Hyundai Elantra (CN7): Seat Electrical / Lumber Support Units

Hyundai Elantra (CN7) 2021-2025 Service Manual / Body Electrical System / Seat Electrical / Lumber Support Units

Repair procedures

Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the front seat assembly.
(Refer to Body - "Front Seat Assembly")
3.
Remove the seat back.
(Refer to Body - "Front Seat Back Cover")
4.
Disconnect the lumber support motor connector (A).

5.
Separate the retaining clips (A) from the seat frame.

6.
Remove the lumber support assembly (A) after disengaging mounting clip.

Installation
1.
Install the lumbar support assembly.
2.
Install the seat back cover.
3.
Install the front seat assembly.
   
•
Make sure that the connectors are plugged in properly.
•
Check the rear lumbar support system.
Inspection
Lumbar Support Motor
1.
Disconnect the connectors for each motor.
[Lumbar Support Motor]

2.
With the battery connected directly to the motor terminals, check if the motors run smoothly.
3.
Reverse the connections and check that the motor turns in reverse.
4.
If there is an abnormality, replace the motors.

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