Kia Cadenza VG Owner's Manual Quiz
Heating, Ventilation, and Air Conditioning

Photo Sensor Repair Procedures

In this manual: Heating, Ventilation, and Air Conditioning
General Information — 15Engine Mechanical System — 95Engine Electrical System — 54Emission Control System — 24Engine Control System/Fuel System — 115Automatic Transmission — 91Drive Shaft and Axle — 13Suspension System — 35Steering — 19Restraints — 46Brake System — 43Body (Interior and Exterior) — 51Body Electrical System — 245Heating, Ventilation, and Air Conditioning — 56
7steps
~42min
2/5difficulty
Done 0 of 7

Inspection

  1. Ignition switch ON
  2. Using a scan tool.
  3. Direct intense light onto the photo sensor using a lamp, and check the change in output voltage.
  4. The voltage will increase with more intense light and decrease with less intense light.
    1. Automatic Light Signal
    2. Auto Light GND
    3. Photo Signal (RH)
    4. LED Power (BAT)    		 5. LED GND (to BCM)
    6. Photo Signal
    7. Photo Power (SW)
    8. Auto Light Power (5 V)

Replacement

  1. Disconnect the negative (-) battery terminal.
  2. Using a flat-blade screwdriver (-), remove the photo sensor (A) from the center of the defrost nozzle.
  3. Install in the reverse order of removal.

Test yourself

A quick Kia Cadenza VG Owner's Manual quiz: every answer comes with an explanation and a link to the manual page.