Lumbar Bladder Replacement

Lumbar Bladder Replacement

Removal Procedure

The lumbar bladders are serviced as a single system. The bladder system is serviced separate from the module assembly. The bladder service part is supplied with the necessary connector fittings. The bladder hoses are labeled #3 and #4 to aid in assembly.

1. Raise the seat to the full up position.
2. Remove the seat. Refer to Seat Replacement (Seat Replacement) .
3. Remove the seat cushion cover and pad. Refer to Driver Seat Cushion Pad Replacement (Driver Seat Cushion Pad Replacement) and to Passenger Seat Cushion Pad Replacement (Passenger Seat Cushion Pad Replacement) .




4. Remove the seat back insert by pushing down to disengage at the top.
5. Remove the 2 lower fir tree fasteners attaching the seat back insert.
6. Remove the 2 fir tree fasteners which retain the bladder to the seat back.




7. Remove the lumbar bladder system from the seat back.




8. Remove the control module J strips from the seat support wires.
9. Reposition the control module to the top of the seat support wires. It is not necessary to remove the lumbar pump.




10. Cut the hoses (4) connecting the control module to the bladders 75 mm (3 in) from the control module.




11. Remove the lumbar bladder assembly.



Installation Procedure





1. Position the lumbar support bladders to the seat back inserting the tabs into the seat back.
2. Route the hoses through the pivot area and tie strap them to the seat frame under the seat back adjuster.
3. Connect the seat switch to the harness.
4. Connect power to the seat. You may need to position the seat in the vehicle.
5. Perform the procedure in the next step based upon the following information:

* Operate the upper lumbar control and connect the hose that pressurized to the bladder hose labeled #3 .
* Operate the lower lumbar control and connect the hose that pressurized to the bladder hose labeled #4.





6. Using Loctite(TM) 406, or equivalent, glue the module hoses to the fittings on the bladder hoses (4).

1. Position the hose just over the edge of the barb on the attaching fitting.
2. Apply the adhesive completely around the fitting.
3. Quickly push the hose the rest of the way onto the fitting.

7. Install the control module to the seat support wires with the J-strips.
8. Disconnect the seat electrical connector and remove the seat from the vehicle.
9. Install the seat cushion cover. Refer to Driver Seat Cushion Pad Replacement (Driver Seat Cushion Pad Replacement) or to Passenger Seat Cushion Pad Replacement (Passenger Seat Cushion Pad Replacement) .




10. Attach the cover and the bladder assembly with the 2 fir tree fasteners.
11. Tuck the cover over the corners of the hinges.
12. Install the seat back insert.
13. Install the seat. Refer toSeat Replacement (Seat Replacement) .