Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Dodge Durango 1998-2000 Approved Dodge Durango 2000 00dn_8Q
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DN VEHICLE THEFT/SECURITY SYSTEMS 8Q - 1
VEHICLE THEFT/SECURITY SYSTEMS
TABLE OF CONTENTS
page page
GENERAL INFORMATION HORN RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SECURITY LAMP . . . . . . . . . . . . . . . . . . . . . . . . . 4
VEHICLE THEFT SECURITY SYSTEM. . . . . . . . . . 1 DIAGNOSIS AND TESTING
ENABLING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 VEHICLE THEFT SECURITY SYSTEM. . . . . . . . . . 4
ARMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 DOOR LOCK CYLINDER SWITCH. . . . . . . . . . . . . 4
DISARMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 LIFTGATE LOCK CYLINDER SWITCH . . . . . . . . . . 4
POWER-UP MODE . . . . . . . . . . . . . . . . . . . . . . . . 2 RELAYS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
TAMPER ALERT . . . . . . . . . . . . . . . . . . . . . . . . . . 2 REMOVAL AND INSTALLATION
DESCRIPTION AND OPERATION DOOR AJAR SWITCH . . . . . . . . . . . . . . . . . . . . . . 5
CENTRAL TIMER MODULE . . . . . . . . . . . . . . . . . 2 LIFTGATE AJAR SWITCH . . . . . . . . . . . . . . . . . . . 5
DOOR AJAR SWITCH . . . . . . . . . . . . . . . . . . . . . . 3 DOOR LOCK CYLINDER SWITCH. . . . . . . . . . . . . 5
LIFTGATE AJAR SWITCH . . . . . . . . . . . . . . . . . . . 3 LIFTGATE LOCK CYLINDER SWITCH . . . . . . . . . . 5
DOOR LOCK CYLINDER SWITCH. . . . . . . . . . . . . 3 HEADLAMP RELAY. . . . . . . . . . . . . . . . . . . . . . . . 6
LIFTGATE LOCK CYLINDER SWITCH . . . . . . . . . . 3 HORN RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
HEADLAMP RELAY. . . . . . . . . . . . . . . . . . . . . . . . 3
GENERAL INFORMATION a DRB scan tool. Refer to the Vehicle Theft Security
System menu item on the DRB scan tool for the pro-
INTRODUCTION cedures.
The Vehicle Theft Security System (VTSS) is an The VTSS engine no-run feature is disabled when
available factory-installed option on this model. Refer it is shipped from the factory. This is done by pro-
to 8W-39 - Vehicle Theft Security System in Group gramming within the Powertrain Control Module
8W - Wiring Diagrams for complete circuit descrip- (PCM). The logic in the PCM prevents the VTSS
tions and diagrams. engine no-run feature from arming until the engine
start counter within the PCM sees twenty engine
VEHICLE THEFT SECURITY SYSTEM starts. The VTSS no-run feature must be enabled
when the vehicle is received from the assembly plant.
The Vehicle Theft Security System (VTSS) is
Once the VTSS engine no-run feature has been
designed to provide perimeter protection against
enabled, it cannot be disabled unless the PCM is
unauthorized use or tampering by monitoring the
replaced with a new unit. The same VTSS engine no-
vehicle doors and the ignition system. If unautho-
run feature enable logic will apply anytime the PCM
rized use or tampering is detected, the system
is replaced with a new unit.
responds by sounding the horn, flashing the head-
lamps, and providing an engine no-run feature.
Following are general descriptions of the features ARMING
and major components of the VTSS. Refer to the Passive arming of the Vehicle Theft Security Sys-
owner's manual in the vehicle glove box for more tem (VTSS) occurs when the vehicle is exited with
information on the features, use and operation of the the key removed from the ignition switch, the head-
vehicle theft security system. lamps are turned off, and the doors and liftgate are
locked while they are open using the power lock
ENABLING switch or locked after they are closed by turning
If the vehicle is so equipped, the Vehicle Theft either front door lock cylinder or the liftgate lock cyl-
Security System (VTSS) feature is enabled in the inder to the lock position using the key. Passive arm-
high-line Central Timer Module (CTM) before the ing will not begin until all the doors and the liftgate
vehicle is shipped from the factory. However, if a are closed. The power lock switch will not function if
vehicle with VTSS requires CTM replacement, the the key is in the ignition switch or the headlamps
VTSS feature must be enabled in the new CTM using are turned on with the driver side front door open.
8Q - 2 VEHICLE THEFT/SECURITY SYSTEMS DN
GENERAL INFORMATION (Continued)
The VTSS will not arm if the doors are locked using out (about fifteen minutes). This feature alerts the
the key in the lock cylinder or using the mechanical vehicle operator that the VTSS was activated while
lock button. the vehicle was unattended.
Active arming of the VTSS occurs when the
Remote Keyless Entry (RKE) transmitter is used to
lock the vehicle. For active arming to occur, the doors DESCRIPTION AND OPERATION
and liftgate must be closed and the ignition switch
must be in the Off position when the RKE transmit- CENTRAL TIMER MODULE
ter Lock button is depressed. However, once the Two versions of the Central Timer Module (CTM)
VTSS arming process has been completed, the igni- are available on this vehicle, a base version and a
tion switch can be turned to the Accessory position high-line version. The base version of the CTM is
without triggering the alarm. used on base models of the vehicle. The base version
Once the VTSS begins passive or active arming, of the CTM combines the functions of a chime/buzzer
the security lamp in the instrument cluster will flash module, an intermittent wipe module and an illumi-
rapidly for about fifteen seconds. This indicates that nated entry module into a single unit. The base CTM
the VTSS arming is in progress. Turning a key in the also uses inputs from the door ajar switches, the
ignition switch, opening a door or the liftgate, or headlamp switch and the key-in ignition switch to
unlocking a door or the liftgate by any means during control the output to the dome lamp circuits, which
the fifteen second arming process will cause the secu- allows the base CTM to provide load shedding to help
rity lamp to stop flashing and the arming process to protect the battery from becoming discharged.
abort. Once the fifteen second arming function is suc- The high-line version of the CTM is used on high-
cessfully completed, the security lamp will flash at a line vehicles. The high-line CTM provides all of the
slower rate to indicate that the VTSS is armed. functions of the base version CTM, but also is used to
control and integrate many of the additional elec-
DISARMING tronic functions and features included on the high-
Passive disarming of the Vehicle Theft Security line models. The high-line version of the CTM
System (VTSS) occurs when the vehicle is unlocked contains a central processing unit and interfaces with
using the key to unlock either front door or the lift- other modules in the vehicle on the Chrysler Colli-
gate. Active disarming of the VTSS occurs when the sion Detection (CCD) data bus network.
vehicle is unlocked by depressing the Unlock button The CCD data bus network allows the sharing of
of the Remote Keyless Entry (RKE) transmitter. sensor information. This helps to reduce wire har-
Once the alarm has been activated (horn sounding, ness complexity, reduce internal controller hardware,
headlamps flashing, and the engine no-run feature), and reduce component sensor current loads. At the
either disarming method will also deactivate the same time, this system provides increased reliability,
alarm. enhanced diagnostics, and allows the addition of
many new feature capabilities.
POWER-UP MODE One of the features that the high-line CTM sup-
When the armed Vehicle Theft Security System ports and controls is the Vehicle Theft Security Sys-
(VTSS) senses that the battery has been disconnected tem (VTSS). In the VTSS, the CTM receives hard-
and reconnected, it enters its power-up mode. In the wired inputs from the door and liftgate ajar, door and
power-up mode the alarm system remains armed fol- liftgate lock cylinder, and ignition switches. The pro-
lowing a battery failure or disconnect. If the VTSS gramming in the CTM allows it to process the infor-
was armed prior to a battery disconnect or failure, mation from these inputs and send control outputs to
the system will have to be actively or passively dis- energize or de-energize the headlamp (or security)
armed after the battery is reconnected. relay, horn relay, and the security lamp. The CTM
The power-up mode will also apply if the battery also sends CCD data bus messages to the Powertrain
goes dead while the system is armed, and battery Control Module (PCM) to control the engine no-run
jump-starting is attempted. The engine no-run fea- feature of the VTSS
ture will prevent the engine from starting until the The high-line CTM also contains the receiver and
alarm system has been actively or passively dis- control logic for the power lock and Remote Keyless
armed. Entry (RKE) systems, which are integrated into the
arming, disarming, and triggering functions of the
TAMPER ALERT VTSS.
The Vehicle Theft Security System (VTSS) tamper Both versions of the CTM are mounted under the
alert will sound the horn three times upon disarm- passenger side end of the instrument panel, outboard
ing, if the alarm was triggered and has since timed- of the instrument panel glove box opening. Refer to
Central Timer Module in the Removal and Installa-
DN VEHICLE THEFT/SECURITY SYSTEMS 8Q - 3
DESCRIPTION AND OPERATION (Continued)
tion section of Group 8E - Instrument Panel Systems this input and its internal programming to control
for the service procedures. the proper Vehicle Theft Security System (VTSS) and
For diagnosis of the high-line version of the CTM power lock system outputs.
or of the CCD data bus, a DRB scan tool and the
proper Diagnostic Procedures manual are recom- LIFTGATE LOCK CYLINDER SWITCH
mended. The CTM cannot be repaired and, if faulty
or damaged, it must be replaced. DESCRIPTION
The liftgate lock cylinder switch is mounted to the
DOOR AJAR SWITCH back of the liftgate key lock cylinder inside the lift-
The door ajar switches are integral to the door gate. It is a resistor multiplexed momentary switch
latches on each door. The switches close a path to that is hard wired between a body ground and the
ground for the Central Timer Module (CTM) when a Central Timer Module (CTM) through the liftgate
door is opened, and open the ground path when a wire harness. This switch is driven by the key lock
door is closed. cylinder and contains three internal resistors. One
The door ajar switches cannot be repaired and, if resistor is used for the neutral switch position, one
faulty or damaged, the door latch unit must be for the lock position and one for the unlock position.
replaced. The liftgate lock cylinder switch cannot be adjusted
or repaired and, if faulty or damaged, it must be
LIFTGATE AJAR SWITCH replaced. For complete circuit diagrams, refer to
The liftgate ajar switch is integral to the latch on Vehicle Theft Security System in the Contents of
the liftgate. The switch closes a path to ground for Group 8W - Wiring Diagrams.
the Central Timer Module (CTM) when the liftgate is
opened, and opens the ground path when the liftgate OPERATION
is closed. The liftgate lock cylinder switch is actuated by the
The liftgate ajar switch cannot be repaired and, if key lock cylinder when the key is inserted in the lock
faulty or damaged, the liftgate latch unit must be cylinder and turned to the lock or unlock positions.
replaced. The liftgate lock cylinder switch closes a path to
ground through one of three internal resistors for the
DOOR LOCK CYLINDER SWITCH CTM when the liftgate key lock cylinder is in the
lock, unlock or neutral positions. The CTM reads the
DESCRIPTION switch status through an internal pull-up, then uses
The door lock cylinder switches are mounted to the this input and its internal programming to control
back of the key lock cylinder inside each front door. the proper Vehicle Theft Security System (VTSS) and
They are resistor multiplexed momentary switches power lock system outputs.
that are hard wired between a body ground and the
Central Timer Module (CTM) through the front door HEADLAMP RELAY
wire harnesses. These switches are driven by the key The headlamp (or security) relay is a International
lock cylinders and contain three internal resistors. Standards Organization (ISO) micro-relay. The termi-
One resistor is used for the neutral switch position, nal designations and functions are the same as a con-
one for the lock position and one for the unlock posi- ventional ISO relay. However, the micro-relay
tion. terminal orientation (or footprint) is different, cur-
The door lock cylinder switches cannot be adjusted rent capacity is lower, and the relay case dimensions
or repaired and, if faulty or damaged, they must be are smaller than those of the conventional ISO relay.
replaced. For complete circuit diagrams, refer to The headlamp relay is a electromechanical device
Vehicle Theft Security System in the Contents of that switches battery current to the headlamps when
Group 8W - Wiring Diagrams. the high-line Central Timer Module (CTM) grounds
the relay coil. See Headlamp Relay in the Diagnosis
OPERATION and Testing section of this group for more informa-
The door lock cylinder switches are actuated by the tion.
key lock cylinder when the key is inserted in the lock The headlamp relay is located in the Power Distri-
cylinder and turned to the lock or unlock positions. bution Center (PDC), behind the battery on the left
The door lock cylinder switch closes a path to ground side of the engine compartment.
through one of three internal resistors for the CTM The headlamp relay cannot be repaired and, if
when the front door key lock cylinder is in the lock, faulty or damaged, it must be replaced.
unlock or neutral positions. The CTM reads the
switch status through an internal pull-up, then uses
8Q - 4 VEHICLE THEFT/SECURITY SYSTEMS DN
DESCRIPTION AND OPERATION (Continued)
HORN RELAY The Vehicle Theft Security System (VTSS) and the
The horn relay is a International Standards Orga- Chrysler Collision Detection (CCD) data bus network
nization (ISO) micro-relay. The terminal designations should be diagnosed using a DRB scan tool and the
and functions are the same as a conventional ISO proper Diagnostic Procedures manual. The DRB will
relay. However, the micro-relay terminal orientation provide confirmation that the data bus is functional,
(or footprint) is different, current capacity is lower, that the high-line Central Timer Module (CTM) is
and the relay case dimensions are smaller than those receiving and sending the proper messages on the
of the conventional ISO relay. data bus, that the CTM is receiving the proper hard-
The horn relay is a electromechanical device that wired inputs and sending the proper hard-wired out-
switches battery current to the horn when the horn puts, and that the Powertrain Control Module (PCM)
switch or the high-line Central Timer Module (CTM) is receiving the data bus messages from the CTM.
grounds the relay coil. Refer to Relays in the Diag- Refer to the Vehicle Theft Security System menu
nosis and Testing section of this group for more infor- item on the DRB scan tool for the procedures. Refer
mation. to 8W-39 - Vehicle Theft Security System in Group
The horn relay is located in the Junction Block 8W - Wiring Diagrams for complete circuit descrip-
(JB), on the left end of the instrument panel in the tions and diagrams.
passenger compartment. See the fuse and relay lay-
out label on the inside of the fuse access panel for DOOR LOCK CYLINDER SWITCH
relay identification and location. Refer to Vehicle Theft Security System in the
If a problem is encountered with a continuously index of this service manual for the location of com-
sounding horn, it can usually be quickly resolved by plete door lock cylinder switch wiring diagrams.
removing the horn relay from the JB until further (1) Disconnect the door lock cylinder switch wire
diagnosis is completed. harness connector from the door wire harness con-
The horn relay cannot be repaired and, if faulty or nector.
damaged, it must be replaced. (2) Using an ohmmeter, perform the switch resis-
tance checks between the two cavities of the door
SECURITY LAMP lock cylinder switch wire harness connector. Actuate
The security lamp is located within the instrument the switch by rotating the key in the door lock cylin-
cluster on the instrument panel. The security lamp is der to test for the proper resistance values in each of
illuminated by a red Light-Emitting Diode (LED) the three switch positions, as shown in the Door Lock
that is integral to the instrument cluster circuit Cylinder Switch chart.
board. The security lamp receives fused battery feed
DOOR LOCK CYLINDER SWITCH
at all times and is grounded by the high-line Central
Timer Module (CTM) to give a visual indication of Switch Position
Resistance
the Vehicle Theft Security System (VTSS) arming Driver Side Passenger Side
status. Neutral Neutral 12 Kilohms
The security lamp cannot be repaired and, if faulty
or damaged, the instrument cluster unit must be Lock (Counter
Lock (Clockwise) 644 Ohms
replaced. Refer to Instrument Cluster in the Removal Clockwise)
and Installation section of Group 8E - Instrument Unlock (Counter Unlock
1565 Ohms
Panel Systems for the service procedures. Clockwise) (Clockwise)
DIAGNOSIS AND TESTING (3) If a door lock cylinder switch fails any of the
resistance tests, replace the faulty switch as
VEHICLE THEFT SECURITY SYSTEM required.
WARNING: ON VEHICLES EQUIPPED WITH AIR- LIFTGATE LOCK CYLINDER SWITCH
BAGS, REFER TO GROUP 8M - PASSIVE Refer to Vehicle Theft Security System in the
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY index of this service manual for the location of com-
STEERING WHEEL, STEERING COLUMN, OR plete liftgate lock cylinder switch wiring diagrams.
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR (1) Disconnect the likftgate lock cylinder switch
SERVICE. FAILURE TO TAKE THE PROPER PRE- wire harness connector from the liftgate wire harness
CAUTIONS COULD RESULT IN ACCIDENTAL AIR- connector.
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
DN VEHICLE THEFT/SECURITY SYSTEMS 8Q - 5
DIAGNOSIS AND TESTING (Continued)
(2) Using an ohmmeter, perform the switch resis-
tance checks between the two cavities of the liftgate
lock cylinder switch wire harness connector. Actuate
the switch by rotating the key in the liftgate lock cyl-
inder to test for the proper resistance values in each
of the three switch positions, as shown in the Lift-
gate Lock Cylinder Switch chart.
TERMINAL LEGEND
LIFTGATE LOCK CYLINDER SWITCH NUMBER IDENTIFICATION
30 COMMON FEED
Switch Position Resistance 85 COIL GROUND
86 COIL BATTERY
87 NORMALLY OPEN
87A NORMALLY CLOSED
Neutral 12 Kilohms
Fig. 1 Relay Terminals
Lock (Counter Clockwise) 644 Ohms
Unlock (Clockwise) 1565 Ohms REMOVAL AND INSTALLATION
DOOR AJAR SWITCH
(3) If a liftgate lock cylinder switch fails any of the The door ajar switch is integral to the door latch
resistance tests, replace the faulty switch as unit. If the door ajar switch is faulty or damaged, the
required. entire door latch unit must be replaced. Refer to
Group 23 - Body for the door latch service proce-
RELAYS dures.
The headlamp (or security) and horn relays are
located in the Power Distribution Center (PDC) in LIFTGATE AJAR SWITCH
the engine compartment. Each of these relays can be The liftgate ajar switch is integral to the liftgate
tested as described in the following procedure, how- latch unit. If the liftgate ajar switch is faulty or dam-
ever the circuits they are used in do vary. To test the aged, the entire liftgate latch unit must be replaced.
relay circuits, refer to the circuit descriptions and Refer to Group 23 - Body for the liftgate latch service
diagrams in 8W-39 - Vehicle Theft Security System procedures.
in Group 8W - Wiring Diagrams.
DOOR LOCK CYLINDER SWITCH
WARNING: ON VEHICLES EQUIPPED WITH AIR-
(1) Disconnect and isolate the battery negative
BAGS, REFER TO GROUP 8M - PASSIVE
cable.
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
(2) Remove the door outside latch handle mount-
STEERING WHEEL, STEERING COLUMN, OR
ing hardware and linkage from the inside of the door.
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
Refer to Group 23 - Body for the procedures.
SERVICE. FAILURE TO TAKE THE PROPER PRE-
(3) From the outside of the door, pull the door out-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
side latch handle out far enough to access the door
BAG DEPLOYMENT AND POSSIBLE PERSONAL
lock cylinder switch (Fig. 2).
INJURY.
(4) Disengage the door lock cylinder switch from
Remove the relay (Fig. 1) from the PDC as the back of the lock cylinder.
described in this group to perform the following tests: (5) Unplug the door lock cylinder switch wire har-
(1) A relay in the de-energized position should ness connector.
have continuity between terminals 87A and 30, and (6) Disengage the retainers that secure the door
no continuity between terminals 87 and 30. If OK, go lock cylinder switch wire harness to the inner door
to Step 2. If not OK, replace the faulty relay. panel.
(2) Resistance between terminals 85 and 86 (elec- (7) Remove the door lock cylinder switch from the
tromagnet) should be 75 5 ohms. If OK, go to Step door.
3. If not OK, replace the faulty relay. (8) Reverse the removal procedures to install.
(3) Connect a battery to terminals 85 and 86.
There should now be continuity between terminals LIFTGATE LOCK CYLINDER SWITCH
30 and 87, and no continuity between terminals 87A (1) Disconnect and isolate the battery negative
and 30. If OK, test the relay circuits. If not OK, cable.
replace the faulty relay. (2) Remove the trim panel from the liftgate inner
panel. Refer to Group 23 - Body for the procedures.
8Q - 6 VEHICLE THEFT/SECURITY SYSTEMS DN
REMOVAL AND INSTALLATION (Continued)
(4) Unplug the liftgate lock cylinder switch wire
harness connector.
(5) Remove the liftgate lock cylinder switch from
the liftgate.
(6) Reverse the removal procedures to install.
HEADLAMP RELAY
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO GROUP 8M - PASSIVE
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING WHEEL, STEERING COLUMN, OR
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the cover from the Power Distribution
Fig. 2 Door Lock Cylinder Switch Remove/Install - Center (PDC) (Fig. 4).
Typical
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