Hyundai Sonata LF: Air Conditioning System / In-car Sensor Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Heating, Ventilation and Air Conditioning / Air Conditioning System / In-car Sensor Description and Operation

Description

The sensor contains a thermistor which measures the temperature of the inside. The signal decided by the resistance value which changes in accordance with perceived inside temperature, is delivered to heater control unit and according to this signal the control unit regulates incar temperature to intended value.

When changing the resistance value by sensing the temperature caused by intake indoor air, the corresponding voltage is transmitted to the thermostat module.

Evaporator Temperature Sensor Repair procedures

Inspection 1. Turn the ignition switch OFF. 2. Disconnect the evaporator temperature sensor connector. 3. Measure the resistance between terminal "+" and "-" of the evaporator temperature sensor...

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...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Manifold Absolute Pressure Sensor (MAPS) Repair procedures

Inspection 1. Connect the GDS on the Data Link Connector (DLC). 2. Measure the output voltage of the MAPS at idle and IG ON. Specification: Refer to "Specification" Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable...

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