Hyundai Elantra: Air Conditioning System / Photo Sensor Description and Operation

Hyundai Elantra AD (2016-2020) Service Manual / Heating, Ventilation and Air Conditioning / 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: Parking Brake Lever Repair procedures
Removal 1. Disconnect the negative (-) battery cable. 2. Release the parking brake. 3. Remove the floor console assembly. (Refer to Body - "Floor console") 4. Disconnect the connector (A) of parking brake switch. 5. Remove the parking brake cable after removing the nut and cab ...

Hyundai Elantra AD (2016-2020) Service Manual: Knee Airbag (KAB) Module Repair procedures
Removal 1. Disconnect the battery negative cable and wait for at least 3 minutes before beginning work. 2. Remove the crash pad lower panel. (Refer to Body - "Crash Pad Lower Panel") 3. Remove the knee airbag module (A) after loosening the mounting nuts. 4. Disconnect the knee airb ...