When a key is turned in the door lock cylinder, a
lock or unlock signal is sent to the associated door
control module. The door control module sends a
signal to the CJB. The CJB issues a signal to the
remaining door control modules, which in turn
command the latches to operate.
RKE is achieved by the transmission of a coded
RF signal from a transmitter contained in the
vehicle key. The signal is received by the RF
receiver located above the headliner in the vicinity
of the overhead console. The received signal is
passed onto the CJB where it is decoded. If the
coded signal is valid, the CJB will issue a command
on the CAN bus circuit to operate the door latches
or liftgate/luggage compartment lid release.
The signals received by the CJB from the RF
antenna or the door control modules is also used
to arm and disarm the vehicle security systems,
illuminate the interior lights and operate the global
closing functions.
Liftgate/Luggage Compartment Lid Latch
E56852
The liftgate/luggage compartment lid latch is a
mechanical latch with a electric motor to drive the
latch release. The liftgate/luggage compartment
lid latch has no remote mechanical release facility.
The command to open the liftgate/luggage
compartment lid latch is sent by the CJB. But the
input command to the CJB can be issued by the
exterior liftgate/luggage compartment lid release
switch, the interior liftgate/luggage compartment
lid release switch or the RF receiver.
When the liftgate/luggage compartment lid is
closed, the latch is automatically locked.
Door latch
E56853
Door latches have mechanical latch release with
electric motor operated locking and double locking
function.
When the door latch is locked, the exterior door
handle is disengaged from the door latch.
Incorporated within the door latch is a door ajar
switch. The door ajar switch monitors the latch
position and supplies information to the door control
module. This information is sent to the CJB for use
in warning systems, locking functions and alarm
system.
G400816en
501-14-
7
Handles, Locks, Latches and Entry Systems
501-14-
7
DESCRIPTION AND OPERATION