Kia Optima: Air Conditioning System / Photo Sensor
Description and operation
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
| 1. |
Turn the ignition switch ON.
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| 3. |
Emit intensive light toward the photo sensor using a lamp, and check
the output voltage change.
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| 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
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4. Photo signal (RH)
5. Photo power
6. Photo signal (LH)
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| • |
When removing with a flat-tip screwdriver or remover, wrap protective
tape around the tools to prevent damage to components.
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| • |
Use a plastic panel removal tool to remove interior trim pieces
without marring the surface.
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| • |
Take care not to bend or scratch the trim and panels.
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| • |
Put on gloves to prevent hand injuries.
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| 1. |
Disconnect the negative (-) battery terminal.
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| 2. |
Using a remover and remove the photo sensor (A).
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| 3. |
Press the lock pin and separate the photo sensor connector (A).
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| 4. |
To install, reverse the removal procedure.
| •
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Make sure connectors are connected properly.
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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 ...
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:
Repair procedures
Inspection
[On vehicle inspection]
1.
Accelerate the engine to about 3,000 rpm 3 times or more.
2.
Remove the spark plug.
3.
Check the spark plug visually.
If the electrode is dry, the spark ...
Ventilation
1.Set the mode to the position.
2.Set the air intake control to the outside (fresh) air position.
3.Set the temperature control to the desired position.
4.Set the fan speed control to the desired speed.
Heating
1.Set the mode to the position.
2.Set the air intake control to the ...
In-car Sensor
Ambient Temperature Sensor