Chrysler PT Cruiser. Manual — part 526
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-
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 liftgate.
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 PERSONAL
INJURY.
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
T
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
t
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.
8Q - 2
VEHICLE THEFT SECURITY
PT
VEHICLE THEFT SECURITY (Continued)
(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
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
PIN
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.
Fig. 1 BATTERY NEGATIVE CABLE - REMOVE/
INSTALL
PT
VEHICLE THEFT SECURITY
8Q - 3
VEHICLE THEFT SECURITY (Continued)
(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.
NOTE: If a PCM is replaced, the unique “Secret
Key” data must be transferred from the SKIM to the
PCM. This procedure requires the SKIM to be
placed in SECURED ACCESS MODE using the four
digit PIN code.
DOOR CYLINDER LOCK
SWITCH
REMOVAL
(1) Open hood.
(2) Disconnect and isolate the battery negative
cable (Fig. 1).
(3) Remove front door trim panel (Refer to 23 -
BODY/DOOR - FRONT/TRIM PANEL - REMOVAL).
(4) Remove door cylinder lock switch from door
lock cylinder (Fig. 2).
(5) Remove the switch from the inside of the door
by pulling the switch and attached wires out of the
door.
(6) Cut the two wires leading to the bad switch, at
least three inches from where the wires enter the
switch.
INSTALLATION
(1) Splice in the new switch. Refer to Wiring Dia-
grams for splicing information.
(2) Route the door cylinder lock switch inside the
door panel.
(3) Install door cylinder lock switch on rear of door
lock cylinder (Fig. 2).
(4) Install the front door trim panel (Refer to 23 -
BODY/DOOR - FRONT/TRIM PANEL - INSTALLA-
TION).
(5) Connect the battery negative cable (Fig. 1).
(6) Close hood.
(7) Verify vehicle and system operation.
Fig. 2 DOOR CYLINDER LOCK SWITCH - REMOVE/INSTALL
1 - DOOR CYLINDER LOCK SWITCH
2 - DOOR LOCK MOTOR
8Q - 4
VEHICLE THEFT SECURITY
PT
VEHICLE THEFT SECURITY (Continued)
HOOD AJAR SWITCH -
EXPORT
REMOVAL
(1) Open hood.
(2) Disconnect and isolate the battery negative
cable (Fig. 1).
(3) Disconnect wire harness connector from hood
ajar switch.
(4) Firmly press tangs on the bottom side of the
switch together and push up through bracket (Fig. 3).
(5) Remove switch from vehicle.
INSTALLATION
(1) Firmly press hood ajar switch through bracket
(Fig. 3).
(2) Connect wire harness connector to hood ajar
switch.
(3) Connect the battery negative cable (Fig. 1).
(4) Close hood.
(5) Verify vehicle and system operation.
LIFTGATE CYLINDER LOCK
SWITCH
REMOVAL
(1) Open hood.
(2) Disconnect and isolate the battery negative
cable (Fig. 1).
(3) Remove the liftgate trim panel (Refer to 23 -
BODY/DECKLID/HATCH/LIFTGATE/TAILGATE/
TRIM PANEL - REMOVAL).
(4) Remove the liftgate cylinder U-bracket by slid-
ing it out.
(5) Remove switch E-clip and disconnect connector.
(6) Remove liftgate cylinder lock switch from lift-
gate lock cylinder (Fig. 4) by gently unsnapping.
INSTALLATION
(1) Install liftgate cylinder lock switch on rear of
liftgate lock cylinder without rotating the switch
(Fig. 2).
(2) Install the liftgate cylinder U-bracket by slid-
ing it in.
(3) Install switch E-clip and connector.
(4) Install the liftgate trim panel (Refer to 23 -
BODY/DECKLID/HATCH/LIFTGATE/TAILGATE/
TRIM PANEL - INSTALLATION).
(5) Connect the battery negative cable (Fig. 1).
(6) Close hood.
(7) Verify vehicle and system operation.
Fig. 3 HOOD AJAR SWITCH LOCATION
1 - HOOD AJAR SWITCH CONNECTOR
2 - BRAKE FLUID RESERVOIR
Fig. 4 LIFTGATE CYLINDER LOCK SWITCH
LOCATION
1 - LIFTGATE CYLINDER LOCK SWITCH
2 - LIFTGATE LOCK MOTOR
3 - LATCH ASSEMBLY
4 - LIFTGATE AJAR SWITCH
PT
VEHICLE THEFT SECURITY
8Q - 5
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