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: AVN(Audio Video Navigation) head unit Repair procedures
Removal     • Take care not to scratch the cluster fascia panel and related parts. • Eject all the disc before removing the AVN head unit to prevent damaging the DVD player's load mechanism. • Wrap the protective tape on the tool to disassemble with the scre ...

Hyundai Elantra AD (2016-2020) Service Manual: Input Speed Sensor Repair procedures
Inspection 1. Using the GDS, check the input/output speed sensor waveforms. A. Turn OFF the ignition switch. B. Connect the GDS to the Data Link Connector(DLC) on the lower crash pad. C. Ignition "ON" & Engine "ON". D. Check the input/output speed sensor waveforms at high spe ...

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