POWER WINDOWS
TABLE OF CONTENTS
page
page
POWER WINDOWS
DESCRIPTION
. . . . . . . . . . . . . . . . . . . . . . . . 241
OPERATION
. . . . . . . . . . . . . . . . . . . . . . . . . . 241
DIAGNOSIS AND TESTING
WINDOW MOTOR
. . . . . . . . . . . . . . . . . . . . 242
POWER WINDOWS
. . . . . . . . . . . . . . . . . . . 242
SWITCH-WINDOW
DIAGNOSIS AND TESTING
POWER WINDOW SWITCH
. . . . . . . . . . . . . 243
REMOVAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . 244
POWER WINDOWS
DESCRIPTION
The power window system allows each of the door windows to be raised and lowered electrically by actuating a
switch on the trim panel of each respective door. A master switch on the driver side front door trim panel allows the
driver to raise or lower each of the passenger door windows and to lock out the individual switches on the pas-
senger doors from operation. The power window system receives battery feed through a circuit breaker in the Junc-
tion Block (JB), only when the ignition switch is in the On position.
The power window system includes the power window switches on each door trim panel, the circuit breaker, and
the power window motors inside each door.
The power window motor and mechanism is integral to the power window regulator unit. If the power window motor
or mechanism is inoperative or damaged, the entire power window regulator unit must be replaced. (Refer to 23 -
BODY/DOOR - FRONT/WINDOW REGULATOR - REMOVAL) or (Refer to 23 - BODY/DOORS - REAR/WINDOW
REGULATOR - REMOVAL) for the window regulator service procedures.
OPERATION
POWER WINDOW SWITCH
The power windows are controlled by a window/lock switch on the trim panel of each front door. Switches in the
driver door window/lock switch allows the driver to control the passenger windows.
The power window switch for the driver side front door window has a second detent position beyond the normal
Down position that provides an automatic one-touch window down feature. This feature is controlled by the window/
lock switch.
The power window switches control the battery and ground feeds to the power window motors. All of the passenger
door power window switches receive their battery and ground feeds through the circuitry of the window/lock switch.
When the power window lockout switch is in the Lock position, the battery feed for the individual passenger door
power window switches is interrupted.
POWER WINDOW MOTOR
A permanent magnet reversible motor moves the window regulator through an integral gearbox mechanism. A pos-
itive and negative battery connection to the two motor terminals will cause the motor to rotate in one direction.
Reversing the current through these same two connections will cause the motor to rotate in the opposite direction.
In addition, each power window motor is equipped with an integral self-resetting circuit breaker to protect the motor
from overloads. The power window motor and gearbox assembly cannot be repaired and, if inoperative or damaged,
the power window regulator must be replaced.
HB
POWER WINDOWS
8N - 241