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: Specifications
- Specification
ItemSpecification
Power source3V
Operating temperature-20°C to +60°C (-4°F to- +140°F)
RF ModulationFSK
LF ModulationASK
RF frequency433.92MHz
Battery1EA (CR2032)
An inappropriately disposed battery can be harmful to the
environment and human healt ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Repair procedures
- Inspection
Operation and Leakage Check
1.Brake Booster (A)(1)Check brake operation by applying the
brake during the test run. If the brake does not operate properly,
replace the brake booster. If brake fluid remains inside the booster
when disassembled, replace the booster and master ...