1. Park the vehicle in a safe location and turn off the engine.
2. Allow the engine to cool down before working on it.
3. Open the hood.
4. Locate the blower motor resistor. It is usually located near the HVAC housing on the passenger side of the engine compartment.
5. Disconnect the electrical connector from the blower motor resistor.
6. Unscrew the mounting screws that hold the blower motor resistor in place.
7. Remove the blower motor resistor from the vehicle.
8. Inspect the blower motor resistor for damage. Look for any signs of burning, melting, or corrosion.
9. If the blower motor resistor is damaged, replace it with a new one.
10. Reinstall the blower motor resistor in the reverse order of removal.
11. Reconnect the electrical connector to the blower motor resistor.
12. Close the hood.
13. Start the engine and test the blower motor.
If the blower motor works properly, then the problem is fixed. If the blower motor still does not work, there may be another problem with the electrical system. You should take the vehicle to a qualified mechanic for further diagnosis and repair.
