Hyundai Elantra: Air Conditioning System / Photo Sensor Repair procedures

Hyundai Elantra AD (2016-2020) Service Manual / Heating, Ventilation and Air Conditioning / Air Conditioning System / 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.

The voltage will rise with higher intensive light and reduce with lower intensive light.

1. Auto light signal
2. Auto light ground
3. Photo signal (RH)
4. LED power (B+)

5. LED ground (To BCM)
6. Photo signal (LH)
7. Photo power
8. Auto light power (5V)

Replacement

1.	Disconnect the negative (-) battery terminal.

2.	Using a screwdriver or remover, remove the photo sensor (A).

3.	Install in the reverse order of removal.

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 r ...

Ambient Temperature Sensor Description and Operation

Description The ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor; resistance will increase with lower te ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Sun Roof
Components and Components Location Component Location 1. Sunroof2. Sunroof switch3. Sunroof motor & controller Schematic Diagrams Circuit Diagram Sunroof Switch Repair procedures Inspection 1. Disconnect the negative (-) battery terminal. 2. Open the sunglass case cover from th ...

Hyundai Elantra AD (2016-2020) Service Manual: Description and Operation
Description The charging system included a battery, an alternator with a built-in regulator, and the charging indicator light and wire. The Alternator has eight built-in diodes, each rectifying AC current to DC current. Therefore, DC current appears at alternator "B" terminal. In addition, the ...