Hyundai Elantra: Air Conditioning System / 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 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 in-car temperature to intended value.
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 ...

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 follow ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Engine Control Module (ECM) Repair procedures
Removal     • When replacing the ECM, the vehicle equipped withthe immobilizer must be performed procedure asbelow. [In the case of installing used ECM] 1) Perform "ECM Neutral mode" procedure with GDS. (Refer to Body Electrical System - "Immobilizer System") 2) After ...

Hyundai Elantra AD (2016-2020) Service Manual: Line Pressure Control Solenoid Valve Repair procedures
Inspection 1. Turn ignition switch OFF. 2. Remove the battery and battery tray. (Refer to Engine Electrical System - "Battery") 3. Disconnect the solenoid valve connector (A). 4. Measure resistance between sensor signal terminal and sensor ground terminal. 5. Check that the ...

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