Dodge 2000 DURANGO Service Manual page 459

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DESCRIPTION AND OPERATION (Continued)
depressed a second time. A vehicle speed of about 24
kilometers-per-hour (15 miles-per-hour) will also can-
cel the panic event.
• A central locking feature. Central locking allows
all the doors and the liftgate to be locked when a key
is used in either front door lock cylinder to lock
either front door. Similarly, central locking will also
unlock all the doors and the liftgate when the key is
rapidly cycled twice to the unlock position in either
front door lock cylinder. This feature uses inputs
from the two door lock cylinder switches, which are
components of the Vehicle Theft Security System
(VTSS). Refer to Group 8Q - Vehicle Theft/Security
Systems for more information on the door lock cylin-
der switches.
• An enhanced accident response feature will
unlock all doors and the liftgate, then prevent the
power door lock system from locking the doors and
liftgate for a predetermined time interval, after
receiving a CCD message from the ACM indicating a
frontal impact of the vehicle requiring airbag deploy-
ment. This feature will also turn on the courtesy
lamps ten seconds after receiving the ACM deploy-
ment message, if the CCD vehicle speed message
from the PCM indicates that the vehicle is not mov-
ing. Of course, these responses are dependent upon
functional battery power and wiring circuitry follow-
ing the impact.
• Rolling door locks is a programmable feature of
the power lock system. This feature will automati-
cally lock all of the doors and the liftgate after the
vehicle reaches a speed of about 24 kilometers-per-
hour (15 miles-per-hour) or greater. This feature will
also lock the doors if a door is opened, then closed
again, at any speed above 24 kilometers-per-hour (15
miles-per-hour).
• A programmable feature of the RKE system is
the enabling or disabling of the horn chirp following
activation of the RKE Lock function. This feature can
be enabled or disabled and, if enabled, the horn chirp
duration (twenty or forty milliseconds) can be
selected.
Both versions of the CTM are mounted under the
passenger side end of the instrument panel, outboard
of the instrument panel glove box opening. Refer to
Central Timer Module in the Removal and Installa-
tion section of Group 8E - Instrument Panel Systems
for the service procedures.
The programmable features of the CTM can be
enabled or disabled using the DRBIII
described in the proper Diagnostic Procedures man-
ual. These features can also be enabled/disabled
using the customer programmable feature. See the
owner's manual in the vehicle glove box for more
information on the customer programmable feature.
Refer to Central Timer Module in the Diagnosis and
Testing section of Group 8U for diagnosis of the base
version of the CTM. For diagnosis of the high-line
version of the CTM or of the CCD data bus, a
DRBIII scan tool and the proper Diagnostic Proce-
dures manual are recommended. The CTM cannot be
repaired and, if faulty or damaged, it must be
replaced.
POWER LOCK SWITCH
The power locks can be controlled by a two-way
switch integral to the power window and lock switch
unit on the driver side front door trim panel, or a
two-way single gang switch on the passenger side
front door trim panel. The power lock switch controls
the battery feeds to the lock and unlock sense inputs
of the high-line Central Timer Module (CTM). The
CTM then relays the correct battery and ground
feeds to the power lock motors. A Light-Emitting
Diode (LED) in the paddle of each switch is illumi-
nated whenever the ignition switch is in the On posi-
tion.
The driver side power window and lock switch unit
cannot be repaired and, if faulty or damaged, the
entire switch unit must be replaced. The passenger
side power lock switch cannot be repaired and, if
faulty or damaged, the switch must be replaced.
POWER LOCK MOTOR
In the power lock and Remote Keyless Entry
(RKE) systems, the door and liftgate latch lock mech-
anisms can be actuated by a reversible electric motor.
The power lock motor is integral to the door latch
mounted within each door. A separate power lock
motor is used to actuate the liftgate latch.
The power lock motor direction is controlled by the
battery and ground feeds from the power lock and
unlock relays, which are integral to the high-line
Central Timer Module (CTM). The RKE receiver
within the CTM can also unlock just the driver door
through a separate driver door unlock relay that is
located in the relay and fuse block attached to the
back of the junction block under the instrument
panel.
The power door lock motors cannot be repaired
and, if faulty or damaged, the entire door latch unit
must be replaced. The power liftgate lock motor is
serviced separately.
REMOTE KEYLESS ENTRY TRANSMITTER
scan tool as
The Remote Keyless Entry (RKE) system transmit-
ter is equipped with three buttons, labeled Lock,
Unlock, and Panic. It is also equipped with a key
ring and is designed to serve as a key fob. The oper-
ating range of the transmitter radio signal is up to 7
meters (23 feet) from the RKE receiver.
POWER LOCK SYSTEMS 8P - 3