Photo Sensor

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 transmitted to the automatic temperature control module so that solar radiation compensation is performed.

Repair Procedures

Inspection

1. 1
   Direct intense light onto the photo sensor using a lamp, and check the change in output voltage.
2. 2
   The voltage will increase with brighter light and decrease with lower light intensity.

   

   [Dual Photo] 1. Auto Light Ground 2. Auto Light Power (+5 V) 3. Auto Light Signal (OUTPUT) 4. Photo Sensor_DRV (OUTPUT) 5. Photo Sensor Power (+5V) 6. Photo Sensor_Pass (OUTPUT)

   [Single Photo] 1. Auto Light Ground 2. Auto Light Power (+5 V) 3. Auto Light Signal (OUTPUT) 4. Photo Sensor Signal (OUTPUT) 5. Photo Sensor Power (+5V) 6. -

Replacement

1. 1
   Disconnect the negative (-) battery terminal.
2. 2
   Using a remover, remove the center speaker grille (A).

   

3. 3
   Disconnect the photo sensor connector (A) and the safety sensor connector (B).

   

4. 4
   Remove the photo sensor (A).

   

5. 5
   Install in the reverse order of removal.

   Check that the hood latch release cable is connected properly. Replace all damaged clips (or retainers or fasteners).