Chrysler 300M Service Manual page 416

LH
POWER WINDOWS
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 21
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
DIAGNOSIS AND TESTING - POWER
WINDOWS . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
WINDOW MOTOR
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
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 respec-
tive 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 passenger doors from
operation. On police vehicles, the rear window
switches are inoperable. The power window system
receives battery feed through a circuit breaker in the
junction block, only when the ignition switch is in
the On position.
The power window system includes the power win-
dow switches on each door trim panel, the circuit
breaker in the junction block, and the power window
motors inside each door. For service of mechanical
components, (Refer to 23 - BODY/DOOR - FRONT/
WINDOW REGULATOR - REMOVAL) or (Refer to
23 - BODY/DOORS - REAR - REMOVAL).
OPERATION
Front and rear door window lift motors are of the
permanent magnet type. A battery positive and neg-
ative connection to either of the two motor terminals
will cause the motor to rotate in one direction.
Reversing current through these same two connec-
tions will cause the motor to rotate in the opposite
direction.
Each individual motor is grounded through the
master switch.
POWER WINDOWS
TABLE OF CONTENTS
page
INSTALLATION
WINDOW SWITCH
DIAGNOSIS AND TESTING - WINDOW
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
INSTALLATION
DIAGNOSIS AND TESTING - POWER
WINDOWS
WIRING VOLTAGE TEST
The following circuit test sequence determines
whether or not voltage is continuous through the
body harness to switch.
(1) Remove the driver door trim panel. (Refer to 23
- BODY/DOOR - FRONT/TRIM PANEL - REMOVAL)
for proper procedures.
(2) Carefully separate wiring harness connector
from switch body.
(3) Using a voltmeter, connect the ground lead to
the Pin 10 of the wiring harness connector.
(4) Using the positive lead, check Pin 1 of the har-
ness connector for battery voltage. If OK, go to Win-
dow Switch Test below. If not OK, check 20 amp
circuit breaker in the Junction Block, if the circuit
breaker is OK, repair wire as necessary. For wiring,
specific connector type and location, refer to the
appropriate wiring information. The wiring informa-
tion includes wiring diagrams, proper wire and con-
nector repair procedures, details of wire harness
routing and retention, connector pin-out information
and location views for the various wire harness con-
nectors, splices and grounds.
POWER WINDOW MOTOR TEST
(1) Remove door trim panel, (Refer to 23 - BODY/
DOOR - FRONT/TRIM PANEL - REMOVAL) or
(Refer to 23 - BODY/DOORS - REAR/TRIM PANEL -
REMOVAL).
(2) Connect positive (+) lead from a test battery to
either of the two motor terminals.
POWER WINDOWS 8N - 21
. . . . . . . . . . . . . . . . . . . . . . . . . 22
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
. . . . . . . . . . . . . . . . . . . . . . . . . 24
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