Hyundai Tucson: Air Conditioning System / Ambient Sensor Description and Operation

Description
1.
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 temperatures.
2.
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 2.0°C (35.6°F), the A/C compressor will be stopped.
The compressor will be operated by manual operating.
Photo Sensor Repair procedures
Inspection 1. Ignition "ON" 2. Using the scan tool. 3. Emit intensive light toward photo sensor using a lamp, and check the output voltage change. 4. The voltage will rise with higher ...

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 o ...

Other information:

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Hyundai Tucson (LM) 2010-2015 Service Manual: Heater & A/C Control Unit(Manual) Repair procedures
Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the console upper cover (A). 3. Using the screwdriver, remove the center facia lower cover (A). 4. Using the screwdriver, remove the center facia lower switch assembly (A). 5. Disconnect the connectors and ...

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