Hyundai Sonata: Air Conditioning System / Evaporator Temperature Sensor Description and Operation

Description
The evaporator temperature sensor will detect the evaporator core temperature and interrupt compressor relay power in order to prevent evaporator from freezing by excessive cooling. The evaporator temperature sensor has the Negative Temperature Coefficient (NTC). Electrical resistivity of NTC will increase with decreasing temperature and decrease with increasing temperature.

A/C Pressure Transducer Repair procedures
Inspection 1. Measure the pressure of high pressure line by measuring voltage output between terminal "1" and "2". 2. Inspect the voltage value whether it is sufficient to be regular value or ...

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 ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Repair procedures
Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the center facia panel. (Refer to Heating, Ventilation and Air Conditioning - "Controller") 3. Disconnect the body control module connectors (A). 4. Remove the body control module (A) after loosening the mounting nut ...

Hyundai Sonata LF 2014-2019 Service Manual: Engine Cover Repair procedures
Removal and Installation 1. Remove the engine cover (A). 2. Install in the reverse order of removal. ...

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