| SONATA(YF) >2013 > G 2.4 GDI > Heating,Ventilation, Air Conditioning > Blower > Power Mosfet>Repair procedures |

Inspection

1. | Ignition "ON"

2. | Manually operate the control switch and measure the voltage of blower motor.

3. | Select the control switch to raise voltage until high speed. Specification

Fan | Motor Voltage
Manual
First speed | 3.8 ±0.5V
Second speed | 5.0 ±0.5V
Third speed | 6.2 ±0.5V
Fourth speed | 7.4 ±0.5V
Fifth speed | 8.6 ±0.5V
Sixth speed | 9.8 ±0.5V
Seventh speed | 11.0 ±0.5V
eighth speed | Battery

*AUTO COOLING: Auto speed (4.5V~B+)
*AUTO HEATING: Auto speed (4.5V~11.0V)

4. | If the measured voltage is not specification, substitute with a known-good power mosfet and check for proper operation.

5. | If the problem is corrected, replace the power mosfet.

Replacement

1. | Disconnect the negative (-) battery terminal.

2. | Remove the crash pad lower panel (A).

3. | Disconnect the power mosfet connector (A) and then remove the power mosfet (B) after loosening the mounting screws.

4. | Installation is the reverse order of removal.