Disarming can be accomplished with a RKE un-
lock, turning the ignition on with a valid Sentry key
or unlocking the vehicle with the driver door cylin-
der lock. All of the switches for the VTSS system
can be monitored using the DRBIIIt. The DRBIIIt
is also useful to determine the cause of a customer
complaint of the alarm going off with no apparent
reason.
3.7.2 VEHICLE THEFT SECURITY SYSTEM
(EXPORT ONLY)
When the VTSS is armed, it will monitor the
interior of the vehicle for movement via an intru-
sion sensor (if equipped), the ignition switch status,
ajar switches for the vehicle doors, decklid and
hood. Vehicles without an intrusion sensor will
have a decklid security switch (knockout)whichwill
also be monitored. If the alarm is tripped, it will
sound the vehicles horn or a battery backed siren
for vehicles equipped with the intrusion sensor,
flash the exterior lamps and the VTSS indicator
located in the instrument cluster.
Arming the system is accomplished by locking the
doors with the door lock switch following a normal
exit sequence of opening the door pressing the
power lock button and closing the door, or by using
either door cylinder lock switch or by pressing the
RKE lock button. After all the doors are closed, the
VTSS indicator will flash quickly for sixteen-
seconds indicating the pre-arm process, after which
it will flash at a slower rate indicating the system is
armed. If during the pre-arm process a door is
opened, the ignition is turned to the Run/Start
position or if the RKE module receives an unlock
request the system will automatically be disarmed.
If the VTSS indicator stays on steady during pre-
arm, it is an indication of the hood ajar circuit being
shorted (hood opened) or the decklid security switch
circuit being open (if equipped). Defeating the in-
trusion sensor feature for vehicles so equipped can
be done by three additional lock request to the RKE
module within 5 seconds.
Disarming is done by either a RKE unlock or
turning the ignition on with a valid Sentry key. All
of the switches for the VTSS system can be moni-
tored using the DRBIIIt. The DRBIIIt isalsouseful
to determine the cause of a customer complaint of
the alarm going off with no apparent reason.
3.7.3 POWER DOOR LOCKS
3.7.3.1 CENTRAL LOCKING (W/VTSS
ONLY)
This feature allows the customer to lock/unlock
all vehicle doors with the key from the front door
cylinder lock switch. The customer can choose to
program this feature to unlock all doors with one
turn of the key or open the driver door only with the
first turn of the key and open the other doors with
the second turn. Altering the operation of the un-
lock function via the key cylinder switch from one
turn to two turns will also alter the operation of the
RKE transmitter from one press to two presses.
3.7.3.2 ROLLING (AUTOMATIC) DOOR
LOCKS
All vehicle doors are locked automatically once
the vehicle reaches a speed of 15 mph and all doors
are closed. This feature can be also be enabled/
disabled by the customer.
3.7.3.3 DOOR LOCK INHIBIT
This feature disables the door lock command from
the interior door lock switch whenever the driver
door is open and the key is in the ignition. This
prevents the driver from locking the keys in the
ignition when using the power door locks. This
feature is inoperable if the IOD fuse is not installed.
3.7.3.4 POWER DECKLID RELEASE
Electrically releases the decklid upon two presses
of the RKE transmitter decklid release button. This
feature is disabled once the speed of the vehicle is
greater than 5 mph. The decklid can also be re-
leased from the switch in the glove box.
3.7.3.5 PANIC MODE (IF EQUIPPED)
Upon activation of the panic function, the head-
lamps and park lamps flash in an alternating
manner, the horn pulses every second and the
courtesy lamps are turned on. The panic mode
allows normal nightime driving by allowing the
headlamps and park lamps to be on steady when
the headlamp switch is in the on position. Panic
mode is activated immediately by pressing the
panic button once. It does not disarm the VTSS or
unlock the doors. It is canceled by pressing the
button a second time, reaching a vehicle speed
greater than 15 mph or after 3 minutes has elapsed
in panic mode. Once panic mode has been activated
there is a 2-second delay before it will turn off. Once
it is cancelled there is a 2-second delay before it can
be reactivated. This is to avoid the problem of
deactivating and immediate reactivating due to
multiple button presses.
3.8 VEHICLE COMMUNICATION
The Programmable Communication Interface or
PCI Bus is a single wire multiplexed network capa-
ble of supporting binary encoded messages shared
between multiple modules. The PCI bus circuit is
10
GENERAL INFORMATION
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