Power Window Motor - Jeep 1997 Grand Cherokee Service Manual

ZG
DIAGNOSIS AND TESTING (Continued)
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the power window switch from the
rear door trim panel as described in this group.
(3) Carefully unplug the power window switch
from the wire harness connector.
(4) Check the switch continuity in each position, as
shown in the chart (Fig. 1). If OK, see the Power
Window Motor diagnosis in this group. If not OK,
replace the faulty switch.
Fig. 1 Rear Power Window Switch Continuity

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) Remove the door trim panel as described in
Door Module (front door) or Power Window Switch
(rear door) in this group.
(2) Disconnect the power window motor wire har-
ness connector. Apply 12 volts across the motor ter-
minals to check its operation in one direction.
Reverse the connections across the motor terminals
to check the operation in the other direction. Remem-
ber, if the window is in the full up or full down posi-
tion, the motor will not operate in that direction by
design. If OK, repair the circuits from the motor to
the door module or 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
U-NUT
FRONT DOOR
U-NUT
POWER WINDOW SYSTEMS
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 bezel near the inside door latch
release handle by inserting a straight-bladed screw-
driver in the notched end and prying gently upwards.
(3) Remove the door trim panel mounting screw
located in the bezel opening near the inside door
latch release handle (Fig. 2).
Fig. 2 Front Door Trim Panel Remove/Install
(4) Remove the trim cap and screw near the rear
of the door armrest.
(5) Remove the trim cap and screw at the upper
front corner of the trim panel.
(6) Remove the screw located above the front door
speaker grille.
(7) Using a wide flat-bladed tool such as a trim
stick, pry the trim panel away from the door around
the perimeter and remove the trim panel.
NOTE: To aid in the removal of the trim panel, start
at the bottom of the panel.
(8) Unplug the wire harness connectors from the
door module and the door courtesy lamp, if equipped.
(9) Remove the five screws that secure the door
module to the door trim panel (Fig. 3).
(10) Remove the door module from the trim panel.
(11) Reverse the removal procedures to install.
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