Hyundai Elantra (CN7): Air Conditioning System / In-car Sensor

Hyundai Elantra (CN7) 2021-2025 Service Manual / Heating, Ventilation and Air Conditioning / Air Conditioning System / In-car Sensor

Description and operation

Description

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

Components Location

1. In-car Sensor

Repair procedures

Replacement

1.	Disconnect the negative (-) battery terminal.

2.	Remove the Heater & A/C Control Unit. (Refer to Controller - "Heater & A/C Control Unit (DATC)")

3.	To install, reverse the removal procedure.

❮Evaporator Temperature Sensor

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.

Photo Sensor❯

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:

Hyundai Elantra (CN7) 2021-2025 Service Manual: Condenser

Components and components location Components Location[General type]1. Condenser[N Line]1. Condenser Repair procedures Inspection1.Check the condenser fins for clogging and damage. If clogged, clean them with water, and blow them with compressed air.

Hyundai Elantra (CN7) 2021-2025 Service Manual: Repair procedures

Removal1.Disconnect the negative (-) battery terminal.2.Remove the trunk trim.(Refer to Body - "Trunk Rid Trim")3.Remove the trunk back panel.(Refer to Body - "Trunk back Panel")4.Loosen the mounting screw and then remove the rear view camera (A).Installation1.