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Hyundai Equus: Evaporator Temperature Sensor Repair procedures - Air Conditioning System - Heating, Ventilation and Air Conditioning - Hyundai Equus VI 2009-2021 Service ManualHyundai Equus: 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 У+Ф and У-Ф of the evaporator temperature sensor.

Specification
Evaporator core temperature
[∞C(∞F)]
Resistance[Kx]
Voltage[V]
-20 (-4)
70.04
3.5
-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)
8.3
1.08
40 (104)
5.81
0.81
50 (122)
4.15
0.61

4.
Connect the evaporator temperature sensor connector.
5.
Run the engine and turn the A/C switch ON, then measure the voltage between the terminals of the harness connector.
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the cowl side trim.
(Refer to Body - "Cowl Side Trim")
3.
Remove the crash pad under cover (A) by pressing the locking pin.

4.
Disconnect the under lamp connector (A).

5.
Remove the stopper (B) from the glove box (A).

6.
Disconnect the air damper (A) from the glove box (B).

7.
Remove the glove box housing (A) after loosening the mounting screws and nuts.

8.
Disconnect the glove box lamp connector (A).

9.
Disconnect the evaporator temperature sensor connector (A), and then remove the evaporator temperature sensor (B) by pulling it out after rotating it 90∞ in a counterclockwise direction.

10.
Install in the reverse order of removal.
    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 An in-car air temperature sensor is located in the heater control. The sensor contains a thermistor which measures the temperature of the cabin. The signal determined by the resistan ...

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