Pacifica V6-3.8L VIN L (2005)
Power Seat Motor: Description and Operation
Recliner Motor
Power Seat Recliner And Track - Typical
The power seat option includes an electrically operated power seat back recliner mechanism. The power seat recliner switch is integral to the power seat
switch assembly, but is actuated with a separate switch knob.
The power seat recliner motor assembly is mounted in the place of a seat hinge on the outboard side of the seat. The upper hinge plate of the power seat
recliner mechanism is secured with two screws to the seat back frame and is concealed beneath the seat back trim cover and padding. The lower hinge
plate and the motor and drive unit of the power seat recliner mechanism is secured with two screws to the seat cushion frame, and is concealed by the
outboard seat cushion side shield.
The power seat recliner motor cannot be repaired. If the unit is faulty or damaged, it must be replaced.
When the recliner switch control knob is actuated, a resistance signal is sent to the appropriate Door Module via hard wired connections. The door
module then sends the request to the Memory Heated Seat Adjustable Pedal Module (MHSAPM) via the PCI data bus circuit. The MHSAPM is
responsible for the 12v battery feed and ground path to the power seat recliner adjuster motor. The adjuster motor operates to move the recliner
mechanism through its drive unit in the selected direction until the switch is released, or until the travel limit of the adjuster is reached.
The driver side power seat recliner motor used on models equipped with the memory system also has a position potentiometer integral to the motor
assembly, which electronically monitors the motor position.