Jeep Cherokee (XJ): Description and operation
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. 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 different
motors. They can be raised or lowered independently
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 moved in the opposite
direction, the battery feed and
ground path to the motor(s) are reversed through the
switch contacts. This causes the motor to run in the
opposite direction.
Each motor contains a self-resetting circuit breaker
to protect it from overload. Consecutive or frequent
resetting of the circuit breakers must not be allowed
to continue, or the motors may be damaged. Make
the necessary repairs.
The power seat adjuster and motors cannot be
repaired, and are serviced only as a complete unit. If
any component in this unit is faulty or damaged, the
entire power seat adjuster and motors assembly must
be replaced. An automatic resetting circuit breaker in the junction
block is used to protect the power seat system
circuit. The circuit breaker can protect the system
from a short circuit, or from an overload condition
caused by an obstructed or stuck seat adjuster.
The circuit breaker cannot be repaired and, if
faulty or damaged, it must be replaced.Power seat switch
Power seat adjuster and motors
Circuit breaker
Other materials:
Adjustments
Brake lamp switch
(1) Press and hold brake pedal in applied position.
(2) Pull switch plunger all the way out to fully
extended position.
(3) Release brake pedal. Then pull pedal lightly
rearward. Pedal will set plunger to correct position
as pedal pushes plunger into switch body. Switch wi ...