LOWER DRIVE UNIT TRACK &
RACK
DESCRIPTION
Vehicles equipped with a power sliding side door
utilize a lower drive unit track or door track and
rack assembly. This track provides a mating rack
gear (Fig. 13) for the lower drive unit to engage. The
track also accepts the lower hinge rollers, which
helps support the weight of the side door as well as
providing a smooth surface for the hinge rollers to
move upon.
The lower door track is a replaceable component.
Consult your Mopar parts catalog for specific part
numbers.
OPERATION
With the start of a power door open cycle, the door
motor drives the flex drive assembly. The flex drive
assembly drives the lower drive unit. A metal drive
gear which is part of the lower drive unit, meshes
with the door track rack teeth and moves the door
into the full open position. The same operation
repeats itself, during a power close cycle only the sys-
tem rotates in the opposite direction.
REMOVAL
(1) Disconnect and isolate the negative battery
cable.
(2) Remove the side door sill plate from the lower
of the door opening. Refer to the Body section for the
procedure.
(3) Remove the hold-open striker. Refer to Body for
the procedure.
(4) Position a floor jack, with a block of wood
under the leading edge of the side door to support it
(Fig. 14).
(5) Remove the lower hinge assembly from the
door. Refer to the Body section of the service manual
for the procedure.
(6) Position the wire harness assembly out of door
opening, this will allow sufficient room to remove the
door track.
(7) Pull back the sealing patches and remove the
lower track retaining nuts (Fig. 15).
(8) Carefully remove the lower door track from the
vehicle.
INSTALLATION
(1) Carefully position the lower door track in the
vehicle.
(2) Install the lower track retaining nuts and
install the sealing patches. Torque the nuts to 70 in.
lbs.
(3) Install the lower hinge assembly on the door.
Refer to the Body section of the service manual for
the procedure.
Fig. 13 Rack Access Hole Locations
1 - Lower Door Track and Rack Assembly
2 - Wire Harness
3 - Rack Access Hole Sealing Patches
4 - Lower Drive Unit Cover
Fig. 14 Supporting Side Door
8N - 34 POWER SLIDING DOOR SYSTEMRS
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POWER LOCKS
TABLE OF CONTENTS
page page
POWER LOCKS
DESCRIPTION.........................38
OPERATION...........................39
DOOR CYLINDER LOCK SWITCH
DESCRIPTION.........................40
OPERATION...........................40
DIAGNOSIS AND TESTING - DOOR
CYLINDER LOCK SWITCH..............40
REMOVAL.............................41
INSTALLATION.........................41
DOOR LOCK MOTOR
DIAGNOSIS AND TESTING - DOOR LOCK
MOTOR .............................41
DOOR LOCK SWITCH
DIAGNOSIS AND TESTING - DOOR LOCK
SWITCH............................41
REMOVAL.............................42
INSTALLATION.........................42
KEYLESS ENTRY TRANSMITTER
DIAGNOSIS AND TESTING - KEYLESS ENTRY
TRANSMITTER.......................42STANDARD PROCEDURE
STANDARD PROCEDURE - HORN CHIRP
PREFERENCE........................42
STANDARD PROCEDURE - BATTERY
REPLACEMENT.......................42
STANDARD PROCEDURE - RKE
TRANSMITTER PROGRAMING...........43
SPECIFICATIONS
RANGE.............................43
BATTERY...........................43
REMOTE KEYLESS ENTRY MODULE
DESCRIPTION.........................43
OPERATION...........................43
DIAGNOSIS AND TESTING - REMOTE
KEYLESS ENTRY MODULE..............43
REMOVAL.............................44
INSTALLATION.........................44
SLIDING DOOR LOCK MOTOR
REMOVAL.............................44
INSTALLATION.........................44
POWER LOCKS
DESCRIPTION
POWER DOOR LOCK SYSTEM
The front doors, sliding door(s) and liftgate are
equipped with actuator motors to lock or unlock the
latch mechanisms. The door lock actuator motor is
not serviced separately from the door latch, except
for the sliding door(s).
AUTOMATIC DOOR LOCK
The vehicle comes with two options for power door
locks:
²Rolling automatic lock (ENABLE), doors auto-
matically lock at approximately at 25.7 Km/h (16
mph).
²No rolling automatic lock (DISABLE), doors do
not automatically lock when the vehicle is moving.
AUTOMATIC DOOR UNLOCK
The doors will unlock automatically on vehicles
equipped with power door locks if:
²Auto door locks feature is enabled and automatic
unlock is enabled.²The transmission was in gear and speed was
above zero.
²The transmission in park or neutral and speed
is zero.
²Any door (excluding liftgate) opens.
DOOR LOCK INHIBIT
The BCM cancels out the door lock switch actua-
tion, when the key is in the Ignition Switch and
either front door is open.
Pressing the key fob RKE lock/unlock under these
conditions results in normal lock/unlock activation.
CENTRAL LOCKING
If equipped with Vehicle Theft Security System
(VTSS), all the doors can be locked with the key by
using the driver door lock cylinder. Turning the key
to the lock position will lock all the doors.
DOOR LOCK CIRCUIT PROTECTION
The door lock system is protected by a 40 amp fuse
located in the IPM. The BCM receives lock/unlock
input and will turn on the appropriate drivers and
provide a voltage level to the door lock motor for a
specific time. The IPM is located along the side of the
vehicle battery in the engine compartment.
8N - 38 POWER LOCKSRS
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POWER MIRRORS
TABLE OF CONTENTS
page page
POWER MIRRORS
DESCRIPTION.........................45
OPERATION...........................45
DIAGNOSIS AND TESTING - POWER
MIRRORS...........................46
AUTOMATIC DAY / NIGHT MIRROR
DESCRIPTION.........................47
OPERATION...........................47
DIAGNOSIS AND TESTING - AUTOMATIC DAY
/ NIGHT MIRROR......................47
POWER FOLDAWAY MIRROR SWITCH -
EXPORT
DESCRIPTION.........................48OPERATION...........................48
REMOVAL.............................48
INSTALLATION.........................49
REMOTE SWITCH
DIAGNOSIS AND TESTING - REMOTE
SWITCH............................49
REMOVAL.............................49
INSTALLATION.........................49
SIDEVIEW MIRROR
REMOVAL.............................49
POWER MIRRORS
DESCRIPTION
If equipped with power mirrors, the control switch
is located on the instrument panel to the left of the
headlamp switch.
OPERATION
The power mirrors are connected to battery feed at
all times. Each mirror head contains two electric
motors, two drive mechanisms, an electric heating
element, and the mirror glass. If the vehicle is
equipped with the optional memory system, the
driver side mirror head also contains both a horizon-
tal and a vertical motor position sensor. One motor
and drive controls mirror up-and-down movement,
and the other controls right-and-left movement.An optional driver side outside electrochromic mir-
ror is able to automatically change its reflectance
level. This mirror is controlled by the circuitry of the
automatic day/night inside rear view mirror. A thin
layer of electrochromic material between two pieces
of conductive glass make up the face of the mirror.
Two photocell sensors on the inside rear view mirror
are used to monitor light levels and adjust the reflec-
tance of both the inside and driver side outside mir-
rors. This change in reflectance helps to reduce the
glare of headlamps approaching the vehicle from the
rear. (Refer to 8 - ELECTRICAL/POWER MIRRORS/
AUTOMATIC DAY / NIGHT MIRROR - DESCRIP-
TION) for more information on this system.
The motors which operate the mirrors are part of
the mirror assembly and cannot be serviced sepa-
rately.
RSPOWER MIRRORS8N-45
ProCarManuals.com
ered. This defeats the day-detect logic. If OK, go to
Step 8. If not OK, replace the faulty mirror unit.
(8) With the mirror darkened, place the transmis-
sion gear selector lever in the Reverse position. The
automatic day/night mirror should return to its nor-
mal reflectance. If not OK, replace the faulty mirror
unit.
Bench testing both mirrors can be done, of care is
exercised. For an inside mirror, the pin closest to he
mount is 12V (+), the next is 12V (-). The third is
reverse override. The fourth is outside mirror (+),
and the fifth is outside mirror (-).Do not apply 12
volts to the fourth and fifth pins.With 12 volts
on pins 1 and 2, the mirror can be tested by blocking
the rear sensor and shining a light into the forward
sensor. For an outside mirror, there is a 2±pin con-
nector. Applying 1.2 volts will cause the mirror to
dim. If the mirror does not dim, the entire glass
assembly can be replaced just as it is when the glass
is broken.
WARNING: Do not apply 12 volts to the outside mir-
ror. Damage to the mirror will result.
POWER FOLDAWAY MIRROR
SWITCH - EXPORT
DESCRIPTION
These vehicles may be equipped with Power Fold-
away Mirrors. This feature allows both the driver
and passenger side view mirrors to fold inward
(retract) on demand. The vehicle has an additional
switch located on the steering column that controls
the folding function of the mirror assembly (Fig. 2).
The fold-away side view mirror is attached to the
vehicle's door in the same manner as mirrors without
the fold-away option. The fold-away mirrors unique
option is the internal motor which allows the mirrors
to fold inward on demand. The fold-away mirror
motor is not serviceable separately and if a motor is
found to be faulty the entire side view mirror must
be replaced.
OPERATION
When the mirror retract switch is depressed, both
of the side view mirrors will fold inward, Thus mak-
ing the overall width of the vehicle the smallest pos-
sible. This can be helpful were parking space is a
absolute minimum.
When the driver's door is opened, only the driver's
door mirror will unfold. If the passenger door is
opened, both mirrors will unfold.
The power fold away mirror system consists of the
following components: mirror switch, side view mir-ror, relay, wires and fuse. Refer to the appropriate
wiring information. The wiring information includes
wiring diagrams, proper wire and connector repair
procedures, details of wire harness routing and
retention, connector pin-out information and location
views for the various wire harness connectors, splices
and grounds.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the upper and lower steering column
shroud (Refer to 19 - STEERING/COLUMN/LOWER
SHROUD - REMOVAL).
(3) Disconnect electrical harness connector.
(4) Remove switch from steering column shroud
(Fig. 3).
Fig. 2 POWER FOLDAWAY MIRROR SWITCH
1 - POWER FOLDAWAY MIRROR SWITCH
2 - STEERING COLUMN
Fig. 3 POWER FOLDING MIRROR SWITCH
1 - STEERING COLUMN SHROUD
2 - POWER FOLDAWAY SWITCH
8N - 48 POWER MIRRORSRS
AUTOMATIC DAY / NIGHT MIRROR (Continued)
ProCarManuals.com
INSTALLATION
(1) Install switch to steering column shroud.
(2) Connect wire harness connector.
(3) Install the upper and lower steering column
shroud (Refer to 19 - STEERING/COLUMN/LOWER
SHROUD - INSTALLATION).
(4) Connect the battery negative cable.
REMOTE SWITCH
DIAGNOSIS AND TESTING - REMOTE SWITCH
(1) Remove power mirror switch. (Refer to 8 -
ELECTRICAL/POWER MIRRORS/POWER MIRROR
SWITCH - REMOVAL).
(2) Disconnect wiring harness at switch connector.
(3) Using a ohmmeter, test for continuity between
the terminals of the switch (Fig. 4).
MIRROR SWITCH TEST
MIRROR SELECT SWITCH IN ªLEFTº
POSITION
Move
ButtonContinuity Between
UP PIN 9 - PIN 12,
PIN 6 - PIN 11,
PIN 9 - PIN 13
LEFT PIN 9 - PIN 7,
PIN 6 - PIN 11,
PIN 9 - PIN 8
DOWN PIN 9 - PIN 6,
PIN 12 - PIN 11,
PIN 13 - PIN 11
RIGHT PIN 9 - PIN 6,
PIN 7 - PIN 11,
PIN 8 - PIN 11
MIRROR SELECT SWITCH IN ªRIGHTº
POSITION
Move
ButtonContinuity Between
UP PIN 9 - PIN 13,
PIN 1 - PIN 11,
PIN 9 - PIN 12
MIRROR SELECT SWITCH IN ªLEFTº
POSITION
LEFT PIN 9 - PIN 8,
PIN 1 - PIN 11,
PIN 9 - PIN 7
DOWN PIN 9 - PIN 1,
PIN 13 - PIN 11,
PIN 12 - PIN 11
RIGHT PIN 9 - PIN 1,
PIN 8 - PIN 11,
PIN 7 - PIN 11
(4) If results shown in the table are not obtained,
replace the switch.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove instrument panel lower cover.
(3) From behind headlamp switch assembly,
depress retaining tabs and push switch from instru-
ment panel.
(4) Disconnect wire connector from power mirror
switch.
(5) Disengage lock tabs above and below the mir-
ror switch.
(6) Remove power mirror switch from headlamp
switch bezel.
INSTALLATION
(1) Install power mirror switch to the headlamp
switch bezel.
(2) Connect wire connector to the power mirror
switch.
(3) Insert headlamp switch assembly into instru-
ment panel.
(4) Install instrument panel lower cover.
(5) Connect battery negative cable.
SIDEVIEW MIRROR
REMOVAL
For service procedures, (Refer to 23 - BODY/EXTE-
RIOR/SIDE VIEW MIRROR - REMOVAL).
Fig. 4 Mirror Switch
RSPOWER MIRRORS8N-49
POWER FOLDAWAY MIRROR SWITCH - EXPORT (Continued)
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POWER SEAT SYSTEM
TABLE OF CONTENTS
page page
POWER SEAT SYSTEM
DESCRIPTION
DESCRIPTION........................50
DESCRIPTION - MEMORY SYSTEM.......51
OPERATION
OPERATION - POWER SEAT SYSTEM.....52
OPERATION - MEMORY SYSTEM.........52
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - POWER SEAT
SYSTEM............................52
DIAGNOSIS AND TESTING - MEMORY
SYSTEM............................53
DRIVER SEAT SWITCH
DESCRIPTION.........................53
OPERATION...........................54
DIAGNOSIS AND TESTING - DRIVER SEAT
SWITCH............................54
REMOVAL.............................55
INSTALLATION.........................55
MEMORY SET SWITCH
DESCRIPTION.........................55
OPERATION...........................56
DIAGNOSIS AND TESTING - MEMORY
SWITCH............................56REMOVAL.............................56
INSTALLATION.........................56
PASSENGER SEAT SWITCH
DESCRIPTION.........................56
OPERATION...........................56
DIAGNOSIS AND TESTING - PASSENGER
SEAT SWITCH........................57
REMOVAL.............................57
INSTALLATION.........................57
DRIVER POWER SEAT TRACK
DESCRIPTION.........................58
OPERATION...........................58
DIAGNOSIS AND TESTING - DRIVER POWER
SEAT TRACK.........................58
REMOVAL.............................59
INSTALLATION.........................59
PASSENGER POWER SEAT TRACK
DESCRIPTION.........................59
OPERATION...........................60
DIAGNOSIS AND TESTING - POWER SEAT
TRACK.............................60
REMOVAL.............................61
INSTALLATION.........................61
POWER SEAT SYSTEM
DESCRIPTION
DESCRIPTION
The power seat system option allows the driver
and front seat passenger to electrically adjust their
seating positions for optimum control and comfort
using the power seat switches located on the out-
board seat cushion side shield of each front seat. The
driver side power front seat can be adjusted in eight
different directions: up, down, front up, front down,
rear up, rear down, forward, rearward and recliner
forward and rearward. The passenger side power
front seat can be adjusted in four different directions:
forward, rearward and recliner forward and rear-
ward.
The power seat system receives battery current
through a 40 amp fuse in the Intelligent Power Mod-
ule and a 30 amp circuit breaker under the seat so
that the power seats remain operational, regardless
of the ignition switch position.WARNING: SOME VEHICLES ARE EQUIPPED WITH
SEATBACK MOUNTED AIRBAGS (Fig. 1). BEFORE
ATTEMPTING TO DIAGNOSE OR SERVICE ANY
SEAT OR POWER SEAT SYSTEM COMPONENT
YOU MUST FIRST DISCONNECT AND ISOLATE THE
BATTERY NEGATIVE CABLE. THEN WAIT TWO MIN-
UTES FOR THE SYSTEM CAPACITOR TO DIS-
CHARGE BEFORE FURTHER SYSTEM SERVICE.
THIS IS THE ONLY SURE WAY TO DISABLE THE
AIRBAG SYSTEM. FAILURE TO DO SO COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
A eight-way driver side power seat is standard on
highline models and optional on others. This option
includes a six-way adjustable seat cushion track and
a two-way power seat back.
The eight-way driver side power seat is also avail-
able with the heated seat and/or memory seat system
that automatically positions the power seat for two
different drivers. Refer toHeated Seatsfor more
information on the heated seat option. Refer to
Description - Memory Systemin this section for
more information on the memory seat system.
8N - 50 POWER SEAT SYSTEMRS
ProCarManuals.com
The power seat system includes the following com-
ponents:
²Power seat recliners
²Power seat switches
²Power seat tracks
²Circuit breaker
The power seat system with memory and heated
seat options includes the following components:
²Power seat recliner
²Power seat switch
²Power seat track.
²Memory Seat Mirror Module (MSMM)
²Memory set switch
²Heated Seat Module (HSM)
²Heated seat switch
²Electronic Vehicle Information Center (EVIC)
²Programmable Communications Interface (PCI)
data bus network
Refer to Wiring Diagrams for complete circuit dia-
grams. Following are general descriptions and opera-
tions for the major components in the power seat
system and memory seat system.
DESCRIPTION - MEMORY SYSTEM
An electronic memory system is available on some
models. The memory system is able to store and
recall the driver side power seat positions (including
the power recliner position) and both outside side
view mirrors positions for two drivers. On vehicles
equipped with a factory radio, the memory system is
also able to store and recall radio station presets fortwo drivers. The memory system also will store and
recall the last station listened to for each driver, even
if it is not one of the preset stations.
The memory system will automatically return to
its preset settings when the corresponding numbered
button of the memory switch is depressed, or when
the doors are unlocked using the corresponding
Remote Keyless Entry (RKE) transmitter. A customer
programmable feature of the memory system allows
the RKE recall of memory features to be disabled, if
desired. This programmable feature is internal in the
EVIC module, which is located in the overhead con-
sole.
A Memory Seat Mirror Module (MSMM) is used on
some models to control and integrate the many elec-
tronic functions and features included in the memory
seat and mirror systems.
The memory system includes the following compo-
nents:
²Memory Seat Mirror Module (MSMM)
²Memory set switch
²Position potentiometers on both outside side
view mirrors
²Position potentiometers on the driver side power
seat track and power seat recliner motors.
²Electronic Vehicle Information Center (EVIC)
²Radio receiver (if PCI data bus capable).
Certain functions of the memory system rely upon
resources shared with other electronic modules in the
vehicle over the Programmable Communications
Interface (PCI) J1850 data bus network. The PCI
data bus network allows the sharing of sensor infor-
mation. This helps to reduce wire harness complexity,
internal controller hardware, and component sensor
current loads. At the same time, this system provides
increased reliability, enhanced diagnostics, and
allows the addition of many new feature capabilities.
Initial diagnosis of these electronic modules or the
PCI data bus network requires the use of a DRBIIIt
scan tool and the proper Diagnostic Procedures man-
ual. If this method does not prove conclusive, the use
of a automotive meter such as the Fluket, the proper
wiring schematics and the service manual diagnostic
routines are required.
The other electronic modules that may affect mem-
ory system operation are as follows:
²Body Control Module (BCM)- Refer toBody
Control Modulein Electronic Control Modules for
more information.
²Powertrain Control Module (PCM)- Refer to
Powertrain Control Modulein Electronic Control
Modules for more information.
²Transmission Control Module (TCM)- Refer
toTransmission Control Modulein Electronic
Control Modules for more information.
Fig. 1 Identifying a Side Airbag Equipped Seat
1 - Airbag Label
RSPOWER SEAT SYSTEM8N-51
POWER SEAT SYSTEM (Continued)
ProCarManuals.com
WARNING: SOME VEHICLES ARE EQUIPPED WITH
SEATBACK MOUNTED AIRBAGS. BEFORE
ATTEMPTING TO DIAGNOSE OR SERVICE ANY
SEAT OR POWER SEAT SYSTEM COMPONENT
YOU MUST FIRST DISCONNECT AND ISOLATE THE
BATTERY NEGATIVE CABLE. THEN WAIT TWO MIN-
UTES FOR THE SYSTEM CAPACITOR TO DIS-
CHARGE BEFORE FURTHER SYSTEM SERVICE.
THIS IS THE ONLY SURE WAY TO DISABLE THE
AIRBAG SYSTEM. FAILURE TO DO SO COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
(1) If the vehicle is equipped with the memory sys-
tem and the driver side power seat exhibits a inter-
rupted or jerky motion, there is a possibility that the
wires leading from the memory seat module to the
memory seat motor are mis-wired. To check the con-
cern, obtain a DRBIIItscan tool and energize each
axis one at a time. If any axis stops in approximately
2 seconds (without hitting the end of travel), the
feedback for that axis may have an open, short or be
mis-wired. Check the wiring to that axis (module to
motor). Fix any wiring problems and retry that axis.
(2) If any power seat is not operational in any
direction, check the power seat circuit breaker,
located under the trailing edge of the driver side
power seat. Refer to the Power Distribution section of
this service manual for the circuit breaker diagnosis
and testing procedure.
(3) If the power seat circuit breaker is OK, check
for proper battery and ground connections at the
power seat switch and/or memory seat module. Fix
any wiring problems and retry.
(4) Check the power seat system wire harness con-
nections and pins to ensure proper circuit continuity
and ground paths. For complete circuit diagrams,
refer toWiring Diagrams.
(5) With the dome lamp on, apply the power seat
switch in the direction of the failure. If the dome
lamp dims, the seat may be jamming. Check under
and behind the seat for binding or obstructions. If
the dome lamp does not dim, proceed with testing of
the individual components and circuits in the power
seat system.
DIAGNOSIS AND TESTING - MEMORY SYSTEM
In order to obtain conclusive testing of the memory
system, the Programmable Communications Interface
(PCI) data bus network and all of the electronic mod-
ules that provide inputs to, or receive outputs from
the memory system components must be checked.
The most reliable, efficient, and accurate means to
diagnose the memory system requires the use of a
DRB IIItscan tool and the proper Diagnostic Proce-
dures manual. The DRB IIItscan tool can provideconfirmation that the PCI data bus is functional, that
all of the electronic modules are sending and receiv-
ing the proper messages on the PCI data bus, and
that the memory system is receiving the proper hard
wired inputs and relaying the proper hard wired out-
puts to perform its functions.
(1) If the driver power seat exhibits a interrupted
or jerky motion, there is a possibility that the wires
leading from the memory seat module to the memory
seat motor are mis-wired. To check the concern,
obtain a DRB IIItscan tool and energize each axis
one at a time. If any axis stops in approximately 2
seconds (without hitting the end of travel), the feed-
back for that axis may have an open, short or be mis-
wired. Check the wiring to that axis (module to
motor). Fix any wiring problems and retry that axis.
Refer to Wiring Diagrams for complete circuit sche-
matic or connector pin-out information.
DRIVER SEAT SWITCH
DESCRIPTION
Vehicles equipped with a driver side power seat
utilize an eight-way power seat switch. This eight-
way power seat switch features two knobs ganged
together on the outboard seat cushion side shield
(Fig. 2).
The switch is secured to the back of the seat cush-
ion side shield with two screws. However, the control
Fig. 2 Power Seat Switch Location
1 - Power Seat Switch
2 - Seat Cushion Side Shield
RSPOWER SEAT SYSTEM8N-53
POWER SEAT SYSTEM (Continued)
ProCarManuals.com