Hyundai Tucson: Air Conditioning System / Ambient Sensor Repair procedures

Hyundai Tucson (LM) 2010-2015 Service Manual / Heating, Ventilation and Air Conditioning / Air Conditioning System / Ambient Sensor Repair procedures

Inspection

1.	Ignition "OFF"

2.	Disconnect ambient temperature sensor.

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 (kx)
-30(-22)	479.22
-20(-4)	271.45
-10(14)	158.32
0 (32)	95.10
10 (50)	58.76
20 (68)	37.30
30(86)	24.27
40(104)	16.17
50(122)	11.00

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

3.	Install in the reverse order of removal.

Ambient Sensor Description and Operation

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