Hyundai Sonata: 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.
4.
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.
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 Sonata LF 2014-2019 Service Manual: Front Door Window Glass Repair procedures
Replacement 1. Remove the front door trim. (Refer to Front Door - "Front Door Trim") 2. After loosening the mounting screws, then remove the front door belt inside weatherstrip (A). 3. By operating the power window switch, fall down until seeing the glass mounting bolt on plug hole. ...

Hyundai Sonata LF 2014-2019 Service Manual: Water Pipe Components and Components Location
Components 1. Water pipe ...

© 2018-2021 www.hsonatalf.org