Hyundai Tucson Owners & Service Manuals

Hyundai Tucson: Air Conditioning System / Ambient Sensor

- Description The ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor; resistance will increase with lower temperature, and decrease with higher temperature.The sensor output will be used for discharge temperature control, temperature regulation door control, blower motor level control, mix mode control and in-car humidity control.

   

- If the ambient temperature is below 1.0°C (33.8°F), the A/C compressor will stop.- The compressor will operate manually.

- Inspection

1.Check the resistance of the ambient temperature sensor between terminals 1 and 2 whether it changes by changing the ambient temperature.Specification

Ambient temperature [°C (°F)]Resistance between terminals 1 and 2 (kΩ ± 3%)
-10(14)164.2
0(32)97.5
10(50)59.6
20(68)37.46

1. Ambient Sensor (+)
2. Sensor ground


- Replacement

1.Disconnect the negative (-) battery terminal.

2.Remove the front bumper assembly.(Refer to Body - "Front Bumper Assembly")

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

4.Install in the reverse order of removal.

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