Kia Cadenza YG: 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.

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Schematic Diagrams

    Circuit Diagram SVM System Input/Output 1. Camera input ItemSpecificationLens angle of view190 degreesAngle of viewHorizontal186 degreesVertical135 degreesFunctionProvides the original image of the wide angle image (no additional function)Application locationSame camera applied to the front, rear, left and right 2.

    Kia Cadenza YG 2016-2021 Service Manual: Power Mosfet Repair procedures

    Inspection 1. Ignition "ON" 2. Manually operate the control switch and measure the voltage of blower motor. 3. Select the control switch to raise voltage until high speed. Specification FanMotor VoltageManualFirst speed3.8 ±0.5VSecond speed5.

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