POWER WINDOWS
CONTENTS
page page
GENERAL INFORMATION
INTRODUCTION......................... 1
DIAGNOSIS AND TESTING
POWER VENT WINDOW MOTOR TEST....... 1
POWER WINDOW AND VENT SWITCH TEST . . 2
POWER WINDOW MOTOR TEST............ 2WIRING VOLTAGE TEST................... 3
REMOVAL AND INSTALLATION
POWER VENT WINDOW MOTOR............ 3
POWER WINDOW MOTOR................. 3
POWER WINDOW SWITCH................ 3
GENERAL INFORMATION
INTRODUCTION
Front door window lift 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 ter-
minals will cause the motor to rotate in the opposite
direction.
The power window motors ground through the
master switch in the driver door (Fig. 1) by a black
wire attached to the left cowl panel. Refer to Group
8W, Wiring Diagrams from circuit information and
component locations.
The power rear vent windows, if equipped, are
operated by switches mounted in the driver door
switch bezel. A separate switch is used for each win-
dow. Permanent magnet type motors connected to a
crank system are used to open and close the rear
vent windows. A battery positive and negative con-
nection to either of the two motor terminals will
cause the motor to rotate in one direction. Reversing
current through these same two connections willcause the motor to rotate in the opposite direction.
Refer to Group 8W, Wiring Diagrams for circuit infor-
mation and component locations.
DIAGNOSIS AND TESTING
POWER VENT WINDOW MOTOR TEST
If the power vent window motor is receiving proper
current and ground and does not operate proceed
with motor test. Refer to Group 8W, Wiring Diagrams
for circuit information and component locations.
(1) Remove D-pillar trim panel necessary to gain
access to power vent window motor wire connector,
refer to Group 23, Body for proper procedures.
(2) Disconnect power vent window motor wire con-
nector from body harness.
(3) Using two jumper wires, connect one to a bat-
tery (+) source and the other to a good ground (-).
(4) Connect the Negative (-) jumper probe to one of
the motor connector terminals.
(5) Momentarily touch the Positive (+) jumper
probe to the other motor connector terminal.
When positive probe is connected the motor should
rotate in one direction to either move window open or
closed. If window is all the way open or closed the
motor will grunt and the crank system will flex when
actuated in that one direction.
Reverse jumper probes at the motor connector ter-
minals and window should now move in opposite
direction. If window does not move or grunt, replace
the motor.
If window moved completely open or closed, reverse
the jumper probes and cycle window to the opposite
position to verify full operation.
If motor grunts and does not move, verify that
crank system is not binding.
Fig. 1 Power Window Master Switch
NSPOWER WINDOWS 8S - 1
POWER WINDOW AND VENT SWITCH TEST
(1) Remove the driver or passenger door power
window switch and bezel assembly from door trim
panel. Refer to group 23, Body for proper procedures.
(2) Using an ohmmeter, Test driver door switch for
continuity as described in (Fig. 2).
* MUST TEST WITH B+ ON PIN 9 AND
GROUND ON PIN 13 FOR CONTINUITY
BETWEEN PINS 11 AND 6
(3) Test passenger door switch for continuity as
described in (Fig. 3).
(4) If the results are not OK, replace the switch.
The driver door power window switch has a Auto-
Down feature. The switch is equipped with two
detent positions when actuating the power window
OPEN. The first detent position allows the window to
roll down and stop when the switch is released. The
second detent position actuates an integral express
roll down relay that rolls the window down after theswitch is released. When the express down relay
senses an amperage spike (motor pushing against
down stop) in the feed circuit, current is turned off to
the motor. The AUTO feature can be cancelled by
actuating the switch UP or DOWN while window is
in motion. Failure of the electronic switch to detect
an amperage spike will cause the switch to discon-
nect after approximately 11 seconds.
POWER WINDOW MOTOR TEST
If the power window motor is receiving proper cur-
rent and ground and does not operate proceed with
motor test. Refer to Group 8W, Wiring Diagrams for
circuit information and component locations.
(1) Remove front door trim panel and water shield
as necessary to gain access to power window motor
wire connector, refer to Group 23, Body for proper
procedures.
(2) Disconnect power window motor wire connector
from door harness.
(3) Using two jumper wires, connect one to a bat-
tery (+) source and the other to a good ground (-).
(4) Connect the Negative (-) jumper probe to one of
the motor connector terminals.
(5) Momentarily touch the Positive (+) jumper
probe to the other motor connector terminal.
When positive probe is connected the motor should
rotate in one direction to either move window up or
down. If window is all the way up or down the motor
will grunt and the inner door panel will flex when
actuated in that one direction.
(6) Reverse jumper probes at the motor connector
terminals and window should now move in opposite
direction. If window does not move or grunt, replace
the motor.
If window moved completely up or down, reverse
the jumper probes and cycle window to the opposite
position to verify full operation.
Fig. 2 Driver Side Power Window Switch Connector
DRIVER DOOR POWER WINDOW SWITCH
TEST
SWITCH POSITIONCONTINUITY
BETWEEN
OFF 13 and 1
13 and 2
13 and 3
13 and 4
13 and 5
13 and 6
13 and 7
13 and 8
UP DRIVER 11 and 8
*DOWN DRIVER 11 and 6
*X DOWN DRIVER 11and 6
UP PASSENGER 9 and 4
DOWN PASSENGER 9 and 2
LEFT VENT OPEN 11 and 7
LEFT VENT CLOSE 9 and 3
RIGHT VENT OPEN 9 and 1
RIGHT VENT CLOSE 11 and 5
Fig. 3 Passenger Door Power Window Switch
8S - 2 POWER WINDOWSNS
DIAGNOSIS AND TESTING (Continued)
If motor grunts and does not move, verify that reg-
ulator is not binding.
WIRING VOLTAGE TEST
The following wiring test determines whether or
not voltage is continuous through the body harness
to switch.
(1) Remove the master power window switch and
bezel assembly from the driver door. Refer to Group
23, Body for proper procedures.
(2) Disconnect wire connector from back of power
window switch.
(3) Switch ignition ON position.
(4) Connect the clip end of a 12 volt test light to
Pin 13 in door harness connector at the window
switch. Touch the test light probe to Pin 9 and then
to Pin 11.
²If the test light illuminates, the wiring circuit
between the battery and switch is OK.
²If light does not illuminate, check the 40 amp
fuse in the Power Distribution Center or for a broken
wire.
²The power window motors are protected with
Positive Temperature Coefficient (PTC) device that
prevents motor burn out. Check Junction Block.
²Refer to Group 8W, Wiring Diagrams for circuit
information and component locations.
REMOVAL AND INSTALLATION
POWER VENT WINDOW MOTOR
REMOVAL
(1) Disconnect battery negative cable.
(2) Remove D-pillar trim panel.
(3) Disconnect wire connector from power vent
motor.
(4) Remove nut holding crank to vent glass.
(5) Remove bolts holding power vent motor to
D-pillar (Fig. 4).
(6) Remove power vent motor.
(7) Pull the crank system from the motor.
INSTALLATION
Before installing crank, cycle replacement motor to
the open position. Install crank hinge in extended
position to the motor and for installation, reverse the
above procedures.
POWER WINDOW SWITCH
To remove power window switches refer to Group
23, Body for proper procedures.
POWER WINDOW MOTOR
WARNING: DO NOT HAVE ANY HANDS OR FIN-
GERS IN SECTOR GEAR AREA WHERE THEY CAN
BE PINCHED BY SMALL MOVEMENTS OF REGULA-
TOR LINKAGE.
REMOVAL
(1) Tape the window in its existing position to
remove its weight from the regulator system.
(2) Cut and remove the tie wrap at the window
motor. Its no longer required.
(3) Disconnect window motor wire connector from
door harness.
(4) Remove screws and nuts holding window motor
to the inner panel.
(5) Remove the motor from the door inner panel,
let it hang from the cables.
(6) With the cables still attached to the failed
motor, Install the replacement motor to the door
inner panel. Tighten down the screws and nuts to 3.4
to 4.5 N´m ( 30 to 40 in. lbs.) of torque.
(7) Separate the failed motor from regulator by:
²Removing the drum cover plate.
²Lift the cable guide off the motor, the drum with
cables, will be lifted off simultaneously (Fig. 5).
CAUTION: Do not allow the drum to separate from
the cable guide, by dropping drum or letting the
cables unwind.
INSTALLATION
(1) Install the cable guide and drum into the
replacement motor.
Fig. 4 Vent Window Motor
NSPOWER WINDOWS 8S - 3
DIAGNOSIS AND TESTING (Continued)
CAUTION: The drum may require a slight rotation
to install onto the motor drive shaft. Rotate the
drum with the use of needle nose pliers or a similar
tool. If, the drum does not align with the motor
shaft by a slight rotation, then, the glass should be
lowered a small amount approximately 1 to 2
inches. The drum will rotate when the glass is low-
ered. Lowering the glass will require assistance of a
second person.
(2) install the replacement cover plate onto the
replacement motor. Crimp toy tabs.
(3) Connect the wiring harness to the window
motor connector.
(4) Remove the tape holding the window in place
and test window operation.
Fig. 5 Power Window Motor Removal
8S - 4 POWER WINDOWSNS
REMOVAL AND INSTALLATION (Continued)
POWER SEATS
CONTENTS
page page
MEMORY SEAT AND MIRROR SYSTEM....... 3POWER SEATS........................... 1
POWER SEATS
INDEX
page page
GENERAL INFORMATION
INTRODUCTION......................... 1
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES................ 1POWER SEAT SWITCH.................... 1
SEATMOTORS .......................... 1
GENERAL INFORMATION
INTRODUCTION
Power seats can be adjusted in eight directions; up,
down, forward, back, tilt forward, or tilt rearward.
Four reversible motors and a transmission located on
the seat tracks provide the various seat movements.
The electrical circuit is protected by a 40 amp fuse in
the Power Distribution Center (PDC) and a 30 amp
circuit breaker located in the wire harness under the
driver's seat.
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES
Before testing the seat functions, verify that the
battery is fully charged and the terminals cleaned
and tightened to ensure proper connections. If the
battery is not fully charged, refer to Group 8A Bat-
tery for proper testing procedures.
The following test will determine if the circuit is
complete through the body harness to the switch:
Using a voltmeter, verify the condition of the power
seat circuit breaker located under the driver's seat.
The circuit breaker also protects the passenger side
power seat track circuit. Check both sides of the cir-
cuit breaker connector for voltage, on the wire side.
²If not OK replace circuit breaker.
²If battery voltage is detected on both sides of the
circuit breaker. Refer to Seat Motor in the Diagnostic
and Testing in this section.²If seat motors test OK, refer to the Seat Switch
in the Diagnostic and Testing in this section.
²Refer to Group 8W Wiring Diagrams for wire
circuit information.
SEAT MOTORS
(1) Remove power seat switch from seat. Refer to
Group 23 Body for procedures.
(2) Disconnect wire connector.
(3) Using a voltmeter check for battery voltage at
Pin 5. Using an ohmmeter, check Pin 1 for ground.
(4) To test the seat motors, refer to (Fig. 1) and
verify proper seat responses. Using two jumper
wires, connect one to a battery supply and the other
to a ground. Connect the other ends to the seat wire
harness connector as described in (Fig. 1). If any
motor fails to operate, check wire connectors to the
motor. If not OK, repair as necessary. If OK, replace
seat motor/track assembly.
POWER SEAT SWITCH
(1) Remove power seat switch from seat. Refer to
Group 23 Body for procedures.
(2) Using an ohmmeter, perform the switch conti-
nuity tests in (Fig. 2). If there is no continuity at any
of the switch positions, replace switch.
NSPOWER SEATS 8R - 1
MEMORY SEAT AND MIRROR SYSTEM
INDEX
page page
GENERAL INFORMATION
INTRODUCTION......................... 3
DESCRIPTION AND OPERATION
MEMORY SELECTOR SWITCHES............ 3
POSITION SENSING SEAT AND RECLINER
POTENTIOMETERS..................... 4
POWER SIDE VIEW MIRROR POSITION
SENSING............................. 3
SEAT AND RECLINER SWITCHES............ 4
DIAGNOSIS AND TESTING
CIRCUIT DESCRIPTION.................... 7DIAGNOSTIC MODE...................... 5
MEMORY SELECTOR SWITCHES............ 4
SEAT AND RECLINER POSITION SENSING.... 9
SIDE VIEW MIRROR SWITCH STUCK......... 4
SERVICE PROCEDURES
REMOTE KEYLESS ENTRY (RKE) DATA LINK . . . 9
REMOVAL AND INSTALLATION
MEMORY SWITCHES..................... 10
SEAT TRACK ASSEMBLY.................. 10
GENERAL INFORMATION
INTRODUCTION
Memory Seat and Mirrors system is available only
on Town and Country (Luxury Class) vehicles.
Refer to Group 8W, Wiring Diagrams for circuit
information and component locations. Refer to the
proper Body Diagnostic Procedures manual for addi-
tional diagnostic information.
The Memory Seat/Mirror Module (MSM Module) is
mounted under the driver's seat, on the inboard
upper track with Torx head screws. The MSM Mod-
ule provides the driver with an adjustable seat,
recliner, and power side view mirror positioning con-
troller that remembers stored positions and will
recall those positions on command.
The Memory Seat/Mirror Module reads all seat and
recliner switch inputs and operates the seat and
recliner motors in response to switch actuation. The
MSM Module monitors position sensing potentiome-
ters (mounted on the motors) for seat and recliner
positioning.
The MSM Module operates the power side view
mirror motors through solid state drivers (electronic
switches) in the recall mode only, and follows the
glass face position by means of rheostats built into
the motor pack assembly of the mirrors. Normal elec-
trical operation of the mirrors is accomplished by
actuation of the power mirror switch.
The Memory Seat/Mirror Module monitors the mem-
ory switches and has the capability to store desired
positions in non-volatile memory in response to a valid
input sequence. Refer to Memory Selector Switches (1,
2, and S) and Remote Keyless Entry (RKE) Data Link.
The memory seat/mirror module also can activate the
previously described motors in response to a recall
request from an individual memory switch.
The Memory Seat/Mirror Module monitors a data
link between the RKE receiver and the Body Control
Module (BCM) and will respond to stored information
or modify stored information when requested by a
valid data stream.
The Memory Seat/Mirror Module is connected to
the system through a seat wiring harness that inter-
faces will all of the components within the seat struc-
ture, and with electrical distribution wiring harness
connections to the non-seat mounted components.
The module operates the seat and recliner motors
through relays: four dedicated to track forward/rear-
ward, track front up/down, track rear up/down, and
recliner forward/rearward. A fifth relay controls the
direction of operation of those motors.
DESCRIPTION AND OPERATION
POWER SIDE VIEW MIRROR POSITION SENSING
The mirror switch on the instrument panel oper-
ates the outside rear view mirrors independently of
the memory seat/mirror module. The module acti-
vates the mirror motors only when in its recall mode.
The side view mirrors have position sensing rheo-
stats built into each side view mirror vertical and
horizontal motor assembly. These rheostats provide a
sense voltage to the memory seat/mirror module that
indicates where the mirror is moving to or where its
position is at when the module is activated but the
mirror motor is not moving.
MEMORY SELECTOR SWITCHES
The memory selector switches are mounted on the
driver's door trim panel within easy reach of the
driver. They provide a means to set or recall either of
NSPOWER SEATS 8R - 3
CIRCUIT DESCRIPTION
Power to both driver and passenger seats, as well
as power door locks, rear blower, and front fog lamps
(if so equipped), is provided by the A3 circuit through
a 40 amp MAXI-fuse in the Power Distribution Cen-
ter (PDC) under the hood. If all of these devices are
nonfunctional, replace the MAXI-fuse. If the new
MAXI-fuse blows immediately, correct the wiring
short to Ground that could be on any of those afore-
mentioned loads before proceeding further.
Once the power is back ON, if the power seats still
do not work, check the 30 amp circuit breaker that is
located in the driver's seat wiring harness approxi-
mately 10 inches from the 4-way connector. The
power feed circuit to the 30 amp circuit breaker is 14
ga. A3 RD/WT.
Following the 30 amp circuit breaker is a 14 ga.
wire designated as F35 RD that provides power into
the Memory Seat/Mirror Module and is double
crimped with a 14 ga. F35A RD that provides power
to the passenger seat through the 4-way connector.If the power door locks, rear blower, and front fog
lamps (if so equipped) are functional and the seats
are both nonfunctional, repair/replace the open wir-
ing and/or circuit breaker in the driver's seat harness
to correct the condition.
Ensure that the 12 ga. ground wire Z1 BK from
the electrical distribution wiring ground splice into
the 4-way connector is providing ground. The Z1 BK
is double crimped at the seat harness side of the
4-way connector taking a 14 ga. Z1 BK into the
10-way connector (cavity 7) 14 ga. This double crimp
carries a 20 ga. Z1A BK to cavity 3 of the power seat
switch 10-way. If the passenger power seat is func-
tional, and the driver's seat is nonfunctional examine
the circuit F35 RD from the double crimped circuit
breaker connector into the 10-way connector cavity 8
of the control module for continuity. Repair or replace
as necessary. If the driver's seat is still nonfunc-
tional, use a multi-function meter to check the P9 RD
20 ga. circuit from the control module 21-way connec-
tor (cavity 11) to the power seat switch 10-way con-
Fig. 5 Memory Seat/Mirror Module 21-Way Connector
NSPOWER SEATS 8R - 7
DIAGNOSIS AND TESTING (Continued)
nector (cavity 5)This is a low current battery
feed from the control module that will not illu-
minate a test lamp.
During shipping of the vehicle, an M1 circuit 10
amp fuse (labeled IOD) is temporarily removed from
the PDC in the engine compartment to eliminate
unnecessary battery depletion. However, this fused
circuit being open (that feeds through the electrical
distribution wiring to cavity 16 of the 25-way connec-
tor) will not stop manual seat actuations from taking
place (only recall mode requests) during shipping.
(1) If the memory seat/mirror module does not
respond with a relay click to any seat switch input
(as well as the desired motion) when actuated, pro-
ceed with the following analysis:²Verify power ON F35 and ground Z1 into the
system as indicated above.
²Verify all connectors are mated with the memory
seat/mirror module.
²Place the vehicle gear shift lever in any position
except PARK (causes the Memory Seat/Mirror Mod-
ule to wake-up and provide a position sense voltage
to the seat motor potentiometers and the mirror
rheostat(s). This voltage can be checked at the appro-
priate cavities of the 21 and 25-way connectors.
²Verify the switch connector is mated with the
seat switch on the inside of the outboard side-shield.
²Verify battery voltage at the P9 circuit refer-
enced to the Z1A ground reference (cavity 1) of the
seat switch. If P9 low current battery is not available
Fig. 6 Memory Seat/Mirror Module 25-Way Connector
8R - 8 POWER SEATSNS
DIAGNOSIS AND TESTING (Continued)