ignition switch DODGE NEON 2000 Service Service Manual

INSTALLATION
For installation, reverse the above procedures.
Ensure that the red locking tab is in the lock position
after installing the connector. Tighten trim screws to
2 N´m (20 in. lbs.) torque. Tighten the three module
retaining nuts to 22 to 34 N´m (200 to 300 in. lbs.)
torque. Do not connect battery negative cable. Refer
to Diagnosis and Testing for Airbag System Test pro-
cedures.
DEPLOYED MODULE
REMOVAL
When removing a deployed module, rubber gloves,
eye protection, and a long-sleeved shirt should be
worn, as there may be deposits on the surface which
could irritate the skin and eyes.
(1) Roll/fold airbag towards instrument panel.
(2) Close door over folded airbag and tape door
closed.
(3) Disconnect and isolate the battery negative
cable (Fig. 4).
(4) Remove instrument panel top cover. Refer to
Group 8E Instrument Panel Systems, Instrument
Panel Top Cover Removal and Installation.
(5) Remove three screws to glove box door and
remove door from instrument panel.
(6) Remove three passenger airbag cover screws
attaching cover to top of instrument panel (Fig. 9).
(7) Remove two passenger airbag cover screws
attaching cover to front lower instrument panel.
(8) Remove three module attaching nuts from the
support structure.
(9) Lift module up until the wire connector is visi-
ble and disconnect the 4-way wire connector from
module. Unlock the red locking tab and compress
lock to release the connector (Fig. 10).
INSTALLATION
For installation, reverse the above procedures.
Ensure that the red locking tab is in the lock position
after installing the connector. Tighten trim screws to
2 N´m (20 in. lbs.) torque. Tighten the module nuts to
22 to 34 N´m (200 to 300 in. lbs.) torque. Do not con-
nect battery negative cable. Refer to Diagnosis and
Testing for Airbag System Test procedures.
STEERING WHEEL
WARNING: DISCONNECT AND ISOLATE THE BAT-
TERY NEGATIVE (GROUND) CABLE BEFORE
BEGINNING ANY AIRBAG SYSTEM COMPONENT
REMOVAL OR INSTALLATION PROCEDURE. THIS
WILL DISABLE THE AIRBAG SYSTEM. FAILURE TO
DISCONNECT BATTERY COULD RESULT IN ACCI-DENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
ALLOW SYSTEM CAPACITOR TO DISCHARGE
FOR 1 MINUTE BEFORE REMOVING ANY AIRBAG
COMPONENTS.
REMOVAL
(1) Adjust the steering wheel so that the tires are
in the straight ahead position. Then:
(a) Rotate the steering wheel half turn (180
degrees) to the right (clockwise).
(b) Lock column with the ignition cylinder lock.
(2) Disconnect and isolate the battery negative
cable (Fig. 4).
(3) Remove the speed control switches and discon-
nect the wire connectors or covers (Fig. 11).
(4) Remove the Driver Airbag Module attaching
bolts from the back of steering wheel.
(5) Lift module and disconnect the airbag and horn
wire connectors.
(6) Remove steering wheel retaining nut.
(7) Remove the steering wheel with a steering
wheel puller (Fig. 12). While removing the steering
wheel take care to feed the wires gently through the
holes in the steering wheel.
INSTALLATION
(1) Confirm that:
(a) The steering wheel position is a half turn
(180 degrees) to the right (clockwise).
(b) The column is locked with the ignition cylin-
der lock.
(c) Check that the turn signal stalk is in the
neutral position.
(2) Install the steering wheel ensuring the flats on
hub align with the clockspring. Pull the horn lead,
airbag and speed control leads through the larger
Fig. 11 Steering Wheel Remove/Install
8M - 8 PASSIVE RESTRAINT SYSTEMSPL
REMOVAL AND INSTALLATION (Continued)

ELECTRICALLY HEATED SYSTEMS
TABLE OF CONTENTS
page page
DESCRIPTION AND OPERATION
REAR WINDOW DEFOGGER SYSTEM.........1
REAR WINDOW DEFOGGER SWITCH.........1
DIAGNOSIS AND TESTING
GRID LINES.............................2
REAR WINDOW DEFOGGER SWITCH.........2REAR WINDOW DEFOGGER SYSTEM.........2
SERVICE PROCEDURES
GRID LINE AND TERMINAL REPAIR..........3
REMOVAL AND INSTALLATION
REAR WINDOW DEFOGGER SWITCH.........4
DESCRIPTION AND OPERATION
REAR WINDOW DEFOGGER SYSTEM
For proper operation of the Rear Window Defogger
system refer to the Owner's Manual.
The system consists of a rear glass with two verti-
cal bus bars and a series of electrically connected
grid lines fired on the inside surface (Fig. 1). A con-
trol switch and a timing circuit are combined into a
single assembly.
Circuit protection is provided by a cartridge fuse
located in the Power Distribution Center (PDC) for
the heated grid circuit, and by a fuse in the fuse
block for the control circuit.
When the switch is turned to the ON position, cur-
rent is directed to the rear defogger grid lines. The
heated grid lines heat the rear glass to clear the sur-
face of fog or frost.CAUTION: Grid lines can be damaged or scraped
off with sharp instruments. Care should be taken in
cleaning glass or removing foreign materials,
decals or stickers. Normal glass cleaning solvents
or hot water used with rags or toweling is recom-
mended.
REAR WINDOW DEFOGGER SWITCH
The rear window defogger switch is a control
switch and timing circuit integrated into a single
panel mounted assembly (Fig. 2). Actuating the
switch energizes the circuit which allows current to
flow through the grid lines. Upon initial actuation for
approximately eight to ten minutes, or until either
the switch or ignition is turned off. An indicating
lamp illuminates a Light Emitting Diode (LED)
inlaid in the control switch.
Fig. 1 Rear Window Defogger - Typical
1 ± REAR WINDOW DEFOGGER
Fig. 2 Rear Window Defogger Switch Location
1 ± REAR WINDOW DEFOGGER SWITCH
2 ± TRACTION CONTROL SWITCH
3 ± CIGAR LIGHTER/AUXILIARY POWER OUTLET
PLELECTRICALLY HEATED SYSTEMS 8N - 1

DIAGNOSIS AND TESTING
GRID LINES
The horizontal grid lines and vertical bus bar lines
printed and fired on the inside surface of rear win-
dow glass (Fig. 5) comprise an electrical parallel cir-
cuit. The electrically conductive lines are composed of
a silver-ceramic material which when fired on glass
becomes bonded to the glass and is highly resistant
to abrasion. It is possible however, that a break may
occur in an individual grid line resulting in no cur-
rent flow through the line. To detect breaks in grid
lines the following procedure is required:
(1) Turn ignition ON and turn control switch to
ON. The LED should come on.
(2) Using a DC voltmeter with 0-15 volt range,
contact terminal (B) with the negative lead of the
voltmeter. With the positive lead of the voltmeter,
contact terminal (A) (Fig. 5). The voltmeter should
read 10-14 volts. A lower voltage reading indicates a
poor connection in the feed or the ground circuit.
(3) With the negative lead of the voltmeter, contact
a good body ground point. The voltage reading should
not change.
(4) Connect the negative lead of the voltmeter to
terminal (B) and touch each grid line at Mid-Point
with the positive lead. A reading of:
²Approximately 6 volts indicates the line is OK.
²0 volts indicates a break in line between Mid-
Point (C) and terminal (A).
²10-14 volts indicates a break between Mid-Point
(C) and terminal (B).
Move the lead toward the break and voltage will
change as soon as the break is crossed. Refer to (Fig.
5).
REAR WINDOW DEFOGGER SWITCH
The rear window defogger switch may be tested in
the vehicle or out of the vehicle, on the bench.
IN-VEHICLE TESTING
(1) Remove the switch from the instrument panel
but leave the switch connected, refer to Group 8E-In-
strument Panel and Systems, Auxiliary Switch Bezel
Removal and Installation.
(2) Turn the ignition switch ON.
(3) Using a voltmeter, check for battery voltage at
Pin 1 and 2 (Fig. 3).
(a) If OK, go to Step 4.
(b) If NOT OK, check fuse 7 in the fuse block
and the 40 Amp cartridge fuse in the Power Distri-
bution Center (PDC). If fuses are OK, check wiring
circuit. Refer to Group 8W-Wiring Diagrams.
(4) Check Pin 5, with switch in the ON position
there should be battery voltage and no voltage in the
OFF position.(a) If OK, go to Step 5.
(b) If NOT OK, no voltage in the ON position or
voltage in the OFF position. Replace the switch.
(5) Press switch to ON position. The indicator
lamp should come on and remain on for approxi-
mately 10 minutes. If the indicator lamp fails to light
or no voltage is present for approximately 10 min-
utes. Replace Rear Window Defogger Switch. Refer to
Group 8E-Instrument Panel and Systems, Auxiliary
Switch Bezel Removal and Installation.
BENCH TESTING
(1) First remove switch. Refer to Group 8E-Instru-
ment Panel and Systems, Auxiliary Switch Bezel
Removal and Installation.
(2) With switch removed from vehicle, use a
jumper wire and connect a 12 volt supply to Pin 1
and 2. Using a third jumper wire, ground Pin 3.
Refer to (Fig. 4) and the Rear Window Defogger
Switch and Harness Connector Pin Call-Outs table.
(3) Follow the same procedures used for IN-VEHI-
CLE TESTING, except for step Step 2.
REAR WINDOW DEFOGGER SYSTEM
Electrically heated rear window defogger operation
can be checked in the vehicle in the following man-
ner:
(1) Turn the ignition switch to the ON position.
Fig. 3 Rear Window Defogger Switch Harness
Connector
REAR WINDOW DEFOGGER SWITCH AND
HARNESS CONNECTOR PIN CALL-OUTS
PIN FUNCTION
1 FUSED B+
2 FUSED IGNITION SWITCH OUTPUT
(RUN)
3 GROUND
4 PANEL LAMPS DRIVER
5 PANEL LAMPS DRIVER
8N - 2 ELECTRICALLY HEATED SYSTEMSPL

(2) Connect an ammeter in series with the battery.
Push the rear window defogger switch to the ON
position (Fig. 2). A distinct increase in amperage
draw should be noted.
(3) The rear window defogger operation can be
checked by feeling the glass. A distinct difference in
temperature between the grid lines and adjacent
clear glass can be detected in three to four minutes
of operation.
(4) Using a DC voltmeter, connect the negative
lead to Point B, and the positive lead to Point A (Fig.
5). The voltmeter should read 10-14 volts.(5) Step 2, Step 3 or Step 4 above will confirm sys-
tem operation. Indicator light illumination means
that there is power available at the switch output,
and does not necessarily verify system operation.
(6) If turning the switch ON produced no distinct
current draw on the ammeter the problem should be
isolated in the following manner:
(a) Confirm the ignition switch is ON.
(b) Ensure that the heated rear glass feed wire
is connected to the terminal or pigtail and that the
ground wire is in fact grounded.
(c) Ensure that the cartridge fuse and control
circuit fuse are OK and all electrical connections
are secure.
(7) When the above steps have been completed and
the system is still inoperative, one or more of the fol-
lowing is defective:
(a) Rear Window Defogger Switch.
(b) All rear window grid lines would have to be
broken or one of the feed wires are not connected
for the system to be inoperative.
(8) If turning the switch ON produces severe volt-
meter deflection, the circuit should be closely checked
for a shorting condition.
(9) If the system operation has been verified but
indicator lamp does not light, replace the switch.
(10) For detailed wiring information, refer to group
8W-Wiring Diagrams.
SERVICE PROCEDURES
GRID LINE AND TERMINAL REPAIR
WARNING: REPAIR KIT MAY CAUSE SKIN OR EYE
IRRITATION. CONTAINS EPOXY RESIN AND AMINE
TYPE HARDENER, HARMFUL IF SWALLOWED.
AVOID CONTACT WITH SKIN AND EYES. FOR SKIN,
WASH AFFECTED AREAS WITH SOAP AND WATER.
DO NOT TAKE INTERNALLY. IF TAKEN INTER-
NALLY, INDUCE VOMITING; CALL A PHYSICIAN
IMMEDIATELY. IF IN CONTACT WITH EYES, FLUSH
WITH PLENTY OF WATER. USE WITH ADEQUATE
VENTILATION. DO NOT USE NEAR FIRE OR FLAME.
CONTENTS CONTAIN 3 PERCENT FLAMMABLE
SOLVENTS.
KEEP OUT OF REACH OF CHILDREN.
The repair of the grid lines or the terminal is pos-
sible using the MopartRepair Package or equiva-
lent.
Fig. 4 Rear Window Defogger Switch Connector
Fig. 5 Rear Glass Grid Line Test - Typical
1 ± REAR WINDOW DEFOGGER
2 ± BUS BARS
3 ± VOLTAGE FEED ªAº
4 ± VOLTMETER
5 ± PICK-UP LEADS
6 ± C. H. M. S. L. TRIM COVER
7 ± PARCEL SHELF
8 ± GROUND ªBº
9 ± MID-POINT ªCº
PLELECTRICALLY HEATED SYSTEMS 8N - 3
DIAGNOSIS AND TESTING (Continued)

first turn) will cause all vehicle doors to unlock elec-
trically. When this feature is disabled, all vehicle
doors will be unlocked electrically upon the first turn
of a key cylinder to the UNLOCK position. The vehi-
cle is locked electrically by turning the key cylinder
to the LOCK position once, regardless of the state of
the double activation unlock feature.
POWER DOOR LOCKS
The Remote Keyless Entry (RKE) Module actuates
the power door lock relays when a door lock switch is
activated. If the door lock switch is pressed for longer
than eight consecutive seconds, the RKE module will
de-energize the door lock motors.
The system includes the rolling door locking fea-
ture. The vehicle is shipped with the system enabled.
When the system is disabled the door locks will work
by use of the door lock switches and the Remote Key-
less Entry system only. When the rolling door lock
system is enabled, the RKE module will automati-
cally lock all the vehicle doors when all of the follow-
ing conditions are met:
²All doors are closed
²The vehicle speed exceeds 15 +/- 1 mph.
²The throttle position sensor tip-in is greater
than 10 +/- 2 degrees.
The RKE module will automatically re-lock all
doors if the above conditions are met and if any of
the doors become ajar and then closed again.
The enabling/disabling of the rolling door lock fea-
ture is customer programmable, as well as program-
mable with the DRB IIItscan tool.
The power lock motors are also equipped with a
thermal protection system which prevents the motors
from burning out. The motors may chatter if they are
continuously activated.
CHILD PROTECTION LOCKS
The child protection locks are on the rear doors
only. The lock, when engaged, will disable the inside
door handle from opening the door. The lock is part
of the latch/lock assembly. The lock is engaged by
moving a lever that is located on the rearward inside
edge of the door.
DOOR LOCK INHIBIT
With the key in the ignition switch and the driver
door open, the Remote Keyless Entry (RKE) Modulewill ignore the command to lock the power door locks
via the interior driver door lock switch. Once the key
is removed, or the driver door is closed, the RKE
module will allow the power door locks to lock via the
interior door lock switches.
DIAGNOSIS AND TESTING
DOOR LOCK MOTOR
(1) Make certain battery is in normal condition
and fuses powering the RKE module aren't blown
before circuits are tested.
(2) To determine which motor is faulty, check each
individual door for electrical lock and unlock or dis-
connect the motor connectors one at a time, while
operating the door lock switch.
(3) In the event that none of the motors work, the
problem maybe caused by a shorted motor, a bad
switch or a bad relay internal to the RKE module.
Disconnecting a defective motor will allow the others
to work.
(4) To test an individual door lock motor, discon-
nect the electrical connector from the motor.
(5) To lock the door, connect a 12 volt power source
to one pin of the lock motor and a ground wire to the
other pin.
(6) To unlock the door, reverse the wire connec-
tions at the motor pin terminals.
(7) If these results are NOT obtained, replace the
motor.
DOOR LOCK SWITCH
(1) Remove the switch from its mounting location,
and disconnect from vehicle wiring harness. Refer to
Door Lock Switch Removal and Installation in this
section.
(2) Using an ohmmeter, refer to Door Lock Switch
Resistance Test table to determine if switch resis-
tance is correct in the Lock and Unlock switch posi-
tions. Refer to Group 8W-Wiring Diagrams for
harness connector pin-outs.
DOOR LOCK SWITCH RESISTANCE
SWITCH POSITION CONTINUITY BETWEEN RESISTANCE VALUE
LOCK 2 AND 3 1000V
UNLOCK 2 AND 3 249V
8P - 2 POWER LOCK SYSTEMSPL
DESCRIPTION AND OPERATION (Continued)

SERVICE PROCEDURES
DOUBLE ACTIVATION UNLOCK
The toggling of the double activation unlock fea-
ture (between enabled and disabled) can be per-
formed with the use of the DRB IIItscan tool, or by
the customer.
DRB lllTPROGRAMMING
When using the DRB IIItscan tool, select:
(1) ªTheft Alarmº
(2) ªVTSSº
(3) ªMiscellaneousº
and then the desired function.
CUSTOMER PROGRAMMING
(1) Open the driver door, sit in the driver seat, and
close the driver door.
(2) Turn the ignition switch to the RUN position
(without starting the vehicle) and then back to OFF.
Repeat this step three additional times (for a total of
four key ON/OFF cycles).
(3) Within ten seconds of switching the ignition
switch to the OFF position for the last time (at the
end of the fourth cycle in the above step), press the
driver interior door lock switch to UNLOCK.
(4) A single chime will be heard to verify that the
customer programmable toggle of the double activa-
tion unlock was successfully completed.
NOTE: When toggling the double activation unlock
feature (customer programmable), the toggle that
happens will be from the last state of the double
activation unlock. If the double activation unlock
feature was enabled, after the toggle process, it will
now be disabled and vice versa. There is no telltale
to inform you of which state the double activation
unlock feature is in.
ROLLING DOOR LOCKS
The toggling of the rolling door lock feature
(between enabled and disabled) can be performed
with the use of the DRB IIItscan tool or by the cus-
tomer.
DRB lllTPROGRAMMING
When using the DRB IIItscan tool, select:
(1) ªTheft Alarmº
(2) ªVTSSº(3) ªMiscellaneousº
and then the desired function.
CUSTOMER PROGRAMMING
(1) Open the driver door, sit in the driver seat, and
close the driver door.
(2) Turn the ignition switch to the RUN position
(without starting the vehicle) and then back to OFF.
Repeat this step three additional times (for a total of
four key ON/OFF cycles).
(3) Within ten seconds of switching the ignition
switch to the OFF position for the last time (at the
end of the fourth cycle in the above step), press the
driver interior door lock switch to LOCK.
(4) A single chime will be heard to verify that the
customer programmable toggle of the rolling door
locks was successfully completed.
NOTE: When toggling the rolling door locks (cus-
tomer programmable), the toggle that happens will
be from the last state of the rolling door locks. If
the rolling door locks were enabled, after the toggle
process, they will now be disabled and vice versa.
There is no telltale to inform you of which state the
rolling door locks are in.
REMOVAL AND INSTALLATION
DOOR LOCK MOTOR/LATCH
Refer to Group 23-Body, Front Door Latch Removal
and Installation.
DOOR LOCK SWITCH
REMOVAL
(1) Remove front door trim panel, refer to Group
23-Body, for Front Door Trim Panel Removal and
Installation.
(2) Disconnect wire connector.
(3) Remove two attaching screws.
(4) Remove the switch.
INSTALLATION
For installation, reverse the above procedures.
REMOTE KEYLESS ENTRY (RKE) MODULE
Refer to RKE Module Removal and Installation
under Remote Keyless Entry in this section.
PLPOWER LOCK SYSTEMS 8P - 3

(1) With the ignition switch in RUN position, press
and hold the transmitter Unlock button (Fig. 1) for a
minimum of 4 seconds to a maximum of 10 seconds.
(2) Within the 4-10 second range, depress the
transmitter Lock button (Fig. 1). A chime will be
heard to indicate a successful toggle, at which time
the buttons may be released.
SWITCHING OPERATING MODES/
CONFIGURING A NEW MODULE
Refer to Group 8Q-Vehicle Theft/Security Systems,
Switching Operating Modes/Configuring A New Mod-
ule under Service Procedures.
TRANSMITTER PROGRAMMING
The Remote Keyless Entry transmitters can be
programmed with the use of the DRB IIItscan tool
or by the customer.
DRB lllTPROGRAMMING
When using the DRB IIItscan tool, select:
(1) ªTheft Alarmº
(2) ªVTSSº
(3) ªMiscellaneousº
and then the desired function.
CUSTOMER PROGRAMMING
For a customer to be able to program RKE trans-
mitters themselves, at least one RKE transmitter
must be programmed already. This procedure is to
add additional transmitters. If all transmitters are
lost, the DRB IIItscan tool must be used to program
the new transmitters.
(1) With the ignition switch in RUN position, press
and hold the transmitter Unlock button (Fig. 1) for a
minimum of 4 seconds to a maximum of 10 seconds.
(2) Within the 4-10 second range, depress the
transmitter Lock button (Fig. 1). A chime will be
heard to indicate successful toggle, at which time the
buttons may be released.
(3) Turn the ignition switch off to exist transmitter
programming mode.
REMOVAL AND INSTALLATION
DECK LID RELEASE SOLENOID
REMOVAL
(1) Disconnect and isolate the battery negative
cable (Fig. 2).
(2) Raise deck lid to the full up position.
(3) Unplug connector from solenoid.
(4) Remove two solenoid mounting screws.
(5) Remove solenoid from vehicle.
INSTALLATION
For installation, reverse the above procedures.
Adjust the deck lid latch and striker so that the deck
lid latches with a moderate slam, and so that the
deck lid releases properly whenever the power deck
lid release is activated.
REMOTE KEYLESS ENTRY MODULE
REMOVAL
(1) Disconnect and isolate the battery negative
cable (Fig. 2).
(2) Remove the instrument panel top cover. Refer
to Group 8E-Instrument Panel and Systems, Instru-
ment Pane Top Cover Removal and Installation.
(3) Remove the two screws holding the RKE mod-
ule to the instrument panel assembly (Fig. 3).
(4) Slide locking tab of the wiring connector side-
ways to unlock tab, and remove connector from RKE
module.
(5) Remove RKE module from vehicle.
NOTE: When replacing a faulty RKE Module, the
replacement module must be configured with the
DRB lllTscan tool for proper operation. Refer to
Group 8Q-Vehicle Theft/Security Systems, Switch-
ing Operating Modes/Configuring a New Module
under Service Procedures. Additionally, all transmit-
ters must be reprogrammed to the new RKE mod-
ule.
Fig. 2 Battery Negative Cable Remove/Install
1 ± NEGATIVE CABLE
2 ± NEGATIVE BATTERY POST
8P - 6 POWER LOCK SYSTEMSPL
SERVICE PROCEDURES (Continued)

VEHICLE THEFT/SECURITY SYSTEM
TABLE OF CONTENTS
page page
DESCRIPTION AND OPERATION
INTRODUCTION..........................1
VEHICLE THEFT/SECURITY SYSTEM (VTSS)...1
SENTRY KEY IMMOBILIZER SYSTEM (SKIS)...2
SENTRY KEY IMMOBILIZER MODULE
(SKIM)................................2
SENTRY KEY IMMOBILIZER SYSTEM
TRANSPONDER.........................3
SENTRY KEY IMMOBILIZER SYSTEM
INDICATOR LAMP.......................4
TRIGGERING THE VTSS....................4
DIAGNOSIS AND TESTING
SENTRY KEY IMMOBILIZER SYSTEM.........4
VEHICLE THEFT/SECURITY SYSTEM (VTSS)...5SERVICE PROCEDURES
SENTRY KEY IMMOBILIZER SYSTEM
INITIALIZATION.........................5
SENTRY KEY IMMOBILIZER SYSTEM
TRANSPONDER PROGRAMMING...........5
SWITCHING OPERATING MODES/
CONFIGURING A NEW MODULE............6
REMOVAL AND INSTALLATION
DOOR CYLINDER LOCK SWITCH.............7
HOOD AJAR SWITCH......................7
SENTRY KEY IMMOBILIZER MODULE
(SKIM)................................7
VEHICLE THEFT/SECURITY SYSTEM DECK
LID SECURITY (KNOCK OUT) SWITCH.......8
DESCRIPTION AND OPERATION
INTRODUCTION
The Vehicle Theft/Security System (VTSS) is
designed to protect against whole vehicle theft. The
system monitors vehicle doors, hood, trunk key cylin-
der, and ignition for unauthorized operation.
The VTSS activates:
²Sounding of the horn.
²Flashing of the park lamps.
²Flashing of the headlamps.
The RKE Module has three modes of operation
including customer usage mode, dealer lot storage
mode, and shipping mode. The customer usage mode
provides full functionality of the module and is the
mode in which the RKE Module should be operating
when used by the customer. Dealer lot storage mode
and shipping mode are reduced power modes meant
to extend vehicle battery life during shipping and
storage in the dealer lot. Dealer lot storage mode pro-
vides limited VTSS and power door lock functions,
and disables the Remote Keyless Entry (RKE) func-
tions. This mode is intended to be used when the
vehicle is on the dealer lot to provide VTSS coverage
of the vehicle while minimizing battery drain. Ship-
ping mode disables all normal functions of the mod-
ule with the exception of communications over the
vehicle's PCI bus, and is intended to be used when
the vehicle is shipped from the assembly plant. The
dealer must remove the module from shipping modeand place it into either the dealer lot storage or cus-
tomer usage modes of operation.
NOTE: The dealer must remove the module from
ªShip Modeº and place the RKE Module into either
the ªDealer Lotº storage or ªCustomer Usageº
modes of operation after receiving the vehicle from
the assembly plant. Refer to Switching Operating
Modes/Configuring a New Module under Service
Procedures in this section.
VEHICLE THEFT/SECURITY SYSTEM (VTSS)
In the customer usage mode of operation, the sys-
tem is armed when the vehicle is locked using the:
²Power door lock switches.
²Remote Keyless Entry (RKE) transmitter.
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 (excluding
the hood and trunk key cylinder), the system will
arm. After 16 seconds, the LED will continue to flash
at a slower rate indicating the system is armed.
If the hood ajar switch and/or trunk key cylinder
switch(s) are not sensed by the system, the indicator
LED will remain lit during the arming process,
although the system will still arm. If the VTSS indi-
cator does not illuminate at all upon door closing it
indicates that the system is not arming.
PLVEHICLE THEFT/SECURITY SYSTEM 8Q - 1

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.
In the dealer lot storage mode of operation, all of
the above descriptions of the VTSS are true with the
following exceptions:
²Remote Keyless Entry functions are disabled,
and cannot be used for arming/disarming the VTSS.
²The VTSS indicator is non-operational.
SENTRY KEY IMMOBILIZER SYSTEM (SKIS)
The Sentry Key Immobilizer System (SKIS) is
designed to provide passive protection against unau-
thorized vehicle use by preventing the engine from
operating while the system is armed. The primary
components of this system are the Sentry Key Immo-
bilizer Module (SKIM), the Sentry Key transponder,
the Vehicle Theft/Security System (VTSS) indicator
LED, and the Powertrain Control Module (PCM).
The SKIM is installed on the steering column near
the ignition lock cylinder. The transponder is located
under the molded rubber cap on the head of the igni-
tion key. The VTSS indicator LED is located in the
instrument cluster.
The SKIS includes three valid Sentry Key tran-
sponders from the factory, one being a valet key. This
is so the customer can self program new keys if one
is lost. If the customer wishes, additional non-coded
blank Sentry Keys are available. These blank keys
can be cut to match a valid ignition key, but the
engine will not start unless the key transponder is
also programmed to the vehicle. The SKIS will recog-
nize no more than eight valid Sentry Key transpon-
ders at any one time.
The SKIS performs a self-test each time the igni-
tion switch is turned to the ON position, and will
store Diagnostic Trouble Codes (DTC's) if a system
malfunction is detected. The SKIS can be diagnosed,
and any stored DTC can be retrieved using a DRB
llltscan tool as described in the proper Body Diag-
nostic Procedures Manual.
SENTRY KEY IMMOBILIZER MODULE (SKIM)
The Sentry Key Immobilizer Module (SKIM) (Fig.
1) contains a Radio Frequency (RF) transceiver and a
central processing unit, which includes the Sentry
Key Immobilizer System (SKIS) program logic. The
SKIS programming enables the SKIM to programand retain in memory the codes of at least two, but
no more than eight electronically coded Sentry Key
transponders. The SKIS programming also enables
the SKIM to communicate over the Programmable
Communication Interface (PCI) bus network with the
Powertrain Control Module (PCM), the instrument
cluster and/or the DRB IIItscan tool.
The SKIM transmits and receives RF signals
through a tuned antenna enclosed within a molded
plastic ring formation that is integral to the SKIM
housing. When the SKIM is properly installed on the
steering column, the antenna ring is oriented around
the circumference of the ignition lock cylinder hous-
ing (Fig. 1). This antenna ring must be located
within eight millimeters (0.31 inches) of the Sentry
Key in order to ensure proper RF communication
between the SKIM and the Sentry Key transponder.
For added system security, each SKIM is pro-
grammed with a unique ªSecret Keyº code and a
security code. The SKIM keeps the ªSecret Keyº code
in memory and sends the code over the CCD data
bus to the PCM, which also keeps this code in its
memory. The SKIM also sends the ªSecret Keyº code
to each of the programmed Smart Key transponders.
The security code is used by the assembly plant to
access the SKIS for initialization, or by the dealer
technician to access the system for service. The
SKIM also stores in its memory the Vehicle Identifi-
cation Number (VIN), which it learns through a PCI
bus message from the PCM during initialization.
The SKIM and the PCM both use software that
includes a rolling code algorithm strategy, which
helps to reduce the possibility of unauthorized SKIS
Fig. 1 Sentry Key Immobilizer Module (SKIM)
Location
1 ± STEERING COLUMN
2 ± SKIM ELECTRICAL CONNECTOR
3 ± SKIM
8Q - 2 VEHICLE THEFT/SECURITY SYSTEMPL
DESCRIPTION AND OPERATION (Continued)

disarming. The rolling code algorithm ensures secu-
rity by preventing an override of the SKIS through
the unauthorized substitution of the SKIM or the
PCM. However, the use of this strategy also means
that replacement of either the SKIM or the PCM
units will require a system initialization procedure to
restore system operation.
When the ignition switch is turned to the ON or
START positions, the SKIM transmits an RF signal
to excite the Sentry Key transponder. The SKIM then
listens for a return RF signal from the transponder
of the Sentry Key that is inserted in the ignition lock
cylinder. If the SKIM receives an RF signal with
valid ªSecret Keyº and transponder identification
codes, the SKIM then sends a ªvalid keyº message to
the PCM over the PCI bus. If the SKIM receives an
invalid RF signal or no response, it sends ªinvalid
keyº messages to the PCM. The PCM will enable or
disable engine operation based upon the status of the
SKIM messages.
The SKIM also sends messages to the instrument
cluster over the PCI bus network to control the VTSS
indicator LED. The SKIM sends messages to the
instrument cluster to turn the LED on for about
three seconds when the ignition switch is turned to
the ON position as a bulb test. After completion of
the bulb test, the SKIM sends bus messages to keep
the LED off for a duration of about one second. Then
the SKIM sends messages to turn the LED on or off
based upon the results of the SKIS self-tests. If the
VTSS indicator LED comes on and stays on after the
bulb test, it indicates that the SKIM has detected a
system malfunction and/or that the SKIS has become
inoperative.
If the SKIM detects an invalid key when the igni-
tion switch is turned to the ON position, it sends
messages to the instrument cluster to flash the VTSS
indicator LED. The SKIM can also send messages to
the instrument cluster to flash the LED and to gen-
erate a single audible chime tone. These functions
serve as an indication to the customer that the SKIS
has been placed in its ªCustomer Learnº program-
ming mode. See Sentry Key Immobilizer System
Transponder Programming in this group for more
information on the ªCustomer Learnº programming
mode.
For diagnosis or initialization of the SKIM and the
PCM, a DRB IIItscan tool and the proper Body
Diagnostic Procedures Manual are required. The
SKIM cannot be repaired, and if faulty or damaged,
the unit must be replaced.
SENTRY KEY IMMOBILIZER SYSTEM
TRANSPONDER
The Sentry Key Immobilizer System (SKIS) uses a
transponder that is integral to each of three ignitionkey that are supplied with the vehicle when it is
shipped from the factory. The transponder chip is
insulated within a nylon mount inserted in the head
of the key, and invisible beneath a molded rubber cap
(Fig. 2).
Each Sentry Key transponder has a unique tran-
sponder identification code programmed into it by the
manufacturer. The Sentry Key Immobilizer Module
(SKIM) has a unique ªSecret Keyº code programmed
into it by the manufacturer. When a Sentry Key
transponder is programmed into the memory of the
SKIM, the SKIM learns the transponder identifica-
tion code from the transponder, and the transponder
learns the ªSecret Keyº code from the SKIM. Each of
these codes is stored within the transponder and in
the nonvolatile memory of the SKIM. Therefore,
blank keys for the SKIS must be programmed by and
into the SKIM, in addition to being cut to match the
mechanical coding of the ignition lock cylinder. See
Sentry Key Immobilizer System Transponder Pro-
gramming in this group for more information.
The Sentry Key transponder is within the range of
the SKIM transceiver antenna ring when it is
inserted in the ignition lock cylinder. When the igni-
tion switch is turned to the START or RUN positions,
the SKIM transceiver issues a Radio Frequency (RF)
signal that excites the transponder chip. The tran-
sponder chip responds by issuing an RF signal con-
taining its transponder identification code and the
ªSecret Keyº code. The SKIM transceiver compares
the transponder codes with the codes stored in its
Fig. 2 Sentry Key Immobilizer Transponder
1 ± MOLDED CAP
2 ± TRANSPONDER
3 ± MOLDED CAP REMOVED
4 ± SENTRY KEY
PLVEHICLE THEFT/SECURITY SYSTEM 8Q - 3
DESCRIPTION AND OPERATION (Continued)