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

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 ...
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 Sonata LF 2014-2019 Service Manual: Repair procedures
Inspection
1.
After disconnecting the vapor hose from the PCV valve, remove the PCV valve.
2.
Reconnect the PCV valve to the vapor hose.
3.
Inspect the PCV vlave operation.
(1)
Run the engine at idle.
(2)
Put a finger on the open end of the PCV valve.
(3)
Make sure that intake ...
Hyundai Sonata LF 2014-2019 Service Manual: Dual Clutch Assembly Repair procedures
Removal
1.
Remove the dual clutch transmission from the vehicle.
(Refer to Dual Clutch System - "Repair procedures")
2.
Remove the retaining (A) and then removing the spline hub (B).
3.
Remove the snap ring (A).
4.
Remove the dual clutch assembly (A) by using the special service to ...