Hyundai Elantra: 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 Elantra AD (2016-2020) Service Manual: Wheel Repair procedures
Hub nut tightening sequence 1. Tighten the hub nuts as follows. Tightening torque : 107.9 ~ 127.5 N.m (11.0 ~ 13.0 kgf.m, 79.6 ~ 94.0 lb-ft)     • When using an impact gun, final tightening torque should be checked using a torque wrench. Run out inspection 1 ...

Hyundai Elantra AD (2016-2020) Service Manual: Sunroof Deflector Repair procedures
Replacement 1. Open the glass fully. 2. Remove the mounting pins (C), from the frame (B), and then remove the deflector (A). 3. To install, reverse the removal procedure. ...

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