Hyundai Elantra: Air Conditioning System / In-car Sensor
Description and operation
The In-car air temperature sensor is built in the heater & A/C control unit.
The sensor contains a thermistor which measures the temperature of the inside. The signal decided by the resistance value which changes in accordance with perceived inside temperature, is delivered to heater control unit and according to this signal the control unit regulates in-car temperature to intended value.
Components and components location

Repair procedures
1. | Disconnect the negative (-) battery terminal. |
2. | Remove the Heater & A/C Control Unit. (Refer to Controller - "Heater & A/C Control Unit (DATC)") 
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3. | To install, reverse the removal procedure. |
Description and operation
DescriptionThe evaporator temperature sensor will detect the evaporator core temperature and interrupt compressor relay power in order to prevent evaporator from freezing by excessive cooling...
Description and operation
Description 1.The photo sensor is located at the center of the defrost nozzles.2.The photo sensor contains a photovoltaic (sensitive to sunlight) diode...
Other information:
Repair procedures
Removal1.Disconnect the negative (-) battery terminal.2.Using a remover and remove the overhead console (A).3.Disconnect the overhead console connectors (A).Installation1.Connect the overhead console connectors and install the overhead console...
Components and components location
Components1. BSD Indicator2. Side repeater lamp
Repair procedures
Inspection1.Disconnect the negative (-) battery terminal.2.Remove the front door trim.(Refer to Body - "Front door trim")3.Disconnect the power door mirror connector from the harness4...