Kia Optima: Inspection - Power Mosfet. Repair procedures - Blower - Heating,Ventilation, Air Conditioning - Kia Optima TF 2011-2026 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:

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Description Driver Airbag (DAB) is installed in the steering wheel and electrically connected to SRSCM via the clock spring. It protects the driver by deploying the airbag when frontal crash occu ...

Automatic-dimming Function
To protect your vision during nighttime driving, your mirror will automatically dim upon detecting glare from the vehicles traveling behind you. The auto-dimming function can be controlled by the ...

Keys
The key code number is stamped on the plate attached to your key set. Should you lose your keys, this number will enable an authorized Kia dealer to duplicate your keys easily. Remove this plate ...

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