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

Hyundai Elantra AD (2016-2020) Service Manual / Heating, Ventilation and Air Conditioning / 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: Electric Thermostat (ECT) Components and Components Location
Components 1. Water inlet fitting & Thermostat2. Bypass hose3. Heater pipe & hose assembly ...

Hyundai Elantra AD (2016-2020) Service Manual: Coolant Repair procedures
Refilling And Bleeding • Never remove the radiator cap when the engine is hot. Serious scalding could be caused by hot fluid under high pressure escaping from the radiator • When pouring engine coolant, be sure to shut the relay box ...