Hyundai Elantra: 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 Elantra AD (2016-2020) Service Manual: Front Door Belt Inside Weatherstrip Repair procedures
Replacement 1. Remove the front door trim. (Refer to Front Door - "Front Door Trim") 2. Remove the front door belt inside weatherstrip (A). 3. To intall, reverse the removal procedure.     • When installing, install it by first contacting the inside part (basis p ...

Hyundai Elantra AD (2016-2020) Owners Manual: Aluminum wheel maintenance
The aluminum wheels are coated with a clear protective finish. NOTICE Do not use abrasive cleaner, polishing compound, solvent, or wire brushes on aluminum wheels. Clean the wheel when it has cooled. Use only a mild soap or neutral detergent, and rinse thoroughly with water. Also, cle ...

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