Hyundai Genesis: 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 terminal 1 and 2 (k?)
-30 (-22)
547.35
-20 (-4)
297.66
-10 (14)
168.61
0 (32)
99.07
10 (50)
60.05
20 (68)
37.54
30 (86)
24.13
40 (104)
15.19
50 (122)
10.74

Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the front bumper.
(Refer to Body - "Outside Rear View Mirror")
3.
Loosen the screws securing the ambient temperature sensor.
4.
Push upward the ball (B) in the lower side while lifting up the two clips (A).

5.
Disconnect the connector, then remove the ambient temperature sensor.
6.
Install in the reverse order of removal.
Ambient Temperature Sensor Description and Operation
Description The ambient temperature sensor is located inside the side mirror and detects ambient air temperature. It is a negative type thermistor; resistance will increase with lower temperatu ...

CO2 Sensor Description and Operation
Description This system maintains the density of carbon dioxide constantly in vehicle interior by measuring the amount of carbon dioxide to increase the comfortableness and the fuel consumptio ...

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