park CHRYSLER VOYAGER 2004 Service Manual

Page 639 of 2585

DOOR LOCK INHIBIT
When the key is in the ignition (in any switch posi-
tion) and either front door is opened, the door lock
switches LOCK functions are disabled. The
UN-LOCK functions are still functional. This protects
against locking the vehicle with the key still in the
ignition. The RKE key fob will still lock the doors.
After the key is removed from the ignition or the
doors are closed, the power door locks will operate
normally.
REMOTE KEYLESS ENTRY
The Remote Keyless Entry (RKE) system allows
the use of a remote battery-powered radio transmit-
ter to communicate with the BCM to actuate the
power lock system. The RKE transmitters are also equipped with a
Panic button. If the Panic button on the RKE trans-
mitter is depressed, the horn will sound and the
exterior lights will flash on the vehicle for about
three minutes, or until the Panic button is depressed
a second time. Pressing the Panic button also acti-
vates the courtesy lamps. Pressing the Panic button
again stops the exterior lamps from flashing and the
horn from sounding. However, the courtesy lamps
will remain illuminated until either the BCM times
out lamp operation or until the turning of the igni-
tion. The panic feature will operate if the ignition is
ON, but only if the Panic button is pressed prior to
starting the vehicle. A vehicle speed of about 25.7
km/h (15 miles-per-hour) will also cancel the panic
event. The RKE system can also perform other functions
on this vehicle. If the vehicle is equipped with the
optional Vehicle Theft Security System (VTSS), the
RKE transmitter will arm the VTSS when the Lock
button is depressed, and disarm the VTSS when the
Unlock button is depressed. The RKE system includes two transmitters when
the vehicle is shipped from the factory, but the sys-
tem can retain the vehicle access codes of up to a
total of eight transmitters. If an RKE transmitter is
inoperative or lost, new transmitter vehicle access
codes can be programmed into the system using a
DRB III tscan tool.
This vehicle also offers several customer program-
mable features, which allows the selection of several
optional electronic features to suit individual prefer-
ences. Customer programmable feature options
affecting the RKE system include: ² Automatic Door Lock - Customer programma-
ble feature that allows the BCM to perform an auto-
matic door lock if the vehicle speed is above 25.7
km/h (15 miles-per-hour). ² Automatic Door Unlock On Exit - Customer
programmable feature that allows the BCM to per- form an automatic door unlock if the vehicle speed is
0, vehicle in park and driver door is opened.
² Flash Lights with Lock and Unlock - Allows
the option of having the park lamps flash as an opti-
cal verification that the RKE system received a valid
Lock request or Unlock request from the RKE trans-
mitter, or having no optical verification. ² Programming Additional Transmitters -
Allows up to a total of four transmitter vehicle access
codes to be stored. ² Remote Unlock Sequence - Allows the option
of having only the driver side front door unlock when
the RKE transmitter Unlock button is depressed the
first time. The remaining doors unlock when the but-
ton is depressed a second time within 5 seconds of
the first unlock press. Another option is having all
doors unlock upon the first depression of the RKE
transmitter Unlock button. ² Sound Horn on Lock - Allows the option of
having the horn sound a short chirp as an audible
verification that the RKE system received a valid
Lock request from the RKE transmitter, or having no
audible verification.
OPERATION
POWER LOCKS
The Body Control Module (BCM) locks or unlocks
the doors when an actuation input signal from a door
lock switch, Central Lock key cylinder or Remote
Keyless Entry (RKE) is received. The BCM turns on
the output drivers and provides a voltage level to the
door lock motor for a specified time.
REMOTE KEYLESS ENTRY
The RKE transmitter uses radio frequency signals
to communicate with the SKREEM module. The
SKREEM is on the PCI bus. When the operator
presses a button on the transmitter, it sends a spe-
cific request to the SKREEM. In turn, the SKREEM
sends the appropriate request over the PCI bus to
the following: ² Integrated Power Module (IPM) - to activate
the park lamps, the headlamps and the horn for the
horn chirp. ² Power Liftgate Module (PLGM) - to control
the liftgate lock and unlock functions. After pressing the lock button on the RKE trans-
mitter, all of the door locks will lock, the illuminated
entry will turn off (if all doors are closed) and the
vehicle theft security system (if equipped) will arm. Pressing the unlock button one time will unlock
the driver door, or all doors based on the customer
programmable feature enabled, the illuminated entry
will turn on the courtesy lamps and the vehicle theft
security system (if equipped) will disarm. Pressing
8Ns - 2 POWER LOCKSRS
POWER LOCKS (Continued)

Page 664 of 2585

OPERATION
The passenger airbag is equipped with two infla-
tors, each with three levels of pressure output. The
inflators seal the hole in the airbag cushion so it can
discharge the gas it produces directly into the cush-
ion when supplied with the proper electrical signal.
Following an airbag deployment, the airbag cushion
quickly deflates by venting this gas through the
cushion material towards the instrument panel.
The passenger airbag is secured with screws to the
instrument panel beneath the instrument panel top
pad and above the glove box opening. The instrument
panel top pad above the glove box opening conceals
the airbag door and a predetermined hinge line
beneath its decorative cover. Upon airbag deploy-
ment, the top pad will bend at the hinge line and the
door will fold back out of the way onto the top of the
instrument panel.
When the front airbag system is deployed, the fol-
lowingMUSTbe replaced:
²Complete Steering Column Assembly.
²Lower Steering Column Coupler.
²Steering Wheel.
²Clock Spring.
²Driver Airbag.
²Passenger Airbag.
²Upper Instrument Panel with Pad.
CARE OF UNDEPLOYED AIRBAGS
Airbags must be stored in their original special
container until used for service. At no time should a
source of electricity be permitted near the inflator on
the back of an airbag. When carrying or handling an
undeployed airbag, the trim side of the airbag should
be pointing away from the body to minimize possibil-
ity of injury if accidental deployment occurs. Do not
place undeployed airbag face down on a solid surface,
the airbag will propel into the air if accidental
deployment occurs.
REMOVAL
DEPLOYED AIRBAG
(1) Clean powder residue from interior of vehicle
(Refer to 8 - ELECTRICAL/RESTRAINTS - STAN-
DARD PROCEDURE - SERVICE AFTER AN AIR-
BAG DEPLOYMENT).
(2) Remove instrument panel (Refer to 23 - BODY/
INSTRUMENT PANEL/INSTRUMENT PANEL
ASSEMBLY - REMOVAL).
(3) Remove all reusable components from the
upper instrument panel and transfer to the new
instrument panel.
UNDEPLOYED AIRBAG
(1) Open hood.
(2) Disconnect and isolate the battery negative
cable.
(3) Wait two minutes for the airbag system reserve
capacitor to discharge before attempting any airbag
or instrument panel service.
(4) Remove center console bin between front seats.
(5) Remove left front door sill plate using a trim
stick (special tool #C-4755) or equivalent, and gently
prying up on sill plate.
(6) Remove left cowl panel using a trim stick or
equivalent, and gently prying out on cowl panel.
(7) Remove four screws to lower steering column
cover and remove cover.
(8) Unsnap parking brake lever from knee blocker
reinforcement.
(9) Remove Data Link Connector (DLC) from knee
blocker.
(10) Remove screws to knee blocker.
(11) Unsnap left A-pillar lower extension trim
using a trim stick or equivalent.
(12) Remove three left side instrument panel A-pil-
lar retaining bolts and loosen the instrument panel
roll down bolt.
(13) Remove four nuts at brake pedal support
bracket to instrument panel.
(14) Using a trim stick or equivalent, gently pry
off left side upper A-pillar trim.
(15) Remove six screws and two wiring connectors
to lower instrument panel cubby bin at bottom of
center stack.
(16) Remove two left side nuts at instrument panel
center stack support to floor.
(17) Remove two right side nuts at instrument
panel center stack support to floor.
(18) Remove right front door sill plate using a trim
stick or equivalent, and gently prying up on sill
plate.
(19) Remove right cowl panel using a trim stick or
equivalent, and gently prying out on cowl panel.
(20) Using a trim stick or equivalent, gently pry
out on right instrument panel end cap.
(21) Unsnap right A-pillar lower extension trim
using a trim stick or equivalent.
(22) Remove three right side instrument panel
A-pillar retaining bolts and loosen the instrument
panel roll down bolt.
(23) Using a trim stick or equivalent, gently pry
off right side upper A-pillar trim.
(24) Open glove box, pinch in sides and roll down
towards floor. With a firm pull, snap glove box door
off hinges and remove.
(25) Using a trim stick or equivalent, gently pry
up on rear of instrument panel top cover and then
pull rearward and out.
RSRESTRAINTS8O-9
PASSENGER AIRBAG (Continued)

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(13) Install wiring connectors to radio. Install
radio and four retaining screws.
(14) Connect glove box lamp wiring connector and
place right lower instrument panel trim (glove box
surround) into position.
(15) Install nineteen right lower instrument panel
trim (glove box surround) and install panel screws.
(16) Slide cup holder assembly into instrument
panel.
(17) Install center bezel wiring connectors to
HVAC control and switch assembly (hazard, rear
wiper/washer, heated seats).
(18) Install instrument panel center bezel by align-
ing slots and firmly snapping into place.
(19) Install two screws to instrument panel center
bezel.
(20) Align filler bezel above cup holder over retain-
ing slots and firmly snap into place.
(21) Place instrument panel top cover into position
and firmly snap down rear edge of top cover.
(22) Install glove box. Align hinges, snap into
place, roll glove box upwards and push in sides to
fully install.
(23) Align right side upper A-pillar trim over
retaining slots and firmly snap into place.
(24) Align right A-pillar lower extension trim over
retaining slots and firmly snap into place.
(25) Align right instrument panel end cap over
retaining slots and firmly snap into place.
(26) Align right cowl panel over retaining slots and
firmly snap into place.
(27) Align right front door sill plate over retaining
slots and firmly snap into place.
(28) Install two right side nuts at instrument
panel center stack support to floor.
(29) Install two left side nuts at instrument panel
center stack support to floor.
(30) Connect the two wiring connectors to lower
instrument panel cubby bin at bottom of center stack
and install six screws.
(31) Align left side upper A-pillar trim over retain-
ing slots and firmly snap into place.
(32) Install four nuts at brake pedal support
bracket to instrument panel.
(33) Align left A-pillar lower extension trim over
retaining slots and firmly snap into place.
(34) Install knee blocker and retaining screws.
(35) Install Data Link Connector (DLC) into bot-
tom of knee blocker.
(36) Align parking brake lever and snap into place
on knee blocker reinforcement.
(37) Install lower steering column cover and four
retaining screws
(38) Align left cowl panel over retaining slots and
firmly snap into place.(39) Align left front door sill plate over retaining
slots and firmly snap into place.
(40) Install center console bin between front seats.
WARNING: DO NOT CONNECT THE BATTERY NEG-
ATIVE CABLE (Refer to 8 - ELECTRICAL/RE-
STRAINTS - DIAGNOSIS AND TESTING).
PERSONAL INJURY OR DEATH MAY RESULT IF
THE SYSTEM TEST IS NOT PERFORMED PROP-
ERLY.
(41) Close hood.
(42) Verify system and vehicle operation.
SEAT AIRBAG
DESCRIPTION
The side impact airbag system Seat Airbags are
located in the outboard side of the front seat backs.
One in each front seat. The seat airbag inflator
assembly is within the airbag housing (Fig. 5). Each
airbag is mounted to the seat back frame. If deployed
or defective, the entire seat back assembly must be
replaced.
OPERATION
Only the Side Impact Airbag Control Module
(SIACM) can deploy the side airbags. When supplied
with the proper electrical signal, the seat airbag
inflator will produce a gas and discharge the bag
directly between the occupant and the side of the
vehicle, protecting the occupant. Upon deployment,
Fig. 5 SEAT AIRBAG - TYPICAL
RSRESTRAINTS8O-11
PASSENGER AIRBAG (Continued)

Page 674 of 2585

SPEED CONTROL
TABLE OF CONTENTS
page page
SPEED CONTROL
DESCRIPTION..........................1
OPERATION
OPERATION..........................1
OPERATION - INTERACTIVE SPEED
CONTROL (4 Speed EATX Only)...........2
DIAGNOSIS AND TESTING - ROAD TEST.....3
SPECIFICATIONS - TORQUE...............3
CABLE
DESCRIPTION..........................4
OPERATION............................4
REMOVAL.............................4
INSTALLATION..........................4
SERVO
DESCRIPTION..........................4OPERATION............................4
REMOVAL.............................5
INSTALLATION..........................5
SWITCH
DESCRIPTION..........................6
OPERATION............................6
REMOVAL.............................6
INSTALLATION..........................6
VACUUM RESERVOIR
DESCRIPTION..........................6
OPERATION............................6
REMOVAL.............................6
INSTALLATION..........................6
SPEED CONTROL
DESCRIPTION
The speed control system is electronically con-
trolled and vacuum operated. The electronic control
is integrated into the Powertrain Control Module.
The controls are located on the steering wheel. The
ON/OFF, and SET buttons are located on the left side
of the airbag module. The RESUME/ACCEL, CAN-
CEL and COAST buttons are located on the right
side of the airbag module (Fig. 1).The system is designed to operate at speeds above
30 mph (48 km/h).
WARNING: THE USE OF SPEED CONTROL IS NOT
RECOMMENDED WHEN DRIVING CONDITIONS DO
NOT PERMIT MAINTAINING A CONSTANT SPEED,
SUCH AS IN HEAVY TRAFFIC OR ON ROADS THAT
ARE WINDING, ICY, SNOW COVERED, OR SLIP-
PERY.
OPERATION
OPERATION
When speed control is activated by depressing the
ON switch, the PCM allows a set speed to be stored
in RAM for speed control. To store a set speed,
depress and release the SET switch while the vehicle
is moving at a speed between 30 and 85 mph. In
order for the speed control to engage, the brakes can-
not be applied, nor can the gear selector be indicat-
ing the transmission is in Park or Neutral (ATX) or
1st/2nd gear (MTX). The speed control can be disen-
gaged manually by:
²Stepping on the brake pedal
²Depressing the OFF switch
²Depressing the CANCEL switch.
²Depressing the clutch pedal
²Operating in 1st or 2nd gear (autostick, if
equipped)
Fig. 1 SPEED CONTROL SWITCHES - Typical
RSSPEED CONTROL8P-1

Page 675 of 2585

NOTE: Turning the system off by depressing the
OFF switch or turning off the ignition switch will
erase the set speed stored in the PCM.
For added safety, the speed control system is pro-
grammed to disengage for any of the following condi-
tions:
²An indication of Park or Neutral
²A rapid increase rpm (indicates that the clutch
has been disengaged)
²Excessive engine rpm (indicates that the trans-
mission may be in a low gear)
²The speed signal increases at a rate of 10 mph
per second (indicates that the co-efficient of friction
between the road surface and tires is extremely low)
²The speed signal decreases at a rate of 10 mph
per second (indicates that the vehicle may have
decelerated at an extremely high rate)
²If the actual speed is greater than 20 mph over
the set speed.
²Autostick shifts into 1st or 2nd gear (autostick,
if equipped)
Once the speed control has been disengaged,
depressing the RESUME switch when speed is
greater than 20 mph allows the vehicle to resume
control to the target speed that was stored in the
PCM.
While the speed control is engaged, the driver can
increase the vehicle speed by depressing the ACCEL
switch. The new target speed is stored in the PCM
when the ACCEL switch is released. The PCM also
has a9tap-up9feature in which target speed
increases by 2 mph for each momentary switch acti-
vation of the ACCEL switch. The PCM also provides
a means to decelerate to a new lower target speed
without disengaging speed control. Depress and hold
the COAST switch until the desired speed is reached,
then release the switch.
The PCM also has a ªTap Downº feature in which
target speed decreases at 1 mph for each momentary
switch activation of the coast switch.
OPERATION - INTERACTIVE SPEED CONTROL
(4 Speed EATX Only)
Interactive means that communication between the
PCM and the TCM is taking place, this communica-
tion is internal to the PCM on NGC vehicles. Inter-
active speed control avoids unnecessary shifting for
smoother, quieter operation and when downshifts are
required, makes the shifts smoother.
CLIMBING A GRADE
DESCRIPTION
When climbing a grade the interactive speed con-
trol tries to maintain the set speed by increasing the
throttle opening, while inhibiting/delaying down-
shifts.
OPERATION
If opening the throttle alone cannot maintain the
set speed and the vehicle speed drops more than
three mph below the set speed, the transmission will
downshift to third gear. If the vehicle continues to
lose speed, by more than 6 mph, the transmission
will downshift again to maintain the set speed. After
the vehicle encounters a less-steep grade, or has
crested the grade (reduced the load on the power-
train) and can maintain the set speed at a reduced
throttle position, the transmission will upshift, as
appropriate, until the set speed can be maintained in
Overdrive.
GRADE HUNTING
DESCRIPTION
All vehicles equipped with a four speed automatic
transmission have a grade hunting feature for the
2nd to 3rd gear upshift and the 3rd to Overdrive
upshift.
OPERATION
The TCM (on SBEC vehicles) (PCM on NGC vehi-
cles) identifies the powertrain loading conditions and
selects the proper gear to maintain the current vehi-
cle speed. Under moderate loading conditions the
transaxle will stay in 3rd gear until the top of the
grade is reached or the powertrain loading is
reduced.
If powertrain loading is severe, the transaxle may
shift into 2nd gear and remain there until power-
train loading is reduced, then a 2nd to 3rd gear
upshift will be scheduled. Grade hunting features
always operate regardless of whether or not the
interactive speed control is engaged.If the interac-
tive speed control is not engaged and power-
train loading is not reduced, the driver may
have to completely lift off of the throttle before
an upshift will occur. If the driver does lift off the
throttle to induce an upshift under these conditions,
vehicle speed will reduce and the Overdrive to 3rd
and 3rd to 2nd gear downshifts will reoccur when the
throttle is reapplied. If grade hunting is repeatedly
induced by the driver, transaxle damage may result.
8P - 2 SPEED CONTROLRS
SPEED CONTROL (Continued)

Page 680 of 2585

VEHICLE THEFT SECURITY
TABLE OF CONTENTS
page page
VEHICLE THEFT SECURITY
DESCRIPTION..........................1
OPERATION............................1
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - SENTRY KEY
REMOTE ENTRY SYSTEM...............3
DIAGNOSIS AND TESTING - VEHICLE
THEFT SECURITY SYSTEM..............3
HOOD AJAR SWITCH - EXPORT
REMOVAL.............................3
INSTALLATION..........................3
SENTRY KEY REMOTE ENTRY MODULE
DESCRIPTION..........................3OPERATION............................4
DIAGNOSIS AND TESTING - SENTRY KEY
REMOTE ENTRY MODULE...............5
REMOVAL.............................5
INSTALLATION..........................6
TRANSPONDER KEY
DESCRIPTION..........................6
OPERATION............................6
STANDARD PROCEDURE - TRANSPONDER
PROGRAMMING.......................6
VTSS/SKIS INDICATOR LAMP
DESCRIPTION..........................7
OPERATION............................8
VEHICLE THEFT SECURITY
DESCRIPTION
VEHICLE THEFT SECURITY SYSTEM
The Vehicle Theft Security System (VTSS) is
designed to protect against whole vehicle theft. The
system monitors vehicle doors, and ignition action for
unauthorized operation (hood and liftgate for RG -
Export). The alarm activates:
²Sounding of the horn
²Flashing of the headlamps/park/tail lamps
²Flashing of the headlamps
²An engine kill feature (with SKREES)
SENTRY KEY REMOTE ENTRY SYSTEM
The Sentry Key Remote Entry System (SKREES)
is available as a factory-installed option on this vehi-
cle. It is designed to provide passive protection
against unauthorized vehicle use by disabling the
engine, after two (2) seconds of running, whenever an
invalid key is used to start the vehicle. The SKIS is
active whenever the ignition is on and does not
require any customer intervention. The primary com-
ponents of the system are the Sentry Key Remote
Entry Module (SKREEM), Sentry Key (ignition key
with a transponder molded into the head), indicator
light, Body Control Module (BCM), and the Power-
train Control Module (PCM). The SKREEM is
mounted to the steering column with the molded,
integral antenna mounted on the ignition housing.
The indicator light, is located in the Mechanical
Instrument Cluster (MIC).
OPERATION
VEHICLE THEFT SECURITY SYSTEM
Upon failure of proper Sentry Key Remote Entry
Module (SKREEM) communication to the PCM, the
PCM will shut off fuel after two seconds of run time.
The engine will not re-crank on the key cycle that
the failure occurred, a full key down sequence must
be performed for the engine to crank again. After six
consecutive fuel shut-offs, the engine will no longer
crank on subsequent key cycles. The failure must be
corrected and a valid communication process between
the SKREEM and the PCM must occur for the
engine to crank and start again.
The electronics for the VTSS are part of the Body
Control Module (BCM). The system is armed when
the vehicle is locked using the:
²Power door lock switches (with any door ajar)
²Remote Keyless Entry transmitter.
²Door Cylinder Lock Switches (RG only).
For vehicles equipped with Sentry Key Remote
Entry System (SKREES), the doors do not have to be
locked to enable the fuel shut off feature.
After the vehicle is locked and the last door is
closed, the set LED indicator in the Mechanical
Instrument Cluster (MIC) will flash quickly for 16
seconds, indicating that arming is in progress. If no
monitored systems are activated during this period,
the system will arm. The LED will extinguish unless
the liftgate is open. If the liftgate is open, the LED
will flash at a slower rate. This indicates that the
system is armed.
RG Only- If fault is detected on the driver key
cylinder input, the indicator LED will remain solid
RSVEHICLE THEFT SECURITY8Q-1

Page 683 of 2585

message must be sent to the Powertrain Control
Module (PCM) within two seconds of ignition ON to
free the engine from immobilization.
The SKREEM contains a Radio Frequency (RF)
transceiver and a microprocessor. The SKREEM
retains in memory the ID numbers of any Sentry Key
that is programmed to it. The maximum number of
keys that may be programmed to each module is
eight (8). The SKREEM also communicates over the
Programmable Communication Interface (PCI) data
bus with the Powertrain Control Module (PCM), the
Body Control Module (BCM), the Mechanical Instru-
ment Cluster (MIC), and the DRB IIItscan tool. The
SKREEM transmits and receives RF signals through
a tuned antenna enclosed within a molded plastic
ring formation that is integral to the SKREEM hous-
ing. When the SKREEM is properly installed on the
steering column, the antenna ring fits snugly around
the circumference of the ignition lock cylinder hous-
ing. If this ring is not mounted properly, communica-
tion problems may arise in the form of transponder-
related faults.
For added system security, each SKREEM is pro-
grammed with a unique9Secret Key9code. This code
is stored in memory and is sent over the PCI bus to
the PCM and to each key that is programmed to
work with the vehicle. The9Secret Key9code is there-
fore a common element found in all components of
the Sentry Key Immobilizer System (SKIS). In the
event that a SKREEM replacement is required, the
9Secret Key9code can be restored from the PCM by
following the SKIM replacement procedure found in
the DRB IIItscan tool. Proper completion of this
task will allow the existing ignition keys to be repro-
grammed. Therefore, new keys will NOT be needed.
In the event that the original9Secret Key9code can
not be recovered, new ignition keys will be required.
The DRB IIItscan tool will alert the technician if
key replacement is necessary. Another security code,
called a PIN, is used to gain secured access to the
SKREEM for service. The SKREEM also stores in its
memory the Vehicle Identification Number (VIN),
which it learns through a bus message from the
assembly plant tester. The SKIS scrambles the infor-
mation that is communicated between its components
in order to reduce the possibility of unauthorized
SKREEM access and/or disabling.
REMOTE KEYLESS ENTRY (RKE)
The RKE transmitter uses radio frequency signals
to communicate with the SKREEM. The SKREEM is
on the PCI bus. When the operator presses a button
on the transmitter, it sends a specific request to the
SKREEM. In turn the SKREEM sends the appropri-
ate request over the PCI Bus to the:²Body Control Module (BCM) to control the door
lock and unlock functions, the liftgate lock and
unlock functions, the arming and disarming of the
Vehicle Theft Security System (VTSS) (if equipped),
and the activation of illuminated entry.
²Integrated Power Module (IPM) to activate the
park lamps, the headlamps, and the horn for horn
chirp. If requested, the BCM sends a request over
the PCI Bus to the:
TIRE PRESSURE MONITORING (TPM)
If equipped with the Tire Pressure Monitoring
(TPM) System, each of the vehicles four wheels will
have a valve stem with a pressure sensor and radio
transmitter built in. Signals from the tire pressure
sensor/transmitter are received and interpreted by
the SKREEM.
A sensor/transmitter in a mounted wheel will
broadcast its detected pressure once per minute
when the vehicle is moving faster than 15 mph (24
km/h). Each sensor/transmitter's broadcast is
uniquely coded so that the SKREEM can determine
the location.
OPERATION
SENTRY KEY IMMOBILIZER
The Sentry Key Remote Entry Module (SKREEM)
receives an encrypted Radio Frequency (RF) signal
from the transponder key. The SKREEM then
decrypts the signal and broadcasts the requested
remote commands to the appropriate modules in the
vehicle over the Programmable Communication
Interface (PCI) data bus. A valid transponder key ID
must be incorporated into the RF signal in order for
the SKREEM to pass the message on to the appro-
priate modules.
Automatic transponder key synchronization is done
by the SKREEM if a valid transponder key is
inserted into the ignition cylinder, and the ignition is
turned ON. This provides a maximum operation win-
dow for RKE functions.
Each Sentry Key Remote Entry System (SKREES)
consists of a SKREEM and a transponder key. Each
system has a secret key code unique to that system.
The secret key is electronically coded in the
SKREEM and in all programmed transponder keys.
It is used for immobilization and RKE functions for
data security. In addition, each transponder key will
have a unique identification.
When the ignition switch is moved to the RUN
position, the SKREEM transmits an Radio Frequency
(RF) signal to the transponder in the ignition key.
The SKREEM then waits for a response RF signal
from the transponder in the key. If the response
received identifies the key as valid, the SKREEM
8Q - 4 VEHICLE THEFT SECURITYRS
SENTRY KEY REMOTE ENTRY MODULE (Continued)

Page 684 of 2585

sends a9valid key9message to the Powertrain Con-
trol Module (PCM) over the Programmable Commu-
nication Interface (PCI) data bus. If the response
received identifies the key as invalid or no response
is received from the transponder in the ignition key,
the SKREEM sends an9invalid key9message to the
PCM. The PCM will enable or disable engine opera-
tion based upon the status of the SKREEM mes-
sages. It is important to note that the default
condition in the PCM is9invalid key.9Therefore, if no
response is received by the PCM, the engine will be
immobilized after two (2) seconds of running.
The SKREEM also sends indicator light status
messages to the Mechanical Instrument Cluster
(MIC) to operate the light. This is the method used to
turn the light ON solid or to flash it after the indi-
cator light test is complete to signify a fault in the
SKREES. If the light comes ON and stays ON solid
after the indicator light test, this signifies that the
SKREEM has detected a system malfunction and/or
that the SKREES has become inoperative. If the
SKREEM detects an invalid keyORa key-related
fault exists, the indicator light will flash following
the indicator light test. The SKREEM may also
request an audible chime if the customer key pro-
gramming feature is available and the procedure is
being utilized (Refer to 8 - ELECTRICAL/VEHICLE
THEFT SECURITY/TRANSPONDER KEY - STAN-
DARD PROCEDURE).
REMOTE KEYLESS ENTRY (RKE)
After pressing the lock button on the RKE trans-
mitter, all of the door locks will lock, the illuminated
entry will turn off (providing all doors are closed),
and the VTSS (if equipped) will arm. After pressing
the unlock button, on the RKE transmitter, one time,
the driver door lock will unlock, the illuminated
entry will turn on the courtesy lamps, and the VTSS
(if equipped) will disarm. After pressing the unlock
button a second time, the remaining door locks will
unlock. The Electronic Vehicle Information Center
(EVIC) or the DRBIIItscan tool can reprogram this
feature to unlock all of the door locks with one press
of the unlock button. If the vehicle is equipped with
the memory system, the memory message will iden-
tify which transmitter (1 or 2) sent the signal.
The SKREEM is capable of retaining up to 8 indi-
vidual access codes (8 transmitters). If the PRNDL is
in any position except park, the SKREEM will dis-
able the RKE. The 4 button transmitter uses
1-CR2032 battery. The minimum battery life is
approximately 4.7 years based on 20 transmissions a
day at 84ÉF (25ÉC). Use the DRBIIItscan tool or the
Miller Tool 9001 RF Detector to test the RKE trans-
mitter. Use the DRBIIItor the customer program-
ming method to program the RKE system. However,the SKREEM will only allow RKE programming
when the ignition is in the ON position, the PRNDL
is in park position, and the VTSS (if equipped) is dis-
armed.
TIRE PRESSURE MONITORING (TPM)
The SKREEM monitors the signals from the tire
pressure sensor/transmitters and determines if any
tire has gone below the low pressure threshold LOW
TIRE PRESSURE THRESHOLDS table.
LOW TIRE PRESSURE THRESHOLDS
SYSTEM STATUS
INDICATORTIRE PRESSURE
ON 193 kPa (28 PSI)
OFF 227 kPa (33 PSI)
CRITICAL AND NON-CRITICAL SYSTEM ALERTS
CRITICAL:A critical alert will be triggered when
a tire pressure has gone below a set threshold pres-
sure. The SKREEM will display ªX TIRE(S) LOW
PRESSUREº. ªXº will be the number of tires report-
ing low pressure. The message will display for the
duration of the current ignition cycle or until an
EVIC button is pressed. If the display is removed
without correcting the condition, it will reappear 300
seconds to warn the driver of the low pressure condi-
tion.
NON-CRITICAL:A non-critical alert will be trig-
gered when no signal is received from a sensor/trans-
mitter. The EVIC display in the cluster will display
ªSERVICE TIRE SYSTEM SOON.º
DIAGNOSIS AND TESTING - SENTRY KEY
REMOTE ENTRY MODULE
For proper diagnosis and testing of the Sentry Key
Remote Entry Module (SKREEM), use a DRBllltand
refer to the proper Body Diagnostic Procedures infor-
mation.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the Steering Column Opening Cover
(Refer to 23 - BODY/INSTRUMENT PANEL/STEER-
ING COLUMN OPENING COVER - REMOVAL).
(3) Remove the steering column upper and lower
shrouds (Refer to 19 - STEERING/COLUMN/UPPER
SHROUD - REMOVAL) and (Refer to 19 - STEER-
ING/COLUMN/LOWER SHROUD - REMOVAL).
(4) Disengage the steering column wire harness
from the Sentry Key Remote Entry Module
(SKREEM).
(5) Remove the one screws securing the SKREEM
to the steering column.
RSVEHICLE THEFT SECURITY8Q-5
SENTRY KEY REMOTE ENTRY MODULE (Continued)

Page 688 of 2585

WIPERS/WASHERS
TABLE OF CONTENTS
page page
WIPERS/WASHERS
DESCRIPTION..........................1
OPERATION............................1
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - FRONT WIPER
SYSTEM.............................2
DIAGNOSIS AND TESTING - FRONT
WIPER/WASHER SWITCH................2
DIAGNOSIS AND TESTING - FAILED PARK
SWITCH.............................2
DIAGNOSIS AND TESTING - REAR WIPER
SYSTEM.............................4
DIAGNOSIS AND TESTING - WASHER
SYSTEM.............................4
FRONT WASHER PUMP MOTOR
REMOVAL.............................8
INSTALLATION..........................8
FRONT WIPER ARMS
STANDARD PROCEDURE - FRONT WIPER
ARM ALIGNMENT......................8
REMOVAL.............................9
INSTALLATION..........................9
FRONT WIPER MOTOR
REMOVAL.............................9
INSTALLATION..........................9
REAR WASHER PUMP MOTOR
REMOVAL.............................10
INSTALLATION.........................10REAR WIPER ARM
REMOVAL.............................10
INSTALLATION.........................10
REAR WIPER MOTOR
REMOVAL.............................11
INSTALLATION.........................11
REAR WIPER/WASHER SWITCH
DESCRIPTION.........................11
OPERATION...........................11
WASHER FLUID LEVEL SWITCH
REMOVAL.............................12
INSTALLATION.........................12
WASHER HOSES
REMOVAL.............................13
INSTALLATION.........................13
WASHER RESERVOIR
REMOVAL.............................13
INSTALLATION.........................13
WIPER BLADES
REMOVAL.............................14
CLEANING............................14
INSTALLATION.........................14
WIPER LINKAGE
REMOVAL.............................14
INSTALLATION.........................14
WIPER MODULE
REMOVAL.............................15
INSTALLATION.........................15
WIPERS/WASHERS
DESCRIPTION
FRONT WIPER/WASHER SYSTEM
The windshield wipers can be operated with the
windshield wiper switch when the ignition switch is
in the RUN or ACCESSORY positions. The wind-
shield wiper system is protected by a 30 amp fuse (9)
located in the Power Distribution Center (PDC) part
of the Integrated Power Module (IPM) in the engine
compartment. The wiper/washer switch is integral to
the multi-function switch. It is a resistive MUX
switch that sends inputs to the BCM to operate the
wiper/washer system.
REAR WIPER/WASHER SYSTEM
The rear windshield wiper and washers can be
operated when the ignition switch is in the RUN
position.
If equipped with Manual Temperature Controls
(MTC), the rear wiper/washer switch is integral to
the HVAC control unit. It replaces what was formerly
the ON/OFF switch. If equipped with Automatic Tem-
perature Controls (ATC), the rear wiper/washer
switch is located on the accessory switch panel in the
center stack of the instrument panel.
OPERATION
FRONT WIPER/WASHER SYSTEM
The windshield washer circuit is protected by a 15
amp Cartridge Fuse located in the IPM. The wiper
motor has permanent magnetic fields. The speeds are
determined by current flow to the appropriate set of
RSWIPERS/WASHERS8R-1

Page 689 of 2585

brushes inside the motor. The current flow is con-
trolled by the multi-function switch. The high speed/
low speed relays are located in the IPM. The speed
sensitive intermittent wiper is controlled by the Body
Control Module (BCM). The intermittent mode, with
the vehicle traveling greater than 10.4 mph, has a
range of 0.5 to 18 seconds. With the vehicle traveling
less than 10.4 mph, the time delay doubles to a
range of 1 to 36 seconds. The wiper arms will park at
the base of the windshield just above the cowl cover
after the wiper switch is turned OFF.
The windshield wiper motor and linkage is located
in an integral wiper unit at the rear of the engine
compartment. The wiper unit must be removed to
gain access to the wiper motor.
REAR WIPER/WASHER SYSTEM
When rear wiper operation is required, the BCM
will provide ignition ON voltage to the rear wiper
motor (Export and ATC equipped vehicles only).
When the wiper switch is turned OFF, the BCM pro-
vides circuit ground to operate the motor until the
wipe cycle is complete and the wiper arm returns to
the base of the rear window.
Switch only offers an intermittent rear wiper
mode. The wiper motor will cycle every 7 seconds.
The intermittent delay time is also adjusted based
upon vehicle speed. With the vehicle traveling
greater than 50 mph, the cycle changes to every 5
seconds.
When rear washer is requested by depressing and
holding down the switch, the BCM then provides a
ground for the rear washer motor. Until the switch is
released, the motor will be in a continuous wipe
mode, then return to an intermittent wipe mode.
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - FRONT WIPER
SYSTEM
The windshield wiper system operates in several
modes:
²Low and high speed normal wipe
²Speed sensitive intermittent wipe
²Wipe after wash
²Park (switch OFF)
The windshield wiper circuits are continuously
monitored and controlled by the Body Control Mod-
ule (BCM). If a problem occurs in the electronic com-
ponents, wiring, switch (except integral motor park
switch) and wiper motor a Diagnostic Trouble Code
(DTC) will be stored in the BCM memory. DTC's can
be retrieved using a DRB IIItscan tool. Refer to the
proper Body Diagnostic Procedures manual for DTC
descriptions and retrieval information.The windshield wiper park switch and circuit is
monitored by the BCM. The park switch and circuit
can be tested using the Wiper System Diagnosis
table.
DIAGNOSIS AND TESTING - FRONT
WIPER/WASHER SWITCH
(1) Remove the multi-function switch (Refer to 8 -
ELECTRICAL/LAMPS/LIGHTING - EXTERIOR/
MULTI-FUNCTION SWITCH - REMOVAL).
(2) Using an ohmmeter check resistance readings
between switch pins. Refer to the WIPER/WASHER
SWITCH RESISTANCE table.
WIPER/WASHER SWITCH RESISTANCE
SWITCH POSITION RESISTANCE BETWEEN
OFF 1 AND 2 = 23.9KV 5%
DELAY POSITION
1ST 1 AND 2 = 7.9KV 5%
2ND 1 AND 2 = 4.6KV 5%
3RD 1 AND 2 = 2.9KV 5%
4TH 1 AND 2 = 1.9KV 5%
5TH 1 AND 2 = 1.3KV 5%
LOW 1 AND 2 = 670V 5%
HIGH 1 AND2=240V 5%
WASH 1 AND 4 = 5.9KV 5%
DIAGNOSIS AND TESTING - FAILED PARK
SWITCH
If the wiper park switch has failed, the windshield
wipers will operate as follows:
²SWITCH OFF- Wipers stop in current location
regardless of the park signal.
²INTERMITTENT MODE- Wipers operate con-
tinuously or at low speed for one or more extra
wipes.
²LOW SPEED- Wipers operate at low speed.
²HIGH SPEED- Wipers operate at high speed.
²WIPE AFTER WASH- Wipers operate at low
speed in any mode setting. Wipers operate only while
the wash button is depressed with switch in the OFF
mode and wipers stop in mid-cycle when button is
released.
The windshield wiper park switch and circuit is
monitored by the BCM. The park switch and circuit
can be tested using the WIPER SYSTEM DIAGNO-
SIS table.
8R - 2 WIPERS/WASHERSRS
WIPERS/WASHERS (Continued)

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