1.Turn the ignition switch ON.
2.Manually operate the control switch and measure the voltage of the blower motor.
3.Select the control switch to raise the voltage until high speed.

| Fan Speed | Voltage (V) | |
| Manual Control | Auto Control | |
| 1 | 3.8 | 3.8 ~ 4.75 |
| 2 | 5 | 5.0 ~ 5.8 |
| 3 | 6.1 | 6.1 ~ 7.0 |
| 4 | 7.3 | 7.3 ~ 8.2 |
| 5 | 8.5 | 8.5 ~ 9.4 |
| 6 | 9.7 | 9.7 ~ 10.6 |
| 7 | 10.9 | 10.9 ~ 12.5 |
| 8 | Battery (+) | |
1.Disconnect the negative (-) battery terminal.
2.Remove the glove box.(Refer to Body (Interior and Exterior) - "Glove Box")
3.Disconnect the connector (A) and then remove the power mosfet (B) after loosening the mounting screws.

4.Install in the reverse order of removal.
Blower Resistor (Manual)
Climate Control Air FiltarHyundai Tucson (NX4) 2022-2026 Owner's Manual: Multi air mode
When the multi air mode button is
pressed, air flow is directed to the facelevel
and floor-level through the air vents
along the instrument panel for the driver
and passenger. The multi-air mode LED
indicator illuminates. If the multi air
mode button is pressed when the air
volume ...
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Owner Maintenance. Owner Maintenance Schedule
WARNING
Performing maintenance on the vehicle
can be dangerous. If you lack sufficient
knowledge, experience, or proper
tools and equipment to do the work,
we recommend to have it done by an
authorized HYUNDAI dealer. Before
performing maintenance:
Park your vehicle on level ground. ...