Hyundai Venue (QX): Air Conditioning System / Evaporator Temperature Sensor. Repair procedures

Hyundai Venue (QX) (2020-2025) Service Manual / Heating, Ventilation and Air Conditioning / 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.

Hyundai Venue. Evaporator Temperature Sensor. Repair procedures

Specification
Evaporator core temperature
[°C (°F)]
Resistance [KΩ]
Voltage [V]
-10 (14)
 17.93
 3.21
0 (32)
 11.36
 2.66
10 (50)
 7.4
 2.13
20 (68)
 4.94
 1.66
30 (86)
 3.37
 1.26
40 (104)
 2.35
 0.95

Hyundai Venue. Evaporator Temperature Sensor. Repair procedures

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.

Hyundai Venue. Evaporator Temperature Sensor. Repair procedures
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the heater unit.
(Refer to Heater - "Heater Unit")
3.
Separate the evaporator temperature sensor connector (A), loosen the mounting screws and remove the evaporator core cover (B).

Hyundai Venue. Evaporator Temperature Sensor. Repair procedures
4.
Pull out the evaporator core (A) from the heater unit.

Hyundai Venue. Evaporator Temperature Sensor. Repair procedures
5.
Remove the evaporator temperature sensor (A).

Hyundai Venue. Evaporator Temperature Sensor. Repair procedures
6.
To install, reverse the removal procedure.

    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.

    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.

    Other information:

    Hyundai Venue (QX) (2020-2025) Service Manual: Mode Control Actuator. Repair procedures

    Inspection 1. Turn the ignition switch OFF. 2. Disconnect the mode control actuator connector. 3. Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4.

    Hyundai Venue (QX) (2020-2025) Service Manual: Components and components location

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