Chrysler PT Cruiser. Manual — part 508
the PCI data bus network, the use of a DRBIII
t scan
tool and the appropriate diagnostic information are
required.
CHILD PROTECTION LOCKS
To provide a safer environment for children riding
in the rear seat, the rear doors have the “child pro-
tection” door lock system.
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.
DOOR LOCK INHIBIT
With the key in the ignition switch and the driver
door open, the Remote Keyless Entry (RKE) module
will ignore the command to lock the power door locks
using the interior door lock switches. Once the key is
removed, or the drivers door is closed, the RKE mod-
ule will allow the power locks to lock using the door
lock switch.
REMOTE KEYLESS ENTRY
The remote keyless entry system allows locking
and unlocking of the vehicle door(s) liftgate, panic
alarm and arming or disarming of the vehicle theft
security system (if equipped), using the hand held
(RF) transmitter.
The RKE module is also referred to as the Alarm
Remote Keyless Entry Module (ARKEM). It also con-
tains the functionality for the Vehicle Theft Security
System (VTSS).
The module may receive signals from up to four
transmitters. Each transmitter has its own code, and
the code is programmed and stored into the module
memory. If a transmitter is replaced or additional
transmitters are added, the codes for all units have
to be reprogrammed into the RKE module or ARKEM
memory. If a module is replaced, the transmitter
codes must be stored in the new memory (by per-
forming the steps for programming transmitters).
The RKE or ARKEM is capable of retaining all trans-
mitter codes when power is removed from the mod-
ule.
OPERATION
POWER LOCKS
All doors can be locked or unlocked mechanically
and independently with their respective locking
knobs. The front doors can also be unlocked by actu-
ation of the inside remote door handle.
CENTRAL LOCKING/UNLOCKING (IF EQUIPPED)
The door locks can be locked or unlocked electri-
cally via the exterior door key cylinders to provide
the central locking/unlocking feature. The central
locking/unlocking feature incorporates a customer
programmable
9Double activation unlock9 feature
which operates in the following manner: When
enabled, the first turn of the key cylinder to the
UNLOCK position (toward the front of the vehicle)
will mechanically unlock the door whose key cylinder
is being turned. A second turn of the key cylinder to
the UNLOCK position (within five seconds of the
first turn) will cause all vehicle doors and liftgate to
unlock electrically. When this feature is disabled, all
vehicle doors and liftgate will be unlocked electrically
upon the first turn of a key cylinder to the UNLOCK
position. The vehicle is locked electrically by turning
the key cylinder to the LOCK position once, regard-
less of the state of the double activation unlock fea-
ture.
REMOTE KEYLESS ENTRY
The transmitter has three buttons for operation:
LOCK, UNLOCK and PANIC.
• Pressing the UNLOCK button will unlock the
driver’s door, flash the park lamps twice and enable
illuminated entry. Pressing and releasing the button
once will unlock the drivers door. Pressing and
releasing the button two tomes within a five second
interval will unlock all doors.
• Pressing the LOCK button will cause the horn
to sound a short chirp (if enabled) and flash the park
lamps to notify that the all door lock signal was
received and set. Illuminated entry is cancelled and
the interior lamps are faded to off.
• Pressing the PANIC button will cause the panic
alarm to sound for three minutes, until the PANIC
button is pressed a second time, or the vehicle
reaches a speed of 25.7 Km/h (15 mph). The receiver
is capable of retaining a Vehicle Access Code (VAC)
even when power is removed. Each Remote Keyless
Entry (RKE) module must have at least one and no
more than four transmitter.
ROLLING DOOR LOCKS
When the rolling door lock system is enabled, the
RKE module will automatically lock all the vehicle
doors and liftgate when all of the following conditions
are met:
• All doors are closed
• The vehicle speed exceeds 25.7 Km/h (15 +/- 1
mph).
• The 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.
8N - 2
POWER LOCKS
PT
POWER LOCKS (Continued)
The enabling/disabling of the rolling door lock fea-
ture is customer programmable, as well as program-
mable with the DRB lll
t scan 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.
DIAGNOSIS AND TESTING - POWER LOCKS
The most reliable, efficient, and accurate means to
diagnose the power lock system requires the use of a
DRBIII
t scan tool and the proper Diagnostic Proce-
dures manual. The DRBIII
t scan tool can provide
confirmation that the PCI data bus is functional, that
all of the electronic modules are sending and receiv-
ing the proper messages on the PCI data bus, and
that the power lock motors are being sent the proper
hard wired outputs by the relays for them to perform
their power lock system functions.
STANDARD PROCEDURE
STANDARD PROCEDURE - 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 lll
t scan tool, or by
the customer.
DRB lll
T PROGRAMMING
When using the DRB lll
t scan tool, select:
(1) “Theft Alarm”
(2) “VTSS”
(3) “Miscellaneous”
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.
Steps 2 and 3 must be completed within 10 sec-
onds.
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.
STANDARD PROCEDURE - ROLLING DOOR
LOCKS
The toggling of the rolling door lock feature (between
enabled and disabled) can be performed with the use of
the DRB lll
t scan tool or by the customer.
DRB lll
T PROGRAMMING
When using the DRB lll
t scan tool, select:
(1) “Theft Alarm”
(2) “VTSS”
(3) “Miscellaneous”
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.
Steps 2 and 3 must be completed within 10 sec-
onds.
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.
DOOR LOCK SWITCH
DIAGNOSIS AND TESTING - DOOR LOCK
SWITCH
(1) Remove the switch.
(2) Using an ohmmeter, refer to Door Lock Switch
Test table to determine if switch resistance is correct
in the Lock and Unlock switch positions. Refer to
Wiring Diagrams for harness connector pin-outs.
PT
POWER LOCKS
8N - 3
POWER LOCKS (Continued)
DOOR LOCK SWITCH TEST
SWITCH
POSITION
PINS
RESISTANCE
VALUE
LOCK
2 AND 3
1K OHM ±10 %
UNLOCK
2 AND 3
249 OHM ± 10 %
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove front door trim panel (Refer to 23 -
BODY/DOOR - FRONT/TRIM PANEL - REMOVAL).
(3) Disconnect wire connector to door lock switch.
(4) Remove two attaching screws to switch.
(5) Remove the switch from trim panel.
INSTALLATION
(1) Install the switch on trim panel.
(2) Install two attaching screws to switch.
(3) Connect wire connector to door lock switch.
(4) Install front door trim panel (Refer to 23 -
BODY/DOOR - FRONT/TRIM PANEL - INSTALLA-
TION).
(5) Connect the battery negative cable.
DOOR LOCK MOTOR
DESCRIPTION
The lock mechanisms are actuated by a reversible
electric motor mounted within each door and tailgate.
The power lock motors are integral to the door latch
units.
The power lock motors cannot be adjusted or
repaired and, if faulty or damaged, the door latch
unit must be replaced.
OPERATION
The door lock motors are controlled by relays. A
positive and negative battery connection to the two
motor terminals will cause the motor to move in one
direction. Reversing the current will cause the motor
to move in the opposite direction.
DIAGNOSIS AND TESTING - DOOR LOCK
MOTOR
The most reliable, efficient, and accurate means to
diagnose the power lock system requires the use of a
DRBIII
t scan tool and the proper Diagnostic Proce-
dures manual.
Refer to the appropriate wiring information.
(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. Disconnect-
ing 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.
LIFTGATE LOCK MOTOR
REMOVAL
(1) Disconnect and isolate the battery negative cable.
(2) Remove liftgate trim panel.
(3) Disconnect motor wire harness connector.
(4) Remove liftgate lock motor from liftgate (Fig. 1)
by gently unsnapping.
INSTALLATION
(1) Install liftgate lock motor on the liftgate.
(2) Install motor wire harness connector.
(3) Install the liftgate trim panel.
(4) Connect the battery negative cable.
Fig. 1 LIFTGATE LOCK MOTOR
1 - LIFTGATE CYLINDER LOCK SWITCH
2 - LIFTGATE LOCK MOTOR
3 - LATCH ASSEMBLY
4 - LIFTGATE AJAR SWITCH
8N - 4
POWER LOCKS
PT
DOOR LOCK SWITCH (Continued)
REMOTE KEYLESS ENTRY
MODULE
DIAGNOSIS AND TESTING - REMOTE KEYLESS
ENTRY MODULE
The most reliable, efficient, and accurate means to
diagnose the power lock system requires the use of a
DRBIII
t scan tool and the proper Diagnostic Proce-
dures manual.
Refer to the appropriate wiring information.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the instrument panel top cover.
(3) Remove the two screws holding the RKE mod-
ule to the instrument panel assembly (Fig. 2).
(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 lll
T
scan tool for proper operation. Refer to
Vehicle Theft/Security Systems, Configuring a New
Module under Service Procedures. Additionally, all
transmitters must be reprogrammed to the new
RKE module.
INSTALLATION
(1) Install the RKE module on instrument panel.
(2) Connect the wiring harness connector to the
RKE module. Slide locking tab of the wiring connec-
tor sideways to lock tab.
(3) Install the two screws holding the RKE module
to the instrument panel assembly.
(4) Install the instrument panel top cover.
(5) Connect the battery negative cable.
REMOTE KEYLESS ENTRY
TRANSMITTER
DESCRIPTION
The transmitter has three buttons for operation
(Fig. 3). They are LOCK, UNLOCK, and PANIC.
OPERATION
• The UNLOCK button will unlock the driver
door flash the Park lamps twice and enable illumi-
nated entry. Pushing and releasing the button once
will unlock the driver door. Pushing and releasing
the button two times within a five second period will
unlock all doors (double unlock activation enabled).
• Upon pressing the LOCK button, the horn will
sound a short chirp (if enabled) and flash the park
lamps to notify that the all door lock signal was
received and acted upon. Illuminated entry is can-
celled and the interior lamps are faded to off.
• Pushing the PANIC button will cause the panic
alarm to sound for three minutes, until the panic
button is pressed a second time, or until the vehicle
reaches a speed of 15 mph.
Fig. 2 RKE MODULE
Fig. 3 Remote Keyless Entry (Key Fob) Transmitter
PT
POWER LOCKS
8N - 5
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