Kia Cee'd: Troubleshooting / Photo Sensor Repair procedures

Inspection
1.
Turn the ignition switch ON.
2.
Connect the GDS.
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 Signal
2. Auto Light Ground
3. Photo Signal (RH)
4. LED Power (Battery)
5. LED Ground (To BCM)
6. Photo Signal (LH)
7. Photo Power (SW)
8. Auto Light Power (5V)

Replacement
1.
Disconnect the negative (-) battery terminal.
2.
With a flat-head screwdriver, remove the photo sensor (A) from the center of the defrost nozzle after disconnecting the connector (B).

3.
Install in the reverse order of removal.
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 recei ...

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 increas ...

Other information:

Kia Cee'd Owners Manual: Malfunction indicator lamp (MIL) (check engine light)
This indicator light is part of the Engine Control System which monitors various emission control system components. If this light illuminates while driving, it indicates that a potential problem has been detected somewhere in the emission control system. This light will also illumina ...

Kia Cee'd Service Manual: Components and components location
Component Location   1. Fuel filler door ...

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