Hyundai Tucson: Heating, Ventilation and Air Conditioning / Controller

Intake Actuator

- Description The intake actuator is located at the blower unit. It regulates the intake door by a signal from the control unit. Pressing the intake selection switch will shift between recircul ...

Heater & A/C Control Unit (Manual)

- Component Connector Pin Function Pin NoConnector A (Blower)Connector B (Main) 1LowBattery (+) 2CommonISG B+ 3GroundILL+ (TAIL) 4Middle LowSensor REF (+5V) 5Middle HighMode control actua ...

Other information:

Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Remote key precautions
The remote key may not work if any of the following occur: The key is in the ignition switch. The maximum operating distance limit is exceeded (about 32 feet (10 m)). The remote key battery is weak. Other vehicles or objects may block the signals. The weather is extremely cold. ...

Hyundai Tucson (NX4) 2022-2026 Service Manual: Repair procedures
- Removal 1.Disconnect the negative (-) battery terminal. 2.Remove the heater control unit.(Refer to Heating, Ventilation And Air Conditioning - "Heater Control Unit") 3.Remove the IBU (A) after loosening mounting bolt, nut and screw. 4.Disconnect IBU connectors and then remove the IBU (A) ...