Hyundai Genesis: Air Conditioning System / Evaporator Temperature Sensor Repair procedures

Hyundai Genesis (DH) 2013-2016 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.

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)	8.3	1.08
40 (104)	5.81	0.81

1. Sensor Ground

2. Evaporator sensor (+)

Replacement

1.	Disconnect the negative (-) battery terminal.

2.	Remove the cowl side trim. (Refer to Body - "Cowl Side Trim")

3.	Remove the glove box upper cover. (Refer to Body - "Crash Pad Main Lower Assembly")

4.	Remove the evaporator temperature sensor (A), by pulling it after rotating 90° Counterclockwise.

5.	Disconnect the connector, then remove the ambient temperature sensor.

6.	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 due to excessive cool ...

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