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: Recirculating Air when Washer
Fluid is Used
Recirculation mode automatically
activates to reduce the scent of the
washer fluid entering the cabin when the
windshield washer is used.
When it is shifted to the recirculation
mode, the unpleasant scent may flow
into the vehicle.
However, in cold weather to prevent
the windshield fro ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Troubleshooting
- Troubleshooting
• Be careful not to short-circuit the wiring by the body or other wirings.
• In case of discharging problem, measure dark current at all times.(Charging System - "Dark Current Inspection")
• When checking the alternator main fuse, perform continui ...