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 Service Manual: Drive Belt Tensioner
- Removal and Installation
• Be careful not to damage the parts located under the vehicle
(floor under cover, fuel filter, fuel tank and canister) when raising
the vehicle using the lift.(Refer to General Information - "Lift and
Support Points")
Drive Belt Tensioner
...
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Pretensioner seat belt (for driver
and front passenger seat)
1: Retractor pretensioner,
2: Emergency fastening device (for driver’s seat only)
Your vehicle is equipped with driver’s
Pretensioner seat belts (Retractor
Pretensioner and Emergency Fastening
Device System). The pretensioner makes
sure the driver's and front passenger's
seat belt ...