Kia Rio: Air Conditioning System / Photo Sensor (FATC only)
Description and operation
The photo sensor is located at the center of 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 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 sensor
signal
2. Auto light sensor ground
3. Passenger side photo sensor
4. LED (Power)
|
5. LED (Signal)
6. Driver side photo sensor
7. Photo sensor power
8. Auto light sensor power
|
|
1. |
Disconnect the negative (-) battery terminal.
|
2. |
With a flat-head screwdriver, remove the photo sensor (A) from the center
of defrost nozzle after disconnecting the connector (B).

|
3. |
Install in the reverse order of removal.
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Description and operation
Description
The evaporator temperature sensor will detect the evaporator core temperature
and interrupt compressor relay power in order to prevent evaporator ...
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:
• 4 Door
• 5 Door
The trunk/liftgate room lamp comes on when the trunk/liftgate is opened. The
trunk/liftgate room lamp comes on as long as the trunk/liftgate lid is open.
To prevent unnecessary charging system drain, close the trunk/liftgate lid securely
after using the trunk/liftgat ...
Components and components location
Component Location
1. Front seat back frame assembly
2. Front seat cushion frame assembly
Repair procedures
Replacement
Put on ...