Hyundai Santa Fe (TM): Air conditioning System / Ambient Temperature Sensor. Repair procedures

Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual / Heating,Ventilation And Air Conditioning / Air conditioning System / Ambient Temperature Sensor. Repair procedures

Inspection
1.
Check the resistance of the ambient temperature sensor between terminals 1 and 2 whether it changes by changing the ambient temperature.

1. Ambient Sensor (+)

 2. Sensor ground

Specification
Ambient temperature [°C (°F)]
Resistance between terminals 1 and 2 (kΩ ± 3%)
-30 (-22)
 480.41
-20 (-4)
 271.21
-10 (14)
 158.18
0 (32)
 95.1
10 (50)
 58.8
20 (68)
 37.32
30 (86)
 24.26
40 (104)
 16.13
50 (122)
 10.95

2.
If the measured resistance is not within specification, substitute with a known-good ambient temperature sensor and check for proper operation.
3.
Replace the ambient temperature sensor if it is proved that there is a problem with the sensor.
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the front bumper.
(Refer to Body - "Front Bumper Assembly")
3.
Disconnect the connector (A) and then remove the ambient temperature sensor (B).
4.
Install in the reverse order of removal.

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