Seat Lumbar Sub System Replacement

Seat Lumbar Sub System Replacement

Removal Procedure

Caution: Refer to Battery Disconnect Caution (Battery Disconnect Caution) .
1. Disconnect the battery ground cable from the battery. Refer to Battery Negative Cable Disconnection and Connection (Service and Repair) .
Caution: Refer to SIR Caution (SIR Caution) .
2. Disable the SIR system. Refer to SIR Disabling and Enabling (Service and Repair) .
3. Remove the front seat. Refer to Front Seat Replacement - Bucket (Front Seat Replacement - Bucket) .
4. Remove the front seat-back. Refer to Front Seat Back Replacement (Front Seat Back Replacement) .
5. Remove the front seat cover and pad. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement (Front Seat Back Cushion Cover and Cushion Pad Replacement) .
6. Remove the front head restraints. Refer to Front Seat Head Restraint Replacement (Front Seat Head Restraint Replacement) .
7. Remove the front head restraints guides. Refer to Front Seat Head Restraint Guide Replacement (Front Seat Head Restraint Guide Replacement) .




8. Remove the retainer (2) two places, attaching the lumbar support assembly (1) to the seat-back frame.




9. Depress the retaining tab (2) and from the inner side of the seat-back frame, rotate the lumbar support shaft (1) and withdraw from the seat-back frame.
10. Repeat this procedure for the opposite side.




11. Disconnect the spring (1), two places, attaching the lumbar support assembly (2) to the head restraint frame.




12. Disconnect the electrical connectors (1) attached to seat back harness for power & memory.




13. Remove the lumbar support assembly (1).



Installation Procedure





1. Install the lumbar support assembly (1) to the seat-back frame.




2. Connect the electrical connectors (1) attached to seat back harness for power & memory.




3. Connect the spring (1) two places, attaching the lumbar support assembly (2) to the head restraint frame.




4. Insert the lumbar support shaft (1) to the seat-back frame and rotate anti-clockwise until it locks in front of the retaining tab (2).




5. Install the lumbar support assembly (1) to seat-back frame retainers (2).
6. Install the front seat cover and pad. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement (Front Seat Back Cushion Cover and Cushion Pad Replacement) .
7. Install the front head restraints guides. Refer to Front Seat Head Restraint Guide Replacement (Front Seat Head Restraint Guide Replacement) .
8. Install the front head restraints. Refer to Front Seat Head Restraint Replacement (Front Seat Head Restraint Replacement) .
9. Install the front seat. Refer to Front Seat Replacement - Bucket (Front Seat Replacement - Bucket) .
Caution: Refer to SIR Caution (SIR Caution) .
10. Enable the SIR system. Refer to SIR Disabling and Enabling (Service and Repair) .
11. Connect the battery ground cable to the battery. Refer to Battery Negative Cable Disconnection and Connection (Service and Repair) .
12. Test the seat for correct mechanical and electrical operation.