Hyundai Sonata LF: Air Conditioning System / Photo Sensor Description and Operation

Hyundai Sonata LF 2014-2019 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 following information...

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...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Description and Operation

Description Burglar Alarm State [B/A State] B/A StateDescriptionDISARM 1. In "DISARM" state, no vehicle start inhibition. So, when door, hood, or Tailgate is opened, there is no alarm sound and flashing. 2. If the battery is disconnected while the state is not "ARM/ARMWAIT/ALARM/REARM", B/A state is set to "DISARM" state...

Hyundai Sonata LF 2014-2019 Service Manual: Heater & A/C Control Unit (Manual) Components and Components Location