Kia Forte BD Quiz
Heating, Ventilation, and Air Conditioning

Photo Sensor

In this manual: Heating, Ventilation, and Air Conditioning
General Information — 8Maintenance — 32Engine Mechanical System — 47Engine Electrical System — 17Emission Control System — 10Engine Control System/Fuel System — 32Clutch System — 11Manual Transmission — 11DCT (Dual Clutch Transmission) System — 16Drive Shaft and Axle — 8Suspension System — 26Steering — 9Restraints — 11Brake System — 27Body (Interior and Exterior) — 119Body Electrical System — 98Heating, Ventilation, and Air Conditioning — 27
8steps
~48min
2/5difficulty
Done 0 of 8

Description and Operation

Description

The photo sensor is located in the center of the defroster nozzles.

The photo sensor contains a photovoltaic (sunlight-sensitive) diode. The solar radiation received by its light-receiving part generates an electromotive force proportional to the amount of radiation received, which is sent to the automatic temperature control module to compensate for solar radiation.

Repair Procedures

Inspection

  1. Turn the ignition on.

  2. Connect the GDS.

  3. Direct intense light onto the photo sensor using a lamp, and check the change in output voltage.

  4. The voltage will increase with brighter light and decrease with lower light intensity.

    1. Auto Light Signal
    2. Auto Light Ground
    3. Photo Signal (Right)
    4. LED Power (B+)    		 5. LED Ground (to BCM)
    6. Photo Signal (Left)
    7. Photo Force
    8. Auto Light Power (5 V)

Replacement

  1. Disconnect the negative (-) battery terminal.

  2. Using a scraper or puller, remove the photo sensor (A).

  3. Disconnect the photo sensor connector (A).

  4. To install, reverse the removal procedure.

Test yourself

A quick Kia Forte BD quiz: every answer comes with an explanation and a link to the manual page.