JEEP CHEROKEE 1995 Service Repair Manual

DIAGNOSIS
Before any testing is attempted the battery should
be fully charged and all connections and pins cleaned
and tightened to ensure proper continuity and
grounds.
With the dome lamp on, apply switch in direction
of the failure. If the dome lamp dims, the seat may
be jamming. Check for binding or obstructions. If the
dome lamp does not dim, then proceed with the fol-
lowing electrical tests.
POWER SEAT ADJUSTER/MOTORS
Operate the power seat switch to move all three
seat motors. The seat should move in all directions.
If not OK, proceed as follows. If one or more motors
operate, see diagnosis for Power Seat Switch.
(1) Check circuit breaker 16 in the fuseblock mod-
ule. If OK, go to next step. If not OK, replace circuit
breaker.
(2) Remove switch mounting screws and check for
battery voltage at red wire at switch connector. If
OK, go to next step. If not OK, repair wiring to cir-
cuit breaker.(3) Check for continuity between black wire at
switch connector and a good ground. There should be
continuity. If OK, go to next step. If not OK, repair
wiring to ground.
(4) See diagnosis for Power Seat Switch. If switch
continuity checks OK, replace faulty motor/adjuster
assembly. If switch continuity is not OK, replace
faulty switch.
POWER SEAT SWITCH
To check the power seat switch, remove the switch
from its mounting position. Use an ohmmeter and
see the Power Seat Switch Continuity chart. Deter-
mine if switch continuity is correct. If OK, see Power
Seat Adjuster/Motors diagnosis. If not OK, replace
faulty switch assembly.
POWER SEAT SWITCH CONTINUITY
8R - 2 POWER SEATSJ

SERVICE PROCEDURES
POWER SEAT SWITCH REMOVE/INSTALL
(1) Disconnect battery negative cable.
(2) Reach under seat and release switch and bezel
retainer snap clips (Fig. 2), while pulling gently on
switch and bezel assembly.
(3) Pull switch, bezel, and retainer out from seat
frame far enough to access multiple terminal block.
Carefully release locking tabs and separate switch
retainer and switch bezel from switch body.
(4) Carefully release locking tabs securing multiple
terminal block to switch and remove switch.
(5) Reverse removal procedures to install.
POWER SEAT ADJUSTER/MOTORS REMOVE/
INSTALL
(1) Disconnect battery negative cable.
(2) Remove 4 bolts securing seat adjuster to floor
(Fig. 3).
(3) Disconnect power seat feed wiring connector.
(4) Remove 4 bolts securing power seat adjuster/
motor assembly to seat cushion frame.
(5) Disconnect wiring from power seat switch to
power seat motors and remove power seat adjuster/
motor assembly.
(6) Reverse removal procedures to install. Tighten
seat mounting hardware to 34 Nzm (25 ft. lbs.)
torque.
Fig. 2 Power Seat Switch Remove/InstallFig. 3 Power Seat Adjuster Remove/Install
JPOWER SEATS 8R - 3

POWER WINDOWS
CONTENTS
page page
DIAGNOSIS............................. 1
GENERAL INFORMATION.................. 1SERVICE PROCEDURES................... 7
GENERAL INFORMATION
Power door windows are optional equipment on XJ
(Cherokee) models. The power windows operate only
with the ignition switch in the ON position. This
group covers diagnosis and service of the electrical
components peculiar to the power window system.
For service of mechanical components such as the
regulator, lift plate or window tracks refer to Group
23 - Body Components.
Following are general descriptions of the major
components in the power window system. Refer to
Group 8W - Wiring Diagrams for complete circuit de-
scriptions and diagrams.
POWER WINDOW SWITCH
Both front and rear door windows can be raised or
lowered electrically by operating the four two-way
switches on the driver's door panel. A single two-way
switch on each passenger's door panel operates only
the window on that passenger's door. The switches
cannot be repaired. If faulty, they must be replaced.
POWER WINDOW MOTOR
A permanent magnet reversible motor moves the
window regulator through a cable and drum operat-ing mechanism. A positive and negative battery con-
nection to the two motor terminals will cause the
motor to rotate in one direction. Reversing current
through these same two connections will cause the
motor to rotate in the opposite direction. In addition,
each power window motor is equipped with an inte-
gral automatic re-setting circuit breaker to protect
the motor from overloads. The power window motor
and regulator assembly cannot be repaired. If faulty,
the entire assembly must be replaced.
CIRCUIT BREAKER
An automatic re-setting circuit breaker in the fuse-
block module is used to protect the power window
system circuit. The circuit breaker can protect the
system from a short circuit, and can also protect the
system from an overload condition caused by an ob-
structed or stuck window glass or regulator. The cir-
cuit breaker can not be repaired. If faulty, it must be
replaced.
DIAGNOSIS
It is necessary that the window be free to slide up
and down for the power window system to function
properly. If the window is not free to move up and
down, the motor will overload and trip the circuit
breaker. To determine if the glass is free, disconnect
regulator plate from the glass and slide window up
and down by hand.
An alternate method is to shake the glass in the
door, with the glass positioned between the up and
down stop positions. Check that the glass can be
moved slightly from side to side, front to rear, and up
and down. Then check that window is not boundtight in the tracks. If window is free, proceed with di-
agnosis that follows. If window is not free, refer to
Group 23 - Body Components for service procedures.
CIRCUIT BREAKER
Locate correct circuit breaker in fuseblock module.
Pull out slightly, but be sure that circuit breaker ter-
minals still contact terminals in fuseblock module.
Turn ignition switch to ON position. Connect ground
wire of voltmeter to a good ground. With probe of
voltmeter positive lead, check both terminals of cir-
cuit breaker for battery voltage. If only one terminal
JPOWER WINDOWS 8S - 1

has battery voltage, circuit breaker is faulty and
must be replaced. If neither terminal has battery
voltage, repair circuit from ignition switch as re-
quired.
POWER WINDOW SWITCH
Before you proceed with this diagnosis, confirm
proper circuit breaker operation. See Circuit Breaker
diagnosis.
(1) Remove switch from door trim panel. See
Power Window Switch Remove/Install. Carefully sep-
arate multiple terminal block on wiring harness from
switch body.
(2) Check for continuity between connector cavity
for switch pin DX and a good ground. See switch con-
tinuity charts for pin identification. There should be
continuity. If OK, go to next step. If not OK, repair
ground circuit as required.
(3) Turn ignition switch to ON position. Check for
battery voltage at connector cavity for switch pin BY.
If OK, go to next step. If not OK, repair wiring to cir-
cuit breaker as required.
(4) Test switch continuity. See switch continuity
charts to determine if continuity is correct in theOFF, LOCK, UP and DOWN switch positions. If OK,
go to Power Window Motor diagnosis. If not OK, re-
place the switch.
POWER WINDOW MOTOR
Before you proceed with this diagnosis, confirm
proper switch operation. See Power Window Switch
diagnosis.
(1) Remove door trim panel (see Power Window
Motor Remove/Install).
(2) Disconnect motor connector. Apply 12 volts
across the motor terminals to check its operation in
one direction. Reverse the polarity to check the oper-
ation in the other direction. Remember, if window is
in the full up or down position the motor will not op-
erate in that direction by design. If OK, repair wire
harness from the motor to the switch as required. If
not OK, replace the motor.
(3) If motor operates in both directions, check op-
eration through its complete up and down travel. If
not OK, refer to Group 23 - Body Components to
check window glass, tracks, and regulator for stick-
ing, binding or improper adjustment.
8S - 2 POWER WINDOWSJ

DRIVER'S POWER WINDOW SWITCHÐ4-DOOR
JPOWER WINDOWS 8S - 3

DRIVER'S POWER WINDOW SWITCHÐ2-DOOR (LHD)
8S - 4 POWER WINDOWSJ

DRIVER'S POWER WINDOW SWITCHÐ2-DOOR (RHD)
JPOWER WINDOWS 8S - 5

PASSENGER'S POWER WINDOW SWITCH
8S - 6 POWER WINDOWSJ

SERVICE PROCEDURES
POWER WINDOW SWITCH REMOVE/INSTALL
(1) Remove the interior door latch release assem-
bly and control panel retaining screws (Fig. 1).
(2) Disconnect the control linkage and the wire
harness connector.
(3) Remove the latch release and control panel as-
sembly.
(4) The switch is retained to the panel with clips
(Fig. 2). Push in on the retainer part of the clip and
pry the clips.(5) To install switch, position switch and press in
retainer clips until they snap into position. Reverse
remaining removal procedures to complete installa-
tion.
POWER WINDOW MOTOR REMOVE/INSTALL
(1) Remove the interior door latch release assem-
bly and control panel retaining screws (Fig. 1).
(2) Disconnect the control linkage and the wire
harness connector.
(3) Remove the latch release and control panel as-
sembly.
(4) Remove the armrest lower retaining screws.
(5) Swing the armrest downward to a vertical po-
sition. This is necessary to disconnect the armrest
from the upper retainer clip (Fig. 3).
(6) Pull the armrest straight out from the trim
panel.
To aid in removal of the trim panel, start at
the bottom of the panel.
(7) Remove the trim panel with a wide flat-bladed
tool (Fig. 4).
(8) Remove the plastic water dam sheet.
(9) Grind the heads off 2 rivets holding reinforce-
ment to door (Fig. 5). Knock rivets out with a ham-
mer and punch.
(10) Adjust window to allow access to Torx head
screw (Fig. 6).
(11) Remove 2 screws holding bottom of regulator
to door.
(12) Remove door glass attaching Torx head screw
(Fig. 6).
Fig. 1 Power Window/Lock Control Panel Remove/
Install
Fig. 2 Power Window Switch Remove
Fig. 3 Armrest Retainer Clip
JPOWER WINDOWS 8S - 7