Hyundai Elantra (CN7): Blower / Power Mosfet

Hyundai Elantra (CN7) 2021-2026 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.

Repair procedures

Inspection
1.
Manually operate the control switch and measure the voltage of the blower motor.
2.
Select the control switch to raise the voltage until high speed.

Fan Speed
Motor Voltage (V) (Manual)
1
3.8
2
5
3
6.1
4
7.3
5
8.5
6
9.7
7
10.9
8
Battery +

Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Disconnect the power mosfet connector (A) and then remove the power mosfet (B) after loosening the mounting screws.

3.
To install, reverse the removal procedure.

    Repair procedures Inspection1.Connect the battery voltage and check the blower motor rotation.Replacement1.Disconnect the negative (-) battery terminal.

    Repair procedures Inspection1.Measure the resistance between the terminals.2.The measured resistance is not within specification, the blower resistor must be replaced.

    Other information:

    Hyundai Elantra (CN7) 2021-2026 Service Manual: High Mounted Stop Lamp

    Repair procedures Removal1.Disconnect the negative (-) battery terminal.2.Remove the rear package tray trim.(Refer to Body - "Rear Package Tray Trim")3.Loosen the mounting screws and remove the high mounted stop lamp (A).Installation1.Install the high mounted stop lamp.

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Troubleshooting

    TroubleshootingDiagnosis with Diagnostic tool1.In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (Diagnostic tool).The diagnostic system (Diagnostic tool) provides the following information.1)Fault Code Searching : Checking failure and code number (DTC)2)Data Analysis : Checking the system input/

    Categories

     
    Copyright В© 2026 www.helantra7.com - 0.0235