Vacuum/Pressure Pump: Description and Operation

Power Lumbar Support Seats
The power lumbar support system consists of:
^ seat control switch
^ front seat backrest pad adjusting pump
^ front seat adjusting motor drive tube
^ system wiring and circuit protection
^ front seat backrest adjusting hose

Manual Lumbar Support Seats
The manual lumbar support system consists of:
^ front scat backrest pad adjuster handle
^ front seat backrest pad adjuster

The adjusting cable and drive unit are integral to the front seat backrest pad adjuster and are not to be repaired as individual components.