| SONATA(YF) >2012 > G 2.4 GDI > Heating,Ventilation, Air Conditioning > Air Conditioning System > Ambient Sensor>Repair procedures |

Inspection

1. | Ignition "OFF"

2. | Disconnect ambient temperature sensor.

3. | Check the resistance of ambient temperature sensor between terminals 1 and 2 whether it is changed by changing of the ambient temperature.

1. Sensor Ground | 2. Ambient Sensor Signal

Specification

Ambient temperature [°C(°F)] | Resistance between terminals 1and 2 (kΩ)
-30(-22) | 480.41
-20(-4) | 271.21
-10(14) | 158.18
0 (32) | 95.10
10 (50) | 58.80
20 (68) | 37.32
30(86) | 23.76
40(104) | 16.13
50(122) | 10.95

4. | If the measured resistance is not specification, substitute with a known-good ambient temperature sensor and check for proper operation.

5. | If the problem is corrected, replace the ambient temperature sensor.

Replacement

1. | Disconnect the negative (-) battery terminal.

2. | Remove the front bumper. (Refer to BD group - "Front Bumper")

3. | Disconnect the connector and then remove the ambient temperature sensor (A).

4. | Installation is the reverse order of removal.