Installation Procedure

Fig 1: View Of Pump & Lumbar Control Module

Courtesy of GENERAL MOTORS CORP.

Lay the new pump and control module assembly on top of the seat spring assembly.
Apply a very small amount of air to each of the 2 lumbar bladder hoses. Perform the procedure in the next step based upon the following information:
- If the upper lumbar inflates, connect that hose to the hose labeled #3 on the new pump.
- If the lower lumbar inflates, connect that hose to the hose labeled #4 on the new pump.

Fig 2: View Of Control Module, Pump & Air Hoses

Courtesy of GENERAL MOTORS CORP.

Using Loctite™ 406, or equivalent, glue each hose to the fitting (2) in the module hose.
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.

Fig 3: View Of Torque Tube

Courtesy of GENERAL MOTORS CORP.

Insert the pump and the control module down under the seat support wires.
Attach the control module with the J strips facing outward to the underside of the seat cushion support wires.
Connect the electrical connector to the control module.
Tie strap the pump to the torque tube (4) under the front of the seat.
Install the seat cushion trim cover. Refer to Driver Seat Cushion Pad Replacement or to Passenger Seat Cushion Pad Replacement .
Install the seat. Refer to Seat Replacement .