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 Seat Assembly Repair procedures
Replacement 1. Open the cover and loosen the front seat mounting bolts. [Front] Tightening torque : 49.0 ~ 63.7 N.m (5.0 ~ 6.5 kgf.m, 36.2~ 47.0 lb-ft) [Rear] Tightening torque : 49.0 ~ 63.7 N.m (5.0 ~ 6.5 kgf.m, 36.2 ~ 47.0 lb-ft) 2. Disconnect the main connector (A), front ...

Hyundai Elantra AD (2016-2020) Service Manual: Rear Door Latch Repair procedures
Replacement 1. Remove the rear door module. (Refer to Rear Door - "Rear Door Module") 2. Remove the rear door inside handle cage (A). 3. Disconnect the rear door latch connector (A). 4. Loosen the mounting bolt and remove the rear door latch (A). 5. Remove the rear door outside ...

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