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: Radiator Components and Components Location
Components 1. Radiator assembly2. Radiator upper mounting bracket3. Mounting insulator4. Radiator lower hose quick connector 5. Radiator upper hose6. Filler neck assembly ...

Hyundai Elantra AD (2016-2020) Service Manual: Front Door Trim Repair procedures
Replacement     • Put on gloves to prevent hand injuries.     • When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components. • Be careful not to scratch the door trim and ot ...

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