built-in tamper alert feature. This feature is designed
to notify the driver that the system had been acti-
vated during its armed state. When the vehicle is
disarmed, 3 horn pulses will be followed by the ini-
tial disarming pulse letting the driver know the sys-
tem had been activated.

VEHICLE THEFT SECURITY SYSTEM - EXPORT

Some vehicles are equipped with a Premium Vehi-

cle Theft Security System (VTSS). The premium
VTSS is designed to protect against whole vehicle
theft and the loss of its contents. This system moni-
tors vehicle doors, hood, liftgate and ignition key cyl-
inders

for

unauthorized

operation,

well

monitoring any movement inside the cabin when the
intrusion sensor is armed.

Some vehicles are equipped with a standard vehi-

cle theft security system. This system is designed to

protect against whole vehicle theft. This system mon-
itors the vehicle doors, liftgate, and ignition key cyl-
inders for unauthorized operation.

SENTRY KEY IMMOBILIZER SYSTEM

The Sentry Key Immobilizer System (SKIS) is

available as a factory-installed option on this vehicle.
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 components of
the system are the Sentry Key Immobilizer Module
(SKIM), Sentry Key (ignition key with a transponder
molded into the head), indicator light, and the Pow-
ertrain Control Module (PCM). The SKIM is mounted
to the steering column with the molded, integral
antenna mounted on the trim ring surrounding the
ignition lock cylinder. The indicator light, is located
in the instrument cluster.

OPERATION

VEHICLE THEFT SECURITY SYSTEM

The system is armed when the vehicle is locked

using the:

• Power door lock switches.

• Remote Keyless Entry (RKE) transmitter.

• Key cylinder switches.
After the vehicle is locked and the last door is

closed, the circular red VTSS indicator in the instru-
ment cluster will flash quickly for 16 seconds, indi-

PL/SRT-4

VEHICLE THEFT SECURITY

8Q - 1

cating that arming is in progress. If no monitored
systems are activated during this period the system
will arm. After 16 seconds, the LED will continue to
flash at a slower rate indicating the system is armed.

If the VTSS indicator does not illuminate at all

upon door closing it indicates that the system is not
arming.

VTSS disarming occurs upon normal vehicle entry

by unlocking either door via the key cylinders or
RKE transmitter, or by starting the vehicle with a
valid Sentry Key. This disarming will also halt the
alarm once it has been activated.

A tamper alert exists to notify the driver that the

system had been activated. This alert consists of 3
horn pulses when the vehicle is disarmed.

The VTSS will not arm by mechanically locking the

vehicle doors. This will manually override the sys-
tem.

The VTSS functionality is contained within the

Remote Keyless Entry (RKE) Module, sometimes
referred to as the Alarm Remote Keyless Entry Mod-
ule (ARKEM) (Refer to 8 - ELECTRICAL/POWER
LOCKS - DESCRIPTION).

TRIGGERING THE VTSS

ARMING THE VTSS

Locking the power door switch and closing the door

or the keyless transmitter will arm the system, or
locking any door or liftgate with the key cylinder
switch.

SETTING OFF THE VTSS Any of the following actions will
trigger the system:

(1) Opening any door or knocking out the decklid

lock cylinder.

NOTE: Only EXPORT alarm systems will include a
hood ajar switch, motion sensor, and decklid ajar
switch.

(2) Turning the ignition to the ON position with an

invalid key.

VEHICLE THEFT SECURITY SYSTEM - EXPORT

In the event the Premium VTSS is triggered, the

VTSS siren will sound and the turn indicator lamps
will flash on the premium security system. The pre-
mium system cannot be disarmed via the key cylin-
ders.

In the event the Standard VTSS is triggered, the

VTSS will sound the vehicle horn and flash the head-
lamp and park lamps in a alternating fashion.

The VTSS and RKE system receives signals from

the hand-held key fob or transmitter. European mar-
ket vehicles use 433 MHz frequency. Japan market
vehicles use 268 MHz frequency.

SENTRY KEY IMMOBILIZER SYSTEM

The SKIS includes keys from the factory which are

pre-programmed. Each SKIM will recognize a maxi-
mum of eight Sentry Keys. If the customer would
like to own additional keys other than those provided
with the vehicle, they can be purchased from any
authorized dealer. These keys must be programmed
to the SKIM on the vehicle in order for the system to
recognize them as valid keys. This can be done by
the dealer with a DRB III

t scan tool or by a cus-

tomer if this feature is available in their market and
they have two (2) valid keys already available to
them. Refer to the Service Procedures portion of this
system for additional details. The SKIS performs a
self-test each time the ignition switch is turned to
the ON position and will store Diagnostic Trouble
Codes (DTC’s) if a system malfunction is detected.
The DTC’s can be retrieved using a DRB III

t scan

tool. The SKIS can be diagnosed using the proper
Powertrain Diagnostic Procedures manual.

DIAGNOSIS AND TESTING - SENTRY KEY
IMMOBILIZER SYSTEM

WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, (Refer to 8 - ELECTRICAL/RESTRAINTS -
WARNING). FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE OCCUPANT
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 Immobilizer System (SKIS) involves the
use of a DRB lll

scan tool and the proper Power-

train Diagnostic Procedures manual.

The Sentry Key Immobilizer System (SKIS) and

the Programmable Communication Interface (PCI)
bus network should be diagnosed using a DRB lll

scan tool. The DRB lll

t will allow confirmation that

the PCI bus is functional, that the Sentry Key Immo-
bilizer Module (SKIM) is placing the proper messages
on the PCI bus, and that the Powertrain Control
Module (PCM) and the instrument cluster are receiv-
ing the PCI bus messages. Refer to the proper Pow-
ertrain Diagnostic Procedures manual. Refer to
Wiring Diagrams for complete circuit descriptions
and diagrams.

(1) Check the fuses in the fuse block. If OK, go to

Step 2. If not OK, repair the shorted circuit or com-
ponent as required and replace the faulty fuse.

(2) Disconnect and isolate the battery negative

cable (Fig. 1). Unplug the wire harness connector at
the SKIM. Check for continuity between the ground

8Q - 2

VEHICLE THEFT SECURITY

PL/SRT-4

VEHICLE THEFT SECURITY (Continued)

circuit cavity of the SKIM 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
SKIM wire harness connector. If OK, go to Step 4. If
not OK, repair the open circuit to the fuse in the fuse
block 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 SKIM wire
harness connector. If OK, use a DRB lll

t scan tool

and the proper Powertrain Diagnostic Procedures
manual to complete the diagnosis of the SKIS. If not
OK, repair the open circuit to the fuse in the fuse
block as required.

GENERAL TROUBLESHOOTING TIPS

(1) Using a DRB III

t scan tool, read and record

the faults as they exist in the module when you first
start your analysis of the vehicle. It is important to
document these faults because the SKIM does not
differentiate between historical faults (those faults
that occurred in the past) and active faults (those
faults that are present now). If this problem turns
out to be an intermittent condition, this information
may become very valuable to your analysis.

(2) Using a DRB III

t scan tool, erase the faults in

the Sentry Key Immobilizer Module (SKIM).

(3) Turn the ignition off and back on again.
(4) Using a DRB III

t scan tool, read the faults

now listed in the Sentry Key Immobilizer Module
(SKIM).

(5) Using the fault information you now have,

refer to the proper Powertrain Diagnostic Procedures
manual for additional specific steps.

STANDARD PROCEDURE

STANDARD PROCEDURE - RKE/VTSS
CONFIGURING A NEW MODULE

To switch operating modes or to configure a new

module, a DRB lll

t scan tool must be used.

(1) Hook up the DRB lll

t scan tool to the Data

Link Connector (DLC).

(2) With the key in the ignition, turn the key to

the RUN position.

(3) After the DRB lll

t scan tool initialization, per-

form the following:

(a) Select “Theft Alarm.”
(b) Select “VTSS.”
(c) Select “Miscellaneous.”

(4) Once in the “Miscellaneous” screen:

(a) If you wish to configure a new module, select

“Configure Module.”

STANDARD PROCEDURE - SENTRY KEY
IMMOBILIZER SYSTEM INITIALIZATION

The Sentry Key Immobilizer System (SKIS) initial-

ization should be performed following a Sentry Key
Immobilizer Module (SKIM) replacement.

It can be summarized by the following:
(1) Obtain

the

vehicles

unique

number

assigned to it’s original SKIM from the vehicle
owner, the vehicle’s invoice or from Chrysler’s Cus-
tomer Center.

(2) With the DRB lll

t scan tool, select “Theft

Alarm,” “SKIM,” Miscellaneous.” Select “SKIM Mod-
ule Replaced” function and the DRB lll

t will prompt

you through the following steps.

(3) Enter secured access mode using the unique

four digit PIN number.

(4) Program the vehicle’s VIN number into the

SKIM’s memory.

(5) Program the country code into the SKIM’s

memory.

(6) Transfer the vehicle’s unique Secret Key data

from the PCM. This process will require the SKIM to
be in secured access mode. The PIN number must
be entered into the DRB lll

t before the SKIM will

enter secured access mode. Once secured access
mode is active, the SKIM will remain in that mode
for 60 seconds.

(7) Program all customer keys into the SKIM’s

memory. This required that the SKIM be in secured
access mode The SKIM will immediately exit
secured access mode after each key is pro-
grammed.

Fig. 1 BATTERY NEGATIVE CABLE - REMOVE/

INSTALL

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VEHICLE THEFT SECURITY

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VEHICLE THEFT SECURITY (Continued)

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