Hyundai Sonata: Blower / Power Mosfet Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Heating, Ventilation and Air Conditioning / 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 Owners Manual: Engine Compartment Panel Fuse Replacement
1. Turn the engine off. 2. Turn all other switches OFF. 3. Remove the fuse panel cover by pressing the tap and pulling up. 4. Check the removed fuse; replace it if it is blown. To remove or insert the fuse, use the fuse puller in the engine compartment fuse panel. 5. Push in a new fuse of the same ...

Hyundai Sonata LF 2014-2019 Service Manual: ESP OFF Switch Repair procedures
Inspection 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the crash pad side switch assembly. 3. Check the continuity between the switch terminals as the ESP OFF switch is engaged. ...