Hyundai Ioniq: Air Conditioning System / In-car Sensor. Description and operation

Hyundai Ioniq (AE) 2017-2025 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.

Evaporator Temperature Sensor. Repair procedures

Inspection1.Turn the ignition switch OFF.2.Disconnect the evaporator temperature sensor connector.3.Measure the resistance between terminal "+" and "-" of the evaporator temperature sensor...

In-car Sensor. Repair procedures

Diagnosis With GDS1.The heating, ventilation and air conditioning can be quickly diagnosed failed parts with vehicle diagnostic system (GDS).※ The diagnostic system (GDS) provides the following information...

Other information:

Hyundai Ioniq (AE) 2017-2025 Service Manual: Thermostat. Troubleshooting

Troubleshooting Symptoms Possible Causes Remedy Coolant leakage• From the thermostat gasketCheck the mounting bolts• Check the torque of the mounting bolts• Retighten the bolts and check leakage again...

Hyundai Ioniq (AE) 2017-2025 Service Manual: Mode Control Actuator. Repair procedures

Inspection1.Turn the ignition switch OFF.2.Disconnect the mode control actuator connector.3.Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4.Verify that the mode control actuator operates to the vent mode when connected in reverse...