windows to be raised and lowered electrically by
actuating a switch on each door panel. A master
switch on the drivers door allows the driver to raise
or lower each of the passenger door windows and to
lock out the individual switches on the passenger
doors from operation. The power window system
receives battery feed through a fuse in the Integrated
Power Module (IPM) only when the ignition switch is
in the RUN or ACCESSORY/ACCESSORY DELAY
position.

OPERATION

WINDOW SWITCH

The Driver Door Module (DDM) or Passenger Door

Module (PDM) control the battery and ground feeds
to the power window motors. The driver and front
passenger door power window switches are integral
to the DDM or PDM. The rear passenger switches
are inputs to the DDM or PDM. When the power
window lockout switch is depressed it will toggle
between window lockout enabled (illuminated red)
and window lockout disabled (illuminated emerald
green). When the window lockout is enabled, the
switch illuminates red and extinguishes the illumina-
tion in the passenger window lift switches indicating
that they are disabled and will not activate their cor-
responding window. When window lockout is enabled
the DDM will still be able to actuate all of the win-
dows. When the window lockout is disabled, the win-
dow lockout switch will illuminate emerald green and
again allow the passenger window lift switches to
activate their corresponding window and return illu-
mination to the passenger window switches.

WINDOW MOTOR

Window motors use permanent type magnets. The

B+ and ground applied at the motor terminal pins
will cause the motor to rotate in one direction.
Reversing current through the motor terminals will
cause the motor to rotate in the opposite direction.

DIAGNOSIS AND TESTING - POWER
WINDOWS

Any diagnosis of the power window system

should begin with the use of the DRB III

t diag-

nostic tool. For information on the use of the
DRB III

t, refer to the appropriate Diagnostic

Service Manual.

For complete circuit diagrams, refer to the appro-

priate wiring information.

POWER WINDOW SWITCH

DESCRIPTION

The power window motors are controlled by a four-

way momentary switch (up/down/express down/off)
mounted on the trim panel of each passenger door,
and four four-way momentary switches on the driver
side front door trim panel. The driver side front door
trim panel also has a two-position power window
lockout switch. Each power window switch, including
the lockout switch, is illuminated by a Light-Emit-
ting Diode (LED) that is integral to the switch pad-
dle.

The front door power window switches and the

power window lockout switch are integral to the
Driver Door Module (DDM) and Passenger Door
Module

(PDM).

The

front

door

power

window

switches and their LEDs cannot be adjusted or
repaired and, if inoperative or damaged, the entire
DDM or PDM unit must be replaced. Before a rear
window switch or PDM is replaced due to lighting,

POWER WINDOWS

8N - 45

ensure the window lockout switch on the DDM is
illuminated emerald green and not red. The rear door
power window switches and their lamps cannot be
adjusted or repaired. If inoperative or damaged, only
the affected rear door power window switch must be
replaced.

OPERATION

The front door power window switches provide an

up or down (or lock and unlock signal in the case of
the lockout switch) to the door module circuitry. The
Driver Door Module (DDM) circuitry controls the out-
put to the driver side front and rear door power win-
dow motors, and supplies electrical current as
required to the driver side rear door power window
switch. The Passenger Door Module (PDM) circuitry
controls the output to the passenger side front and
rear door power window motors, and supplies electri-
cal current as required to the passenger side rear
door power window switch.

When a DDM-integrated master power window

switch for a passenger side window is actuated, or
when the power window lockout switch is actuated to
disable the passenger door power windows, the DDM
circuitry sends a message to the PDM over the Pro-
grammable Communications Interface (PCI) data bus
to control the output to that power window motor(s).

All window switches have two detent positions in

the Down direction. The first detent provides normal
power window down operation. If this switch is
depressed to the second detent, the Auto Down cir-
cuitry is activated. The Auto-Down circuitry will
automatically move the window to its fully lowered
position, even if the power window switch is released.
The Auto-Down event will be cancelled and the win-
dow movement stopped if the power window switch is
pulled in the UP direction.

Each power window switch, including the lockout

switch, is illuminated by a Light-Emitting Diode
(LED) when the ignition switch is turned to the On
position. However, when the lockout switch is placed
in the Lock position, the LED for the locked-out front
and rear passenger door power window switches is
turned off. When the lockout switch is enabled
(lit red) the window switches on the DDM still
operate their corresponding passenger window.

DIAGNOSIS AND TESTING - POWER WINDOW
SWITCH

Any diagnosis of the power window system

should begin with the use of the DRB III

t diag-

nostic tool. For information on the use of the
DRB III

t, refer to the appropriate Diagnostic

Service Manual.

The diagnosis found here applies only to the rear

door power window switches. If the problem being

diagnosed is an inoperative power window switch
illumination lamp, but the power window switch
operates as designed, replace the faulty rear door
power window switch (verify the power lockout
switch is not actuated).

For complete circuit diagrams, refer to the appro-

priate wiring information.

(1) Disconnect and isolate the battery negative

cable.

(2) Remove the power window switch from the

rear door trim panel (Refer to 8 - ELECTRICAL/
POWER WINDOWS/POWER WINDOW SWITCH -
REMOVAL).

(3) Check the rear door power window switch con-

tinuity as shown in the power window switch test
chart (Fig. 1). If OK, (Refer to 8 - ELECTRICAL/
POWER WINDOWS - DIAGNOSIS AND TESTING).

POWER WINDOW SWITCH TEST

SWITCH

POSITION

PINS

RESISTANCE

VALUE

DIAGNOSTIC/

OFF

2 AND 4

16K OHM ± 5

2 AND 4

6K OHM ±5 %

DOWN

2 AND 4

1.36K OHM ±5

EXPRESS

DOWN

2 AND 4

.45K OHM ± 5

REMOVAL

(1) Disconnect and isolate the battery negative

cable.

(2) Remove the rear door trim panel (Refer to 23 -

BODY/DOORS - REAR/TRIM PANEL - REMOVAL).

(3) Remove the mounting fasteners and power

window switch.

Fig. 1 REAR POWER WINDOW SWITCH

8N - 46

POWER WINDOWS

POWER WINDOW SWITCH (Continued)

INSTALLATION

(1) Position the power window switch to the rear

door trim panel.

(2) Install the mounting fasteners.
(3) Install the rear door trim panel (Refer to 23 -

BODY/DOORS - REAR/TRIM PANEL - INSTALLA-
TION).

(4) Connect the battery negative cable.

WINDOW MOTOR

REMOVAL

FRONT DOOR

NOTE: Secure window in the UP position before
removing motor.

(1) Disconnect and isolate the battery negative

cable.

(2) Remove the front door trim panel (Refer to 23 -

BODY/DOOR - FRONT/TRIM PANEL - REMOVAL).

(3) Remove the front door speaker (Refer to 8 -

ELECTRICAL/AUDIO/SPEAKER - REMOVAL).

(4) Remove the watershield.
(5) Disconnect electrical harness wire connector

from the motor.

(6) Remove mounting fasteners and motor.

REAR DOOR

NOTE: Secure window in the UP position before
removing motor.

(1) Disconnect and isolate the battery negative

cable.

(2) Remove the rear door trim panel (Refer to 23 -

BODY/DOORS - REAR/TRIM PANEL - REMOVAL).

(3) Remove the rear door speaker (Refer to 8 -

ELECTRICAL/AUDIO/SPEAKER - REMOVAL).

(4) Remove the watershield.
(5) Disconnect electrical harness wire connector

from the motor.

(6)

Loosen window regulator mounting fasteners

(do not remove).

(7) Remove mounting fasteners and motor.

INSTALLATION

FRONT DOOR

(1) Install motor and mounting fasteners to regu-

lator.

(2) Connect electrical harness connector.
(3) Install front door trim panel (Refer to 23 -

BODY/DOOR - FRONT/TRIM PANEL - INSTALLA-
TION).

(4) Connect battery negative cable.

REAR DOOR

(1) Install motor and mounting fasteners to regu-

lator.

(2) Install window regulator (Refer to 23 - BODY/

DOORS - REAR/WINDOW REGULATOR - INSTAL-
LATION).

(3) Connect electrical harness connector.
(4) Install rear door trim panel (Refer to 23 -

BODY/DOORS - REAR/TRIM PANEL - INSTALLA-
TION).

(5) Connect battery negative cable.

POWER WINDOWS

8N - 47

POWER WINDOW SWITCH (Continued)

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