Chrysler Stratus LHD 1997, Interactive Electronic Service Manual

Page: 1069 / 1534

driver side end of the heater-A/C housing. The
receiver is connected to the dash panel cross-body
wiring harness.
For diagnosis of the vehicle immobilizer receiver or
the CCD data bus, a DRB scan tool is required. Refer
to the Vehicle Theft Security System menu item of
the DRB scan tool for the procedures. The immobi-
lizer receiver cannot be repaired and, if faulty, the
unit must be replaced.
ARMING
Active arming of the vehicle immobilizer system
occurs when the Lock button of either of the two
immobilizer transmitters is depressed, as long as the
ignition switch is in the Off position. The vehicle
immobilizer system cannot be actively armed while
the ignition switch is in the On or Start positions.
Passive arming of the system occurs when the igni-
tion switch is in the Off position for more than five
minutes. See Power-Up Mode in this group for a
description of other conditions that can result in pas-
sive arming of the vehicle immobilizer system.
Following successful passive or active arming of
the vehicle immobilizer system, a tone generator
located within the immobilizer receiver will issue two
audible chirps. As a reminder, the immobilizer
receiver will also generate two audible chirps if the
ignition switch is turned to the On position while the
vehicle immobilizer system is armed.
DISARMING
Active disarming of the vehicle immobilizer system
occurs when the Unlock button of either of the two
immobilizer transmitters is depressed, regardless of
ignition switch position. This is the only way that the
immobilizer system can be disarmed. Following suc-
cessful disarming of the vehicle immobilizer system,
a tone generator located within the immobilizer
receiver will issue one audible chirp.
DESCRIPTION AND OPERATION
POWER-UP MODE
When the vehicle immobilizer system senses that
the vehicle battery has been disconnected and recon-
nected, it enters its power-up mode. If the immobi-
lizer
system was armed prior to the battery
disconnect, the system remains armed when the bat-
tery is reconnected.
If the immobilizer system was disarmed prior to
the battery disconnect, the system will remain dis-
armed if the battery is reconnected within five min-
utes. The system will passively arm itself when the
battery is reconnected more than five minutes after a
battery disconnect or failure. After any passive arm-
ing, the system will have to be actively disarmed
using one of the transmitters.
The power-up mode logic also applies if the battery
goes dead, and battery jump-starting is attempted.
The engine no-run feature will prevent the engine
from operating until the vehicle immobilizer system
has been actively disarmed.
IMMOBILIZER RECEIVER
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO GROUP 8M - PASSIVE RESTRAINT
SYSTEMS BEFORE ATTEMPTING STEERING WHEEL,
STEERING COLUMN, OR INSTRUMENT PANEL COM-
PONENT DIAGNOSIS OR SERVICE. FAILURE TO
TAKE THE PROPER PRECAUTIONS COULD RESULT
IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSI-
BLE PERSONAL INJURY.
(1) Disconnect and isolate the battery negative cable.
(2) Remove the instrument cluster as described in
Group 8E - Instrument Panel Systems.
(3) Reach through the inboard side of the instru-
ment cluster opening and remove the receiver by
pulling it off of the hook and loop fastener patch on
the dash panel above the heater-A/C housing (Fig. 1).
(4) Unplug the immobilizer receiver from the wir-
ing connector.
(5) Reverse the removal procedures to install.
(6) Refer to the Vehicle Theft Security System
menu item on the DRB scan tool for the procedures
to program transmitter vehicle access codes into the
memory of the new immobilizer receiver.
Fig. 1 Immobilizer Receiver Remove/Install
14 - 4 FUEL SYSTEM
JA
GENERAL INFORMATION (Continued)