of removal.

    Description 1. The photo sensor is located at the center of defrost nozzle. 2. The photo sensor contains a photovoltaic (sensitive to sunlight) diode.

    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.

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    Kia Cadenza YG 2016-2021 Service Manual: Photo Sensor Description and Operation

    Description 1. The photo sensor is located at the center of defrost nozzle. 2. The photo sensor contains a photovoltaic (sensitive to sunlight) diode. The solar radiation received by its light receiving portion, generates an electromotive force in proportion to the amount of radiation received which is transferred to the automatic tem

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