Kia Optima: Air Conditioning System / Photo Sensor

Kia Optima DL3 2019-2023 Service and Repair Manual / Heating, Ventilation and Air Conditioning / Air Conditioning System / 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 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 temperature control module so that the solar radiation compensation will be performed.

Repair procedures
Inspection
1.

Turn the ignition switch ON.

2.

Connect the KDS.

3.

Emit intensive light toward the 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 ground
2. Auto light power (5V)
3. Auto light signal
4. Photo signal (RH)
5. Photo power
6. Photo signal (LH)

Replacement
  

When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components.

Use a plastic panel removal tool to remove interior trim pieces without marring the surface.

Take care not to bend or scratch the trim and panels.

Put on gloves to prevent hand injuries.

1.

Disconnect the negative (-) battery terminal.

2.

Using a remover and remove the photo sensor (A).

3.

Press the lock pin and separate the photo sensor connector (A).

4.

To install, reverse the removal procedure.

  

Make sure connectors are connected properly.

In-car Sensor
Description and operation Description The In-car air temperature sensor is built in the heater & A/C control unit. The sensor contains a thermistor which measures the temperature ...

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; res ...

Other information:

Kia Optima DL3 2019-2023 Owner's Manual: Front fog light


Fog lights are used to provide improved visibility when visibility is poor due to fog, rain or snow, etc. The fog lights will turn on when the fog light switch (1) is turned to the on position after the headlights are turned on. To turn off the fog lights, turn the switch (1) to the off posit ...

Kia Optima DL3 2019-2023 Service and Repair Manual: 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 o ...

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