Jeep Cherokee 2000 Service Manual - Power Seat Systems
POWER SEAT SYSTEMS
TABLE OF CONTENTS
page
page
GENERAL INFORMATION
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 1
POWER SEAT SYSTEM . . . . . . . . . . . . . . . . . . . . 1
DESCRIPTION AND OPERATION
POWER SEAT SWITCH. . . . . . . . . . . . . . . . . . . . . 1
POWER SEAT ADJUSTER AND MOTORS . . . . . . 1
CIRCUIT BREAKER . . . . . . . . . . . . . . . . . . . . . . . . 2
DIAGNOSIS AND TESTING
POWER SEAT SYSTEM . . . . . . . . . . . . . . . . . . . . 2
CIRCUIT BREAKER . . . . . . . . . . . . . . . . . . . . . . . . 2
POWER SEAT ADJUSTER AND MOTORS . . . . . . 2
POWER SEAT SWITCH. . . . . . . . . . . . . . . . . . . . . 2
REMOVAL AND INSTALLATION
POWER SEAT SWITCH. . . . . . . . . . . . . . . . . . . . . 3
POWER SEAT ADJUSTER AND MOTORS . . . . . . 3
GENERAL INFORMATION
INTRODUCTION
Six-way power seats are an available factory-in-
stalled option for Left-Hand Drive (LHD) versions of
this model. Refer to 8W-63 - Power Seat in Group 8W
- Wiring Diagrams for complete circuit descriptions
and diagrams.
NOTE: This group covers both Left-Hand Drive
(LHD) and Right-Hand Drive (RHD) versions of this
model. Whenever required and feasible, the RHD
versions of affected vehicle components have been
constructed as mirror-image of the LHD versions.
While most of the illustrations used in this group
represent only the LHD version, the diagnostic and
service
procedures
outlined
can
generally
be
applied to either version. Exceptions to this rule
have been clearly identified as LHD or RHD, if a
special illustration or procedure is required.
POWER SEAT SYSTEM
The power seat system option allows the front
seating positions to be electrically adjusted for opti-
mum control and comfort using the power seat
switches located on the outboard seat cushion side
shield. The power seat system allows the seating
position to be adjusted forward, rearward, front up,
front down, rear up, or rear down. The power seat
system receives battery current through a fuse in the
Power Distribution Center and a circuit breaker in
the junction block, regardless of the ignition switch
position.
The power seat system includes the power seat
adjuster and motors unit, the power seat switch, and
the circuit breaker. Following are general descrip-
tions of the major components in the power seat sys-
tem. Refer to the owner’s manual in the vehicle glove
box for more information on the features, use and
operation of the power seat system.
DESCRIPTION AND OPERATION
POWER SEAT SWITCH
The power seat can be adjusted in six different
ways using the power seat switch. The switch is
located on the lower outboard side of the seat cushion
on the seat cushion side shield. Refer to the owner’s
manual for more information on the power seat
switch functions and the seat adjusting procedures.
The individual switches in the power seat switch
unit cannot be repaired. If one switch is damaged or
faulty, the entire power seat switch unit must be
replaced.
POWER SEAT ADJUSTER AND MOTORS
There are three reversible motors that operate the
power seat adjuster. The motors are connected to
worm-drive gearboxes that move the seat adjuster
through a combination of screw-type drive units.
The front and rear of a seat are operated by differ-
ent motors. They can be raised or lowered indepen-
dently of each other. When the center seat switch is
pushed to the Up or Down position, both the front
and rear motors operate in unison, moving the entire
seat up or down. The forward-rearward motor is
operated by pushing the center seat switch to the
Forward or Rearward position.
When a switch is actuated, a battery feed and a
ground path are applied through the switch contacts
to the motor(s). The motor(s) and drives operate to
move the seat in the selected direction until the
switch is released, or until the travel limit of the
power seat adjuster is reached. When the switch is
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POWER SEAT SYSTEMS
8R - 1