Hyundai Tucson: Auto defogging actuator
Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Heating, Ventilation and Air Conditioning (HVAC) / Heater / Auto defogging actuator
Components Location

- Auto defogging actuator
Inspection
- Turn the ignition switch OFF.
- Disconnect the auto defogging connector.
- Verify that the auto defogging actuator operates to the open position when connecting 12V to terminal 3 and grounding terminal 6
Verify that the auto defogging actuator operates to the close position when connected in reverse.

- -
- -
- DEF (Close)
- DEF (Open)
- Sensor (+ 5V)
- Feedback signal
- Sensoer ground
- Connect the auto defogging actuator connector.
- Turn the ignition switch ON.
- Check the voltage between terminals 5 and 4.

* It will feedback the current position of the actuator to controls.
- If the measured voltage is not within specification, check the operation by replacing the existing auto defogging actuator with a new genuine part. After that, determine whether replacement of the auto defogging actuator is required or not.
- Replace the auto defogging actuator if it is proved that there is a problem with it.
Replacement
- Disconnect the negative (-) battery terminal.
- Remove the main crash pad assembly.
(Refer to Body (Interior and Exterior) - "Main Crash Pad Assembly")
- Disconenct the connector (A) and loosen the mounting screws and remove the auto defogging actuator (B).

- Install in the reverse order of removal.
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Blower unit assembly
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Intake duct case LH
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Intake door(l)
Intake door(2)
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Climate control actuator
PWM blower module
B
Blower - Replacement
Disconnect the negative (-) battery terminal.
Recover the refrigerant with a recovery/recycling/charging station.
(Refer to Air conditioning System - "Repari procedures")
When the engine is cool, drain the engine coolant from the r
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General Safety Information and Caution
Be careful when driving the vehicle using the smart cruise control
system as follows.
(1) On curves or inclines/declines
The smart cruise control system may have limits to detect distance to
the vehicle ahead due to
road and traffic
Multi Air Mode
Multi Air Mode (if equipped)
When the Multi-Air mode button is
pressed, air flow is directed to the
face level and floor level and through
perforated sections along the instrument
panel for the driver and passenger. The
multi-air mode L
Information
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Owner's Manual
- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual