Operation CHARM: Car repair manuals for everyone.

Lumbar/Bolster Seat

OPERATION
With seat/lock circuit breaker hot at all times, voltage is applied to the power lumbar and power bolster switch.

Each lumbar/bolster seat has two switches to change cushion shape by operating an air pump. When either switch is operated toward the inflate position, the compressor inflates the corresponding bladder; operating the switch in the other direction causes a bleeder valve to deflate the bladder.