Kia Optima: Inspection - Power Mosfet. Repair procedures - Blower - Heating,Ventilation, Air Conditioning - Kia Optima TF 2011-2019 Service ManualKia Optima: 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

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.

Power Mosfet. Repair procedures
...

Replacement
1. 1. Disconnect the negative (-) battery terminal. 2. Remove the main crash pad lower cover (A). 3. Disconnect the power mosfet connector ...

See also:

Battery. Description and Operation
Description 1. The maintenance-free battery is, as the name implies, totally maintenance free and has no removable battery cell caps. 2. Water never nee ...

Components and Components Location
Component Location 1. Driver power window main switch 2. Passenger power window switch 3. Front window motor 4. Rear window motor 5. Rear window switch ...

Precautions
✽ NOTICE The transmitter (or smart key) will not work if any of following occurs: The ignition key is in the ignition switch. You exceed the operating distance limit (about 30 m [90 feet ...

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