Chrysler Stratus LHD 1997, Interactive Electronic Service Manual, Page: 502 / 1534

VEHICLE THEFT SECURITY SYSTEM
CONTENTS
page page
DESCRIPTION AND OPERATION
CENTRAL LOCK/UNLOCK SYSTEM . . . . . . . . . 1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . 1
TRIGGERING THE VTSS . . . . . . . . . . . . . . . . . . 1
DIAGNOSIS AND TESTING
HEADLAMP RELAY . . . . . . . . . . . . . . . . . . . . . . 1
HORN RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SYSTEM SELF-TESTS . . . . . . . . . . . . . . . . . . . . 2
REMOVAL AND INSTALLATION
JUNCTION BLOCK/BODY CONTROL MODULE . 2
VTSS DOOR LOCK SWITCH . . . . . . . . . . . . . . . 2
VTSS TRUNK LOCK SWITCH
. . . . . . . . . . . . . . 2
DESCRIPTION AND OPERATION
INTRODUCTION
The Vehicle Theft Security System (VTSS) is pas-
sive system and is designed to protect against whole
vehicle theft. The system monitors vehicle doors,
trunk key cylinder, and ignition action for unautho-
rized operation. The alarm activates:
•
Sounding of the horn
•
Flashing of the interior lamps
•
Flashing of the headlamps
•
An engine kill feature
Passive arming occurs upon normal vehicle exit:
Open door, lock with power locks, close door. The
Vehicle Theft security LED lamp in the instrument
cluster will flash quickly for 15 seconds, indicating
that arming is in progress. If no monitored systems
are activated during this period, the system will arm.
After 15 seconds the LED lamp will continue to flash
at a slower rate. This indicates that the system is
armed. If the trunk key cylinder switch is not sensed
by the system, the LED lamp will remain lit during
the arming process, although the system will still
arm. The system is to be considered as an active
armed system when using:
•
The Remote Keyless Entry
•
The Central Lock Feature.
If the LED lamp does not illuminate at all upon
door closing it indicates that the system is not arm-
ing.
Passive disarming occurs upon normal vehicle
entry by unlocking either door with the ignition key/
remote transmitter. This disarming will also halt the
alarm once it has been activated.
A tamper alert exists to notify the driver that the
alarm had been activated. If the alarm has since
timed-out for at least 3 minutes but not more than
18 minutes ago. This alert consists of 3 horn pulses
when the vehicle is disarmed.
The alarm system will not arm if the doors are
locked manually by pushing the lock knobs. This will
manually override the system.
CENTRAL LOCK/UNLOCK SYSTEM
The central lock/unlock system uses the Vehicle
Theft Security System door switch to lock and unlock
all doors using the key. Turning the key to the lock
position in the driver’s or passenger’s door will lock
all doors. Turning the key in the driver’s door to the
unlock position once will unlock driver’s door only.
Turning the key a second time within five seconds of
the first time will unlock all doors. Turning the key
in the passenger’s door to the unlock position will
unlock all doors.
Using the door key cylinder or the RKE transmit-
ter lock/unlock operation will arm/disarm the Vehicle
Theft Security System.
TRIGGERING THE VTSS
Using the power door switch, ignition key or the
keyless transmitter will arm the system. Any of the
following actions will trigger the system:
(1) Opening any door.
(2) Removing the trunk lock cylinder.
(3) Turning the ignition to the ON position.
NOTE: The ignition switch can be turned to the
accessory position without triggering alarm system.
DIAGNOSIS AND TESTING
HEADLAMP RELAY
For test of headlamp relay use a known good relay.
Refer to Group 8W. Wiring Diagrams for circuits.
HORN RELAY
Refer to Group 8G, Horns for test procedures.
JA
VEHICLE THEFT SECURITY SYSTEM 8Q - 1