LR3/Disco 3
When the remote handset is used, the CJB (central junction box) will only lock or superlock the vehicle provided the
ignition key has been removed from the ignition switch.
When the vehicle is externally locked or superlocked, the CJB (central junction box) flashes the turn signal lamps three
times, for 500 milliseconds, with a 500 milliseconds pause between flashes. When the vehicle is unlocked using the
remote handset, the CJB (central junction box) flashes the turn signal lamps once, for 3 seconds.
Mislock
A mislock occurs if the CJB (central junction box) receives an external lock or superlock request when any hinged panel is
ajar, an invalid key is in the ignition switch or the repetition blocking limit for the door latches is reached. To indicate a
mislock the CJB (central junction box) uses the horns to produce a 100 milliseconds 'chirp' and withholds flashing of the
turn signal lamps.
If a mislock occurs because an invalid key is in the ignition switch or a hinged panel is ajar, the CJB (central junction box)
still externally locks any doors that are closed. The closed doors are only externally locked, even if the original request
was for superlocking.
If a mislock occurs because a hinged panel is ajar, when the hinged panel is subsequently closed the CJB (central
junction box) maintains the current locking state until it receives another external lock or superlock request.
SPE
When SPE is enabled, an unlock command from the remote handset only unlocks the driver door. To unlock the
remaining doors a second unlock command from the remote handset or the CLS unlock switch is required.
For each remote handset, SPE can be toggled on and off by pressing and holding the lock and unlock buttons on the
remote handset at the same time, for 3 seconds, with the vehicle either locked or unlocked and the key removed from the
ignition switch. Confirmation of the change to the SPE setting is provided by the vehicle locking and then unlocking in the
selected mode.
Speed Dependant Locking
When speed dependant locking is enabled, the CJB (central junction box) internally locks the doors when the vehicle
speed exceeds 8 km/h (5 mph) with the driver door closed and the engine running. If the vehicle slows down or stops,
then increases to more than 8 km/h (5 mph) again, the CJB (central junction box) internally locks the doors again only if a
door was opened while the vehicle speed was less than 8 km/h (5 mph). When the key is removed from the ignition
switch, the CJB (central junction box) returns the vehicle to the previous unlocked state, i.e. unlocks all the doors, or just
the driver door if SPE is enabled.
Speed dependant locking can be enabled and disabled in the customer settings menu. For additional information, refer to
Information and Message Center
(413-08 Information and Message Center)
Crash Unlocking
When the ignition switch is in position II, if a crash that triggers the air bags occurs the CJB (central junction box) unlocks
all of the doors. After 3 seconds, the CJB (central junction box) unlocks the doors again, in case a lock button is pressed
during the crash, by flailing limbs for example. The CJB (central junction box) is informed of the crash by a status
message from the restraints control module, on the medium speed CAN bus, which changes from 'no crash' to 'crash'.
The CLS will also perform crash unlocking if a 'no crash' status message is not received every 500 milliseconds.
The vehicle cannot be centrally locked again until the status message has been reset to 'no crash' by the restraints control
module. For additional information, refer to
Air Bag and Safety Belt Pretensioner Supplemental Restraint System
(SRS)
(501-20B )
Repetition Blocking
To protect the CLS motors and actuators from operating abuse, the CJB (central junction box) incorporates a repetition
blocking feature, which limits the maximum operating rate of each motor and actuator. The lock motor in each door latch
