Power Locks - Chrysler 300M Service Manual

8N - 2

POWER LOCKS

POWER LOCKS (Continued)
NOTE: The Power Door Lock Motor is not serviced
separately. It is part of the door latch assembly.
Refer to Body, Door - Front, Front Door Latch, or
Body, Door - Rear, Rear Door Latch, Removal and
Installation.
CENTRAL LOCKING
The Central Locking System is part of the Vehicle
Theft Security System (VTSS).
CHILD PROTECTION LOCK
The child protection locks are on the rear doors
only.
DOOR LOCK INHIBIT
The Door Lock Inhibit prevents the vehicle from
being locked with the key in the ignition.
REMOTE KEYLESS ENTRY
Fig. 1 REMOTE KEYLESS ENTRY TRANSMITTER
1 - BATTERIES
The system allows locking and unlocking of vehicle
door(s), deck lid release, and panic by remote control
using a hand held radio frequency transmitter (Fig.
1). The vehicle must be in PARK before the trunk lid
can be unlatched with the transmitter.
The receiver may receive signals from up to four
transmitters. Each transmitter has its own code, and
the code is programmed and stored into receiver
memory. If a transmitter is replaced or additional
transmitters are added, the codes for all units have
to be reprogrammed into the receiver memory. If a
receiver module is replaced, the transmitter codes
must be stored in the new receiver memory.
HORN CHIRP TOGGLE
Once the transmitters have been programmed, the
horn chirp can be enabled/disabled by sending the
horn chirp toggle operation code to the Body Control
Module (BCM). Refer to the Owners Manual for pro-
gramming procedures.
OPERATION
POWER DOOR LOCKS
The Body Control Module (BCM) 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 BCM will de-en-
ergize the door lock relay.
The system includes an Automatic Door Locking
feature. 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 Keyless Entry System only. When the Auto-
matic Door Lock System is enabled the BCM will
automatically lock all the doors when all of the con-
ditions below are met:
• All doors are closed.
• The vehicle speed exceeds 15 ± 1 mph.
• The throttle position sensor tip-in is greater
than 10 ± 2 degrees.
The DRB III scan tool is used to enable/disable
the automatic door lock system. Refer to the proper
Body Diagnostic Procedures Manual. They are also
customer programmable. Refer to Owners Manual for
customer programming procedures.
The BCM will automatically re-lock all doors if the
above conditions are met and if any of the doors
become ajar and then closes again.
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.
CENTRAL LOCKING
Using the key, turn the driver's door cylinder lock
to the lock position, all doors will lock. This feature
operates differently on each door. Turn the key in the
driver's door to the unlock position once will unlock
the driver's door only. Turning the key a second time
to the unlock position within five seconds of the first
time will unlock all the doors.
The lock/unlock operation will arm/disarm the
VTSS and will also activate/cancel the illuminated
entry feature.
LH