Hyundai Creta: Air Conditioning System / Photo Sensor

Hyundai Creta GS 2014-2021 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.

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.	With a flat-head screwdriver, remove the photo sensor (A) from the center of the defrost nozzle after disconnecting the connector (B).

3.	Install in the reverse order of removal.

In-car Sensor

Description and operation Description The In-car air temperature sensor is built in the heater & A/C control unit. The sensor contains a thermistor which measures the temperat ...

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; ...

Other information:

Hyundai Creta GS 2014-2021 Service Manual: Repair procedures
Teaching Procedures 1. Key Teaching Procedure Key teaching must be done after replacing a defective PCM (ECM) or when providing additional keys to the vehicle owner. The procedure starts with an PCM (ECM) request for vehicle specific ...

Hyundai Creta GS 2014-2021 Service Manual: Description and operation
Description • Engine coolant is used for circulating heat in order to heat and cool the transaxle oil. • Prevents over heating of the transaxle oil while the vehicle is moving. Coolant Flow ...