2005 CHRYSLER CARAVAN integrated power module

(Refer to 8 - ELECTRICAL/HEATED SEATS -
DESCRIPTION) for more information on the heated
seat option. (Refer to 8 - ELECTRICAL/POWER
SEATS - DESCRIPTION - MEMORY SEAT SYS-
TEM) for more information on the memory seat sys-
tem.
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)
MEMORY SYSTEM
The memory system is able to store and recall the
driver side power seat positions (including the power
recliner position), power adjustable pedal positions
and the driver outside mirror position for two driv-
ers. On vehicles equipped with a factory radio, the
memory system is also able to store and recall radio
station presets for two 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 sta-
tions.
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
Electronic Vehicle Information Center (EVIC) mod-
ule, which is located in the overhead console.
A Memory Seat Mirror Module (MSMM) is used to
control and integrate the many electronic 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 the driver outside
side view mirror
²Position potentiometers on the power adjustable
pedal motor²Position 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) data bus network. Initial diagnosis of
these electronic modules or the PCI data bus network
requires the use of a DRBIIItor equivalent scan tool
and the proper Diagnostic Procedures information. If
this method does not prove conclusive, the proper
wiring schematics and the service manual diagnostic
information are required.
The other electronic modules that may affect mem-
ory system operation are:
²Body Control Module (BCM)- (Refer to 8 -
ELECTRICAL/ELECTRONIC CONTROL MOD-
ULES/BODY CONTROL/CENTRAL TIMER MODUL
- DESCRIPTION) for additional information.
²Powertrain Control Module (PCM)- (Refer
to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/POWERTRAIN CONTROL MODULE -
DESCRIPTION) for additional information.
²Transmission Control Module (TCM)- (Refer
to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/TRANSMISSION CONTROL MODULE -
DESCRIPTION) for additional information.
(Refer to 8 - ELECTRICAL/HEATED SEATS -
DESCRIPTION) for additional information on the
heated seat system. (Refer to 8 - ELECTRICAL/
POWER LOCKS - DESCRIPTION) for additional
information on the RKE system.
OPERATION
POWER SEAT SYSTEM
The power seat system receives battery current
through fuse #22 in the Integrated Power Module
(IPM) and a circuit breaker under the front seats,
regardless of the ignition switch position.
When a power seat switch control knob or knobs
are actuated, a battery feed and a ground path are
applied through the switch contacts to the appropri-
ate power seat track adjuster motor. The selected
adjuster motor operates to move the seat track
through its drive unit in the selected direction until
the switch is released, or until the travel limit of the
seat track is reached. When the switch is moved in
the opposite direction, the battery feed and ground
path to the motor are reversed through the switch
contacts. This causes the adjuster motor to run in the
opposite direction.
No power seat switch should be held applied in any
direction after the seat track has reached its travel
limit. The power seat adjuster motor each contain a
8N - 32 POWER SEAT SYSTEMRS
POWER SEAT SYSTEM (Continued)

self-resetting circuit breaker to protect them from
overload. However, consecutive or frequent resetting
of the circuit breaker must not be allowed to con-
tinue, or the motor may be damaged.
MEMORY SYSTEM
The Memory Seat Mirror Module (MSMM) receives
battery current through fuse #22 in the Integrated
Power Module (IPM) and the power seat system cir-
cuit breaker, located under the driver side front seat
near the rear edge of the seat cushion pan. The mem-
ory system does not operate with the Ignition-Off
Draw (IOD) fuse removed. The MSMM will drive a
maximum of 2 motors at a time in a given direction.
If conflicting directions are requested, the priority for
response will be approximately as follows:
²Seat Track Rearward or Forward
²Seat Front Down or Up
²Seat Rear Down or Up
²Recliner Rearward or Forward
The inputs from these switches to the MSMM is a
current limited battery source fed by the MSMM.
This protects the MSMM printed circuit board traces
from acting as fuses. All of these switch contact
inputs to the MSMM are normally closed to ground,
except when actuated.
For diagnosis of the MSMM, the Programmable
Communication Interface (PCI) data bus, or the other
electronic modules on the PCI data bus that provide
inputs and outputs for the memory system, the use of
a DRBIIItor equivalent scan tool and the proper
Diagnostic Procedures information is recommended.
ELECTRONIC VEHICLE INFORMATION CENTER
The Electronic Vehicle Information Center (EVIC)
serves as the user interface for the memory system.
It displays memory system status messages and pro-
vides the user with the means for enabling and dis-
abling the many customer programmable features
available on the vehicle, including those for the mem-
ory system.
(Refer to 8 - ELECTRICAL/OVERHEAD CON-
SOLE/ELECTRONIC VEHICLE INFO CENTER -
DESCRIPTION) for additional information on the
EVIC.
DIAGNOSIS AND TESTING
POWER SEAT SYSTEM
Following are tests that will help to diagnose the
hard wired components and circuits of the power seat
system. However, if the vehicle is also equipped with
the optional memory system, these tests may not
prove conclusive in the diagnosis of the driver side
power seat. In order to obtain conclusive testing ofthe driver side power seat with the memory system
option, 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,
(Refer to 8 - ELECTRICAL/POWER SEATS - DIAG-
NOSIS AND TESTING).
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 either power seat is completely inoperable,
check the power seat circuit breaker, located under
the trailing edge of the driver side power seat. If the
power seat circuit breaker is OK, continue to the
next step.
(2) Check for proper battery and ground connec-
tions at the power seat switch and/or memory seat
module. Repair any wiring as necessary.
(3) Check the power seat system wire harness con-
nections and pins to ensure proper circuit continuity
and ground paths.
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 driver side power seat with the memory
system option requires the use of a DRBIIItor
equivalent scan tool and the proper Diagnostic Proce-
dures information. The DRBIIItscan tool can pro-
vide confirmation that the PCI data bus is functional,
that all of the electronic modules are sending and
receiving 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 outputs to perform its driver side power seat
functions.
(1) If the driver power seat exhibits an interrupted
or jerky motion, ensure the wire harness is connected
correctly. To verify the concern, obtain a DRB IIItor
equivalent scan 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
RSPOWER SEAT SYSTEM8N-33
POWER SEAT SYSTEM (Continued)

upper half of the track unit. Each motor moves the
seat adjuster through a combination of worm-drive
gearboxes and screw-type drive units. The horizontal
adjustment motor moves the seat track in the for-
ward and aft directions. The recliner adjustment
motor moves the seat back in the forward and rear-
ward directions.
The power seat track unit cannot be repaired, and
is serviced only as a complete unit. If any component
in this unit is faulty or damaged, the entire power
seat track unit must be replaced.
OPERATION
When the power seat switch control knob or knobs
are actuated, a battery feed and a ground path are
applied through the switch contacts to the power seat
track or recliner adjuster motor. The selected
adjuster motor operates to move the seat track or
recliner through its drive unit in the selected direc-
tion until the switch is released, or until the travel
limit of the adjuster is reached. When the switch is
moved in the opposite direction, the battery feed and
ground path to the motor are reversed through the
switch contacts. This causes the adjuster motor to
run in the opposite direction.
No power seat switch should be held applied in any
direction after the adjuster has reached its travel
limit. The power seat adjuster motors each contain a
self-resetting circuit breaker to protect them from
overload. However, consecutive or frequent resetting
of the circuit breaker must not be allowed to con-
tinue, or the motor may be damaged.
DIAGNOSIS AND TESTING
POWER SEAT TRACK
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.
Actuate the power seat switch to move the power
seat track adjusters in each direction. The power seat
track adjusters should move in each of the selected
directions. If a power seat track adjuster operates in
one direction only, move the adjuster a short distance
in the opposite direction and test again to be certainthat the adjuster is not at its travel limit. If the
power seat track adjuster still operates in one direc-
tion only, (Refer to 8 - ELECTRICAL/POWER
SEATS/DRIVER SEAT SWITCH - DIAGNOSIS AND
TESTING). If the power seat track adjuster does not
operate in more than one direction, perform the fol-
lowing tests.
TESTING POWER SEAT TRACK MOTORS
(1) Check the power seat circuit breaker under the
seat. If OK, go to Step 2. If not OK, replace the
faulty power seat circuit breaker.
(2) Check for battery voltage at the power seat cir-
cuit breaker under the seat. If OK, go to Step 3. If
not OK, repair the open fused B(+) circuit to the fuse
in the Integrated Power Module (IPM) as required.
(3) Remove the outboard seat cushion side cover,
(Refer to 23 - BODY/SEATS/SEAT CUSHION SIDE
COVERS - REMOVAL). Disconnect the wire harness
connector from the power seat switch. Check for bat-
tery voltage at the fused B(+) circuit cavity of the
power seat switch wire harness connector. If OK, go
to Step 4. If not OK, repair the open fused B(+) cir-
cuit to the power seat circuit breaker under the seat
as required.
(4) Check for continuity between the ground cir-
cuit cavity of the power seat switch wire harness con-
nector and a known good ground. There should be
continuity. If OK, go to Step 5. If not OK, repair the
open ground circuit as required.
(5) Test the power seat switch, (Refer to 8 - ELEC-
TRICAL/POWER SEATS/DRIVER SEAT SWITCH -
DIAGNOSIS AND TESTING). If the switch tests OK,
test the circuits of the power seat wire harness
between the inoperative power seat track adjuster
motor and the power seat switch for shorts or opens.
If the circuits check OK, replace the faulty power
seat track unit. If the circuits are not OK, repair the
power seat wire harness as required.
REMOVAL
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) Disconnect and isolate the battery negative
cable.
8N - 38 POWER SEAT SYSTEMRS
POWER SEAT TRACK (Continued)

travel. This allows the power sliding door to stop and
reverse direction any time an obstruction is felt or
any of the command switches are operated (while
closing only). Battery voltage is supplied to the power
sliding door system through a 40 amp fuse, located in
the Integrated Power Module (IPM) assembly. The
child lockout switch prevents children from opening
or actuating the power sliding door system when
desired. In the unlikely event that the power sliding
door system develops a fault, the power sliding door
can still be operated manually from the interior or
exterior door handle, just like a standard manual
sliding door.
The power sliding door control module communi-
cates on the Programmable Communication Interface
(PCI) Data Bus Circuit. Therefore, the power sliding
door control module can generate and store its own
Diagnostic Trouble Codes (DTC). A diagnostic scan
tool, such as the DRB IIItis used to read and diag-
nose these trouble codes.
NOTE: It may be possible to generate Sliding Door
Diagnostic Trouble Codes during normal power
sliding door operation. Refer to the Body Diagnos-
tic Manual for a complete list of diagnostic routines.
For additional information, (Refer to 8 - ELECTRI-
CAL/POWER DOORS - OPERATION). Refer to the
appropriate wiring information for complete circuit
schematic or connector pin-out information.WARNING: BE CERTAIN TO READ ALL WARNINGS
AND CAUTIONS IN POWER SLIDING DOOR OPER-
ATION BEFORE ATTEMPTING ANY SERVICE OF
THE POWER SLIDING DOOR SYSTEM OR COMPO-
NENTS.
OPERATION
With the push of a power sliding door open/close
command switch (key fob, overhead console or B-pil-
lar mounted) a signal is sent out to the Body Control
Module (BCM). The BCM then sends a signal out on
the Programmable Communication Interface (PCI)
Data Bus circuit to the power sliding door module.
The power sliding door module then signals the
power sliding door latch to release the door to the
unlatched and movable position. The motor then
starts an open cycle.
During the door cycle, if the power sliding door
module detects sufficient resistance to door travel,
such as an obstruction in the door's path, the power
sliding door module will immediately stop door move-
ment and reverse door travel to the full open or
closed position. The ability for the power sliding door
module to detect resistance to door travel is accom-
plished by hall effect sensors detecting the door
motor speed.
The power sliding door control module has the abil-
ity to learn. Anytime a door is opened or closed using
the power sliding door system the module learns
from its cycle. If a replacement power sliding door
component is installed or a door adjustment is made,
the module must re-learn the effort required to open
or close the door. A learn cycle can be performed with
a complete cycle of the door, using any one of the
command switches or with the DRB IIIt, or equiva-
lent scan tool. (Refer to 8 - ELECTRICAL/POWER
DOORS - STANDARD PROCEDURE - LEARN
CYCLE) for detailed instructions.
The power sliding door system is designed with a
number of system inhibitors. These inhibitors are
necessary for safety and/or feasibility of the power
sliding door system. The power sliding door system
inhibitors are:
²The power sliding door must be in thefullopen
or closed position in order for the power sliding door
system to start a cycle. If the door is not in this posi-
tion (based on the input from the full open, pawl or
ratchet switches) the door control module will not
respond to command switch inputs.
²The transmission must be inpark or neutral
in order for the power sliding door system to start a
cycle.
²The child lockout switch must be in the
ªUNLOCKEDº position in order for the power sliding
door systems B-pillar switches to function.
Fig. 1 KEY FOB
1 - LEFT SLIDING DOOR SWITCH
2 - RIGHT SLIDING DOOR SWITCH
3 - LIFTGATE SWITCH
RSPOWER SLIDING DOOR SYSTEM8N-41
POWER SLIDING DOOR SYSTEM (Continued)

(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 the lamp does not illuminate, first check the
25 amp circuit breaker attached to the electrical dis-
tribution wiring bracket. If the circuit breaker is OK,
then check the 40 amp fuse (#28) in the Integrated
Power Module (IPM). If both components are OK,
then check for a broken wire.
VENT WINDOW MOTOR
DIAGNOSIS AND TESTING
VENT WINDOW MOTOR
If the power vent window motor is receiving proper
current and ground and does not operate proceed
with motor test. Refer to the appropriate wiring
information.
(1) Remove D-pillar trim panel necessary to gain
access to power vent window motor wire connector,
(Refer to 23 - BODY/INTERIOR/LEFT D-PILLAR
TRIM PANEL - REMOVAL) or (Refer to 23 - BODY/
INTERIOR/RIGHT D-PILLAR TRIM PANEL -
REMOVAL).
(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.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.(2) Remove D-pillar trim panel. (Refer to 23 -
BODY/INTERIOR/LEFT D-PILLAR TRIM PANEL -
REMOVAL) or (Refer to 23 - BODY/INTERIOR/
RIGHT D-PILLAR TRIM PANEL - REMOVAL).
(3) Disconnect wire connector from power vent
motor.
(4) Using a flat bladed tool, carefully lift the circu-
lar actuator link tab. Remove link from window ball
socket.
(5) Remove bolts holding power vent motor to
D-pillar (Fig. 1).
(6) Remove power vent motor.
INSTALLATION
(1) Obtain new vent window motor.
(2) Snap the actuator link socket onto the quarter
window ball socket. Using a soft rubber mallet, push
the circular link tab flush with link surface.
(3) Install bolts holding power vent motor to D-pil-
lar.
(4) Reconnect wire connector to power vent motor.
(5) Reconnect the battery negative cable.
(6) Cycle quarter window open/close to verify func-
tion.
(7) Install D-pillar trim panel.
WINDOW MOTOR
REMOVAL
The window motor is incorporated into the window
regulator assembly. If the window motor requires
replacement, the window regulator must be replaced.
(Refer to 23 - BODY/DOOR - FRONT/WINDOW
REGULATOR - REMOVAL).
Fig. 1 VENT WINDOW MOTOR
1 - VENT WINDOW MOTOR
2 - WIRE HARNESS CONNECTOR
3 - BOLT
4 - VENT WINDOW
8N - 62 POWER WINDOWSRS
POWER WINDOWS (Continued)

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.............................4
INSTALLATION..........................4
SWITCH
DESCRIPTION..........................5
OPERATION............................5
REMOVAL.............................5
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 25 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

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.............................6
INSTALLATION..........................6
TRANSPONDER KEY
DESCRIPTION..........................6
OPERATION............................6
STANDARD PROCEDURE - TRANSPONDER
PROGRAMMING.......................6
VTSS/SKIS INDICATOR LAMP
DESCRIPTION..........................8
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 (integrated
key with tranponder and RKE on a circuit board),
indicator light, Body Control Module (BCM), and the
Powertrain 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 integrated key.
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.
RSVEHICLE THEFT SECURITY8Q-1

The SKREES can be diagnosed and any stored DTC's
can be retrieved using a DRBllltscan tool as
described in the appropriate Body Diagnostic Proce-
dures information.
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - SENTRY KEY
REMOTE ENTRY SYSTEM
WARNING: On vehicles equipped with airbags, refer
to electrical, restraints, warnings, before attempting
component diagnosis or service. Failure to take the
proper precautions could result in accidental airbag
deployment and possible personal injury or death.
NOTE: The following tests may not prove conclu-
sive in the diagnosis of this system. The most reli-
able, efficient, and accurate means to diagnose the
Sentry Key Remote Entry System (SKREES)
involves the use of a DRBIIITscan tool. Refer to the
proper Body Diagnostic Procedures information.
The Sentry Key Remote Entry System (SKREES)
and the Programmable Communication Interface
(PCI) bus network should be diagnosed using a scan
tool. The scan tool will allow confirmation that the
PCI bus is functional, that the Sentry Key Remote
Entry Module (SKREEM) is placing the proper mes-
sages on the PCI bus, and that the Powertrain Con-
trol Module (PCM) is receiving the PCI bus
messages. Refer to the proper Body Diagnostic Proce-
dures information, and Wiring Diagrams for complete
circuit descriptions and diagrams.
(1) Check the fuses in the Integrated Power Mod-
ule (IPM). If OK, go to Step 2. If not OK, repair the
shorted circuit or component as required and replace
the faulty fuse.
(2) Disconnect and isolate the battery negative
remote cable from the remote terminal. Unplug the
wire harness connector at the SKREEM. Check for
continuity between the ground circuit cavity of the
SKREEM wire harness connector and a good ground.
There should be continuity. If OK, go to Step 3. If not
OK, repair the open circuit to ground as required.
(3) Connect the battery negative cable. Check for
battery voltage at the fused B(+) circuit cavity of the
SKREEM wire harness connector. If OK, go to Step
4. If not OK, repair the open circuit to the fuse in the
IPM as required.
(4) Turn the ignition switch to the ON position.
Check for battery voltage at the fused ignition switch
output (run/start) circuit cavity of the SKREEM wire
harness connector. If OK, use a scan tool and the
proper Body Diagnostic Procedures information tocomplete the diagnosis of the SKREES. If not OK,
repair the open circuit to the fuse in the IPM as
required.
DIAGNOSIS AND TESTING - VEHICLE THEFT
SECURITY SYSTEM
Refer to the appropriate wiring information. The
wiring information includes wiring diagrams, proper
wire and connector repair procedures, further details
on wire harness routing and retention, as well as
pin-out and location views for the various wire har-
ness connectors, splices and grounds. Using a
DRBIIItscan tool. Refer to the proper Body Diagnos-
tic Procedures information for test procedures.
HOOD AJAR SWITCH -
EXPORT
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Using a small flat blade screwdriver, pry trig-
ger switch from the bracket on the left fender well.
(3) Disconnect the hood ajar switch from the wire
connector and remove from vehicle.
INSTALLATION
(1) Connect the hood ajar switch to the wire conec-
tor.
(2) Press the hood ajar switch into position on the
bracket located on the left inner fender well.
(3) Reconnect the battery negative cable.
(4) Close the hood and check for proper operation.
SENTRY KEY REMOTE ENTRY
MODULE
DESCRIPTION
The Sentry Key Remote Entry Module (SKREEM)
performs the functions of the Sentry Key Immobilizer
Module (SKIM), Remote Keyless Entry (RKE) Mod-
ule, and the Tire Pressure Monitoring (TPM) System
(previously part of the Electronic Vehicle Information
Center (EVIC).
The SKREEM is located in the same location as
the SKIM was and is mounted the same way. It looks
identical, but has added capabilities.
SENTRY KEY IMMOBILIZER
The Sentry Key Immobilizer System (SKIS)
authenticates an electronically coded Transponder
Key placed into the ignition and sends a valid/invalid
key message to the Powertrain Control Module
RSVEHICLE THEFT SECURITY8Q-3
VEHICLE THEFT SECURITY (Continued)