XJ-6L (X300) L6-4.0L (AJ16) (1997)
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Vacuum/Pressure Pump: Description and Operation
The lumbar pump, allows adjustment of seat rigidity by increasing/decreasing air pressure in the lumbar pad. The pump motor is controlled from a
switch on the seat switch pack and governed by an in-line pressure switch. A solenoid valve is used to regulate air flow to the lumbar pad.
