Front Seat Lumbar Support Replacement (AC9)

Front Seat Lumbar Support Replacement (AC9)

Removal Procedure
Caution: Refer to SIR Handling Caution in Cautions and Notices.

1. Disable the SIR system. Refer to Disabling the SIR System .

Important: The adaptive lumbar module and the pump motor are serviced as an assembly.


2. Adjust the front seat forward and up.
3. Remove the seat back trim cover. Refer to Front Seat Back Panel Replacement (Front Seat Back Panel Replacement).




4. Remove the seat cover J channels from the seat frame as needed in order to access the adaptive lumbar module and pump motor wiring and retainers.




5. Disconnect the air line connections from the adaptive lumbar module.
6. Disconnect the electrical connectors from the adaptive lumbar module.
7. Disconnect the electrical connector and single air line from the adaptive lumbar pump motor.
8. Remove the hog ring retainers and the tie straps that retain the adaptive lumbar module and pump motor to the seat back frame.
9. Remove the adaptive lumbar module and pump motor from the seat back frame.



Installation Procedure

1. Install the adaptive lumbar module and the pump motor to the seat back frame.
2. Secure the lumbar module and the pump motor to the seat back frame with tie straps and hog rings.




3. Connect the air lines to the adaptive lumbar module and the pump motor.
4. Connect the electrical connections to the adaptive lumbar module and the pump motor.




5. Install the seat back J channels to the seat back frame.
6. Operate the recliner assembly forward and back in order to ensure that there is not interference with the module wiring and the air line connections.
7. Install the seat back trim cover. Refer to Front Seat Back Panel Replacement (Front Seat Back Panel Replacement).
8. Enable the SIR System. Refer to Enabling the SIR System.