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Hyundai Azera: In-car sensor Repair procedures - Air Conditioning System - Heating,Ventilation, Air Conditioning - Hyundai Azera 2011-2025 Service ManualHyundai Azera: In-car sensor Repair procedures

Fifth generation HG (2011–2025) / Hyundai Azera 2011-2025 Service Manual / Heating,Ventilation, Air Conditioning / Air Conditioning System / In-car sensor Repair procedures

Inspection
1.
Ignition "ON"
2.
Blow warm air into the in-car sensor air inlet. Measure sensor resistance between 2 and 4 terminals.

1. Incar Motor(-)
2. Sensor GND
3. -
4. Incar Sensor (+)
5. -
6. IGN2 (Incar Motor (+))

Temperature [°C(°F)]
Resistance between terminals 2 and 4 (k?)
60(140)
7.463 ± 2.6%
50(122)
10.810 ± 2.2%
35(95)
19.59 ± 1.6%
25(77)
30.00 ± 1.2%
15(59)
47.130 ± 1.7%
0(32)
97.710 ± 2.4%
-15(5)
216.1 ± 3.2%
-30(-22)
509.6 ± 4.1%

   
In car sensor is negative type thermistor that resistance will rise with lower temperature, and reduce with higher temperature.
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the lower crash pad.
3.
Disconnect the connector of in-car sensor.
Loosen the mounting 2 screws and then remove the in-car sensor (B).

4.
installation is the reverse order of removal.
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