Jeep Cherokee 2000 Service Manual - page 547
POWER WINDOW SWITCH
The diagnosis found here applies only to the rear
door power window switches. For diagnosis of the
front door power window switches, see Door Module
in this group. If the problem being diagnosed is an
inoperative power window switch illumination lamp,
but the power window switch operates as designed,
replace the faulty switch. For circuit descriptions and
diagrams, refer to 8W-60 - Power Windows in Group
8W - Wiring Diagrams.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the power window switch from the
rear door trim panel.
(3) Check the power window switch continuity in
each position as shown in the Rear Door Power Win-
dow Switch Continuity chart (Fig. 3). If OK, see the
Power Window Motor diagnosis in this group. If not
OK, replace the faulty switch.
POWER WINDOW MOTOR
For circuit descriptions and diagrams, refer to
8W-60 - Power Windows in Group 8W - Wiring Dia-
grams. Before you proceed with this diagnosis, con-
firm proper switch operation. See the Door Module
and/or Power Window Switch diagnosis in this group.
(1) Disconnect and isolate the battery negative
cable. Remove the trim panel from the door with the
inoperative power window.
(2) Unplug the power window motor wire harness
connector. Apply 12 volts across the motor terminals
to check its operation in one direction. Reverse the
connections across the motor terminals to check the
operation in the other direction. Remember, if the
window is in the full up or full down position, the
motor will not operate in that direction by design. If
OK, repair the circuits from the power window motor
to the door module or the power window switch as
required. If not OK, replace the faulty motor.
(3) If the motor operates in both directions, check
the operation of the window glass and lift mechanism
through its complete up and down travel. There
should be no binding or sticking of the window glass
or lift mechanism through the entire travel range. If
not OK, refer to Group 23 - Body to check the win-
dow glass, tracks, and regulator for sticking, binding,
or improper adjustment.
REMOVAL AND INSTALLATION
DOOR MODULE
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the screws that secure the front door
trim panel to the inner door panel (Fig. 4).
(3) Using a trim stick or another suitable wide
flat-bladed tool, gently pry the front door trim panel
away from the door around the perimeter to release
the trim panel retainers.
NOTE: To aid in the removal of the trim panel, start
at the bottom of the panel.
(4) Lift the front door trim panel upwards and
away from the inner door panel far enough to disen-
gage the top of the panel from the inner belt weath-
erstrip.
(5) Pull the front door trim panel away from the
inner door panel far enough to access the inside door
latch release and lock linkage rods near the back of
the inside door remote controls.
(6) Unsnap the plastic retainer clips from the
inside door remote control ends of the latch release
and lock linkage rods, and remove the rod ends from
the inside door remote controls.
POWER WINDOWS
OFF (NORMAL)
C2 PIN 2 & C2 PIN 3
C2 PIN 4 & C2 PIN 9
UP
C2 PIN 2 & C2 PIN 3
C2 PIN 9 & C2 PIN 10
DOWN
C2 PIN 2 & C2 PIN 10
C2 PIN 4 & C2 PIN 9
Fig. 2 PDM Power Window Switch Continuity
SWITCH POSITION
CONTINUITY BETWEEN
OFF (NORMAL)
1&4
2&5
UP
1&6
2&5
DOWN
1&4
5&6
Fig. 3 Rear Door Power Window Switch Continuity
8S - 4
POWER WINDOW SYSTEMS
XJ
DIAGNOSIS AND TESTING (Continued)