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Hyundai Equus: Photo Sensor Description and Operation - Air Conditioning System - Heating, Ventilation and Air Conditioning - Hyundai Equus VI 2009-2026 Service ManualHyundai Equus: Photo Sensor Description and Operation

Description
The photo sensor is located at the wind shield glass.
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
    Inspection 1. Turn the ignition switch ON. 2. Blow warm air into the in-car sensor air inlet. Measure the sensor resistance between 1 and 3 terminals. 1. Sensor Ground 2. Motor (-)3. Incar ...

    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 ...

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