Power Lumbar Seats

OPERATION

Circuit Breaker 12 is hot at all times and applies voltage to the Seat Control Switches. Each Seat Control Switch contains a Lumbar Seat Switch.

The Lumbar Seat Switches control power to the Power Lumbar Compressors and air pressure release from the Lumbar Air Bladders.

Moving the switch in one direction powers the seat compressor motor, and the Lumbar Air Bladder inflates to change the seat back cushion shape. Releasing the switch stops the motor and closes an air bleeder valve in the switch. The Lumbar Air Bladder remains inflated.

Moving the switch in the other direction opens the air bleeder valve, and the Lumbar Air Bladder deflates. The compressor does not run.