Hyundai Sonata: Air Conditioning System / 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 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.
In-car Sensor Repair procedures
Diagnosis With GDS 1. The heating, ventilation and air conditioning can be quickly diagnosed failed parts with vehicle diagnostic system (GDS). ? The diagnostic system (GDS) provides the follow ...

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 ri ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: Rear seat head restraints
The rear seats are equipped with head restraints in all the seating positions for the passenger’s safety and comfort. Adjusting the height up and down To raise the head restraint: 1. Pull it up to the desired position (1). To lower the head restraint: 1. Push and hold the release button (2) on ...

Hyundai Sonata LF 2014-2019 Service Manual: Windshield Deicer Switch Repair procedures
Inspection 1. The body electrocal system can be quickly diagnosed failed parts with vehicle diagnostic system (GDS). The diagnostic system (GDS) provides the following information. (1) Self diagnosis : Checking the failure code (DTC) and display (2) Current data : Checking the system inpu ...

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