Kia Cadenza YG: Blower / Power Mosfet Repair procedures

Kia Cadenza YG 2016-2021 Service Manual / 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 cover (A) and then disconnect the connector (B).

3.
Remove the shower duct(A).

4.
Disconnect the power mosfet connector (A) and then remove the power mosfet (B) after loosening the mounting screws.

5.
Installation is the reverse order of removal.

    Inspection 1. Connect the battery voltage and check the blower motor rotation. 2. If the blower motor voltage is not operated well, substitute with a known-good blower motor and check for proper operation.

    Inspection 1. Measure terminal - to - terminal resistance of blower resistor. 2. If measure resistance isnot within specification, the blower resistor must be replaced.

    Other information:

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