Hyundai Genesis: Air Conditioning System / In-car Sensor Repair procedures

Inspection
1.
Turn the ignition switch ON.
2.
Blow warm air into the in-car sensor air inlet. Measure the sensor resistance between 1 and 3 terminals.

1. Sensor Ground
2. Motor (-)

3. In-car Sensor (+)
4. Ignition 2

Specification
Temperature [°C(°F)]
Resistance between terminals 1 and 3 (k?)
-30(-22)
509.57
-20(-4)
285.61
-10(14)
164.65
0 (32)
97.71
10(50)
59.67
20(68)
37.48
30(86)
24.17
40(104)
15.98

   
An in-car sensor is a negative type thermistor. The resistance will increase with lower temperature, and decrease with higher temperature.
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad center panel.
(Refer to Body - "Crash Pad Side Garnish Assembly")
3.
Remove the in-car sensor (A).

4.
Install in the reverse order of removal.
In-car Sensor Description and Operation
Description An in-car air temperature sensor is located in the crash pad lower panel. The sensor contains a thermistor which measures the temperature of the cabin. The signal determined by the r ...

Photo Sensor Description and Operation
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