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POWER WINDOWS
8S - 1
POWER WINDOWS
DESCRIPTION
A permanent magnet motor moves each power win-
dow. Each motor raises or lowers the glass when
voltage is supplied to the motor. The direction the
motor turns depends on the polarity of the supply
voltage. The control switches control the supply volt-
age polarity.
With ignition in RUN, voltage from the #13 fuse, 60
amp, in the PDC is applied to the #26 circuit breaker,
30 amp, in the Fuse Panel. Power then goes to the
master switch terminal 5 and to the passenger’s win-
dow switches.
When the driver’s window switch is moved UP, the
contacts close a current path to:
²
Perform Drivers Door Switch test. If switch passes
test, replace defective motors.
Measure voltage at terminal 2 of connector, holding
switch in the DOWN position. Meter should read
battery voltage. If not, repair open back to Master
Switch. If additional switch is in circuit (not LH
motor), refer to Switch Testing.
²
Measure resistance at terminal 1 of connector,
holding switch in the DOWN position. Meter should
read zero ohms. Caution, maintain DOWN position
while meter lead is attached. If not, repair open back
to Master Switch. If additional switch is in circuit
(not LH motor), refer to Switch Testing. If both tests
are OK, replace regulator.
terminal 4
²
the Left Hand front window motor
²
terminal 3
terminal 1 of the Left Hand front window switch to
ground.
The motor then moves the glass up.
Current flows in a similar way when the UP contact
in one of the passenger’s window switches is closed.
Current flow through the passenger’s window motors
must go through the driver’s and the passenger’s
window switches before it reaches ground.
Each motor is protected by a built-in circuit
breaker. If a window switch is held on too long with
the window obstructed or after the window is fully up
or down, the circuit breaker opens the circuit. The
circuit breaker resets automatically as it cools. Do not
allow frequent or consecutive resetting of the circuit
breaker to continue.
WINDOW REGULATOR REPLACEMENT
FRONT DOOR REMOVAL
(1) Lower window half way.
(2) Remove screw at top of trim panel near mirror
(Fig. 2).
(3) Remove screw from demister opening.
(4) Remove screw and door handle cover.
(5) Remove screw from under armrest.
(6) Remove screw from bottom of hand hold in arm-
rest.
CAUTION: The wiring harness to the door switches
is just long enough to allow installation. If trim panel
is pulled off by hand the switch may be pulled apart.
Use a door clip tool to prevent damaging the
switches.
DIAGNOSIS (Fig. 1)
For information concerning wiring or connectors,
refer to Group 8W - Wiring Diagrams.
NO WINDOWS OPERATE
²
Measure voltage at power window feed connector
at fuse panel. Meter should read battery voltage. If
not, replace 60 amp fuse in Power Distribution Cen-
ter.
²
(7) Remove the trim panel with a wide flat blade
tool (Fig. 3).
To aid in removal of the trim panel, start at
the bottom of the panel.
(8) Unplug electrical connector from switches.
(9) Loosen 2 nuts holding glass to window regulator
(Fig. 4).
(10) Slide glass rearward to remove from nuts.
(11) Pull the glass to the full up position and tape
the glass to the door.
(12) Unplug the wire harness connector from the
window regulator.
(13) Remove 4 window regulator screws (Fig. 5).
(14) Loosen the last 2 window track screws (Fig. 5).
(15) Remove the window regulator.
Turn key to OFF and measure resistance from
ground lug on driver’s side kick panel to ground.
Meter should read zero ohms. If not, repair open to
ground.
²
Remove Master Door Lock/Power Window Switch
assembly (refer to service procedures). Measure resis-
tance at BLK wire (terminal 1). Meter should read
zero ohms. If not, repair open to ground.
²
Turn key to ON and measure voltage at terminal 5
at LH switch. Meter should read battery voltage. If
not, repair open circuit to breaker.
²
Operate Window switch. If the windows move up
and down go to Switch Testing.
²
ONE WINDOW OPERATES
Remove door panel of inoperative window,
probe harness side of unplugged motor connec-
tor.
²
²
8S - 2
POWER WINDOWS
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Fig. 1 Power Windows
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POWER WINDOWS
8S - 3
Fig. 2 Door Panel Removal
Fig. 5 Window Regulator Removal—Front Door
m (105 in. lbs.) torque.
(6) Connect the wire harness connector to the regu-
lator.
(7) Using 3M 08044 or 3M 08041 adhesive/sealant,
install the plastic water dam sheet.
(8) Place the trim panel in the installation position
and press in the nylon retainers.
(9) Install the door panel attaching screws.
Fig. 3 Trim Panel Removal
REAR DOOR REMOVAL
(1) Remove screw and door handle cover (Fig. 6).
(2) Remove screw from under armrest.
(3) Remove screw from bottom of hand hold in arm-
rest.
Fig. 4 Remove/Install Glass Attaching Nuts
INSTALLATION
(1) Place the regulator inside the door by sliding 2
loose screws in slots in door.
(2) Install the remaining 4 screws.
(3) Tighten the 4 regulator screws to 12 N
Fig. 6 Trim Panel Attachment
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m (105
(4) Remove the trim panel with a wide flat blade
tool (Fig. 3).
To aid in removal of the trim panel, start at
the bottom of the panel.
(5) Lower window until the 2 nuts holding the glass
to the regulator are visible (Fig. 7).
in. lbs.) torque.
(4) Move the glass as far rearward into the channel
as possible and pushed down. Tighten the 2 window
track screws to 12 N
m (105 in. lbs.) torque.
(5) Attach the door glass by sliding the 2 nuts into
the slots on the regulator (Fig. 4). Tighten the door
glass nuts to 12 N
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8S - 4 POWER WINDOWS
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(6) Unplug electrical connector from switch.
(7) Remove screws holding speaker.
(8) Pull speaker from door and unplug connector.
(9) Loosen 2 nuts holding glass to window regulator
(Fig. 7).
Fig. 8 Window Regulator Removal
(2) Install the remaining 4 screws.
(3) Tighten the 4 regulator screws to 12 N
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m (105
Fig. 7 Remove/Install Glass Attaching Screw
in. lbs.) torque.
(4) Move the glass as far rearward into the channel
as possible and pushed down. Tighten the 2 window
track screws to 12 N
(10) Slide glass forward to remove from nuts.
(11) Pull the glass to the full up position and tape
the glass to the door.
(12) Unplug the wire harness connector from the
window regulator.
(13) Remove 4 window regulator screws (Fig. 8).
(14) Loosen the last 2 window track screws (Fig. 8).
(15) Remove the window regulator.
m (105 in. lbs.) torque.
(5) Attach the door glass by sliding the 2 nuts into
the slots on the regulator (Fig. 7). Tighten the door
glass nuts to 12 N
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m (105 in. lbs.) torque.
(6) Connect the wire harness connector to the regu-
lator.
(7) Install the speaker.
(8) Using 3M 08044 or 3M 08041 adhesive/sealant,
install the plastic water dam sheet.
(9) Place the trim panel in the installation position
and press in the nylon retainers.
(10) Install the door panel attaching screws.
INSTALLATION
(1) Place the regulator inside the door by sliding 2
loose screws in slots in door.
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