Hyundai Sonata: Air Conditioning System / Ambient Temperature Sensor Description and Operation

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.
Photo Sensor Repair procedures
Inspection 1. Turn the ignition switch ON. 2. Connect the GDS. 3. Emit intensive light toward the photo sensor using a lamp, and check the output voltage change. 4. The voltage will ri ...

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 ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Front Seat Frame Assembly Components and Components Location
Component Location 1. Front seat back frame assembly2. Front seat cushion frame assembly ...

Hyundai Sonata LF 2014-2019 Service Manual: Specifications
Specifications Transmission typeD7UF1Egnine typeGasoline 1.6 T-GDITransmission fluidQuantity1.9 ~ 2.0 LSpecified lubricantAPI Service GL-4, SAE 70W• Recommended oil - SHELL: SPIRAX S6 GHME 70W DCTF - SK: HK DCTF 70W - GS CALTEX: GS DCTF HD 70W Gear ratio1st3.9292nd2.3183rd2.0434 ...

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