Jeep 1996 Grand Cherokee Service Manual - Power Window Systems
POWER WINDOW SYSTEMS
CONTENTS
page
page
GENERAL INFORMATION
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . 1
POWER WINDOW SYSTEM . . . . . . . . . . . . . . . . 1
DESCRIPTION AND OPERATION
BODY CONTROL MODULE . . . . . . . . . . . . . . . . . 2
CIRCUIT BREAKER . . . . . . . . . . . . . . . . . . . . . . . 2
DOOR MODULE . . . . . . . . . . . . . . . . . . . . . . . . . 2
POWER WINDOW MOTOR . . . . . . . . . . . . . . . . . 2
POWER WINDOW SWITCH . . . . . . . . . . . . . . . . 1
DIAGNOSIS AND TESTING
CIRCUIT BREAKER . . . . . . . . . . . . . . . . . . . . . . . 3
DOOR MODULE . . . . . . . . . . . . . . . . . . . . . . . . . 3
POWER WINDOW MOTOR . . . . . . . . . . . . . . . . . 4
POWER WINDOW SWITCH . . . . . . . . . . . . . . . . 4
POWER WINDOW SYSTEM . . . . . . . . . . . . . . . . 2
REMOVAL AND INSTALLATION
DOOR MODULE . . . . . . . . . . . . . . . . . . . . . . . . . 5
POWER WINDOW MOTOR . . . . . . . . . . . . . . . . . 6
POWER WINDOW SWITCH . . . . . . . . . . . . . . . . 5
GENERAL INFORMATION
INTRODUCTION
Power
windows
are
standard
factory-installed
equipment on this model. This group covers diagnosis
and service of only the electrical components in the
power window system. For service of mechanical
components, such as the regulator, lift plate or win-
dow tracks, refer to Group 23 - Body Components.
Following are general descriptions of the major
components in the power window system. Refer to
8W-60 - Power Windows in Group 8W - Wiring Dia-
grams for complete circuit descriptions and diagrams.
Refer to the owner’s manual for more information on
the features and use of this system.
POWER WINDOW SYSTEM
The power window system allows all of the door
windows to be opened or closed by operating a switch
on the trim panel for that door. The master switches
on the driver’s door trim panel can be operated to
open or close any of the door windows. In addition, a
lockout switch on the driver’s door trim panel allows
the driver to disable all of the passenger door win-
dow switches.
The power window system includes the door mod-
ules mounted in each front door, the switches
mounted on the rear doors, and the power window
motors mounted in each door. In addition, several
features and functions of the power window system
are made possible because of the communication of
the door modules on the Chrysler Collision Detection
(CCD) data bus network.
This system operates with battery power supplied
through a circuit breaker in the junction block, only
when the ignition switch is in the On position. How-
ever, a feature of this system will allow the windows
to be operated for up to thirty seconds after the igni-
tion switch is turned to the Off position, or until a
front door is opened, whichever occurs first.
An auto-down feature allows the driver’s door win-
dow to be lowered all the way, even if the window
switch is released. The driver’s door window switch
must be depressed in the down direction to a second
detent to begin an auto-down event. Depressing the
switch again in the up or down direction will stop the
window and cancel the auto-down event.
DESCRIPTION AND OPERATION
POWER WINDOW SWITCH
The power windows are controlled by a two-way
momentary switch mounted in the trim panel of each
passenger
door,
and
four
two-way
momentary
switches in the driver’s door. The driver’s door also
has a two-position power window lockout switch.
Each switch, except the lockout switch, is illumi-
nated 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 posi-
tion, the LED for the locked-out front and rear pas-
senger door switches is turned off.
The front door power window switches and the
power window lockout switch are integral to the
Driver Door Module (DDM) or Passenger Door Mod-
ule
(PDM),
respectively.
These
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.
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POWER WINDOW SYSTEMS
8S - 1