Hyundai Elantra: Air Conditioning System / 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.

Specification
Evaporator core temperature
[°C (°F)]
Resistance [K?]
Voltage [V]
-10 (14)
43.35
2.96
0 (32)
27.62
2.4
10 (50)
18.07
1.88
20 (68)
12.11
1.44
30 (86)
8.30
1.08
40 (104)
5.81
0.81

1. Sensor Ground
2. Evaporator sensor (+)

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.
(1) Self diagnosis : Checking the failure code (DTC) and display.
(2) Current data : Checking the system input/output data state.
(3) Actuation test : Checking the system operation condition.
(4) Additional function : Other controlling such as he system option and zero point adjustment.
2.
Select the 'Car model' and the system to be checked in order to check the vehicle with the tester.
3.
Select the 'Current data' menu to search the current state of the input / output data.
The input/output data for the sensors corresponding to the Evaporator Temperature Sensor can be checked.

Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Disconnect the evaporator temperature sensor connector (A).

3.
Remove the evaporator temperature sensor (A) by pulling it out after rotating it 90° in a counterclockwise direction.

4.
To intall, reverse the removal procedure.
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. ...

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 ...

Other information:

Hyundai Elantra AD (2016-2020) Owners Manual: Limitations of the System
The driver must be cautious in the below situations because the system may not detect other vehicles or objects in certain circumstances: The vehicle is driven in inclement weather such as heavy rain or snow. The sensor is polluted with rain, snow, mud, etc. The rear bumper where the senso ...

Hyundai Elantra AD (2016-2020) Service Manual: Rear Door Latch Repair procedures
Replacement 1. Remove the rear door module. (Refer to Rear Door - "Rear Door Module") 2. Remove the rear door inside handle cage (A). 3. Disconnect the rear door latch connector (A). 4. Loosen the mounting bolt and remove the rear door latch (A). 5. Remove the rear door outside ...

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