Hyundai Sonata: Blower / Power Mosfet Description and Operation

Description
It is installed to the DATC and adjusts the fan rpm by precisely controlling the voltage applied to the blower motor.
Blower Motor Repair procedures
Inspection 1. Connect the battery voltage and check the blower motor rotation. 2. If the blower motor does not operate well, substitute with a known-good blower motor and check for proper oper ...

Power Mosfet Repair procedures
Inspection 1. Turn the ignition switch ON. 2. Manually operate the control switch and measure the voltage of the blower motor. 3. Select the control switch to raise the voltage until high ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Repair procedures
Compession Pressure Inspection     If the there is lack of power, excessive oil consumption or poor fuel economy, measure the compression pressure. 1. Make sure the oil in the crankcase is of the correct viscosity and at the correct level and that the battery is correctly ...

Hyundai Sonata LF 2014-2019 Owners Manual: Adaptive Front Lighting System (AFLS) Warning Light
This warning light illuminates: Once you set the Engine Start/ Stop Button to the ON position. - It illuminates for approximately 3 seconds and then goes off. When there is a malfunction with the AFLS. If there is a malfunction with the AFLS: 1. Drive carefully to a safe location and stop the ...

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