Hyundai Elantra: Seat Electrical / Lumber Support Units
Repair procedures
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). 
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5. | Separate the retaining clips (A) from the seat frame. 
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6. | Remove the lumber support assembly (A) after disengaging mounting clip. 
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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. |
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| Check the rear lumbar support system. |
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Lumbar Support Motor
1. | Disconnect the connectors for each motor. [Lumbar Support Motor] 
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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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Other information:
DescriptionThe Seat Belt Pretensioners (BPT) are installed inside center pillar (LH & RH). When a vehicle crashes with a certain degree of frontal impact, the pretensioner seat belt helps to reduce the severity of injury to the front seat occupants by retracting the seat belt webbing. This prevents the front occupants from thrusting forward and hitting the steering wheel or the instrument pane..
Component Location1. Power door mirror2. Power door mirror switch3. Power folding mirror switch..