Description
Handles, Locks, Latches and Entry Systems
NOTE:
A = Hardwired; F = RF transmission; N = Medium speed CAN (controller area network) bus; O = LIN (local interconnect network) bus.
Central Locking System - Manual Operation
The central locking system provides the option of 2 or 3 manual locking modes, dependent on the vehicle specification. The locking modes are activated using the instrument panel central locking switches, front door central lock/unlock buttons, or the remote handset lock/unlock buttons:
- Internally locked mode
- Externally locked mode
- Double locked mode (all except NAS, Japan and Gulf vehicles).
When the vehicle is externally locked, the CJB (central junction box) flashes the direction indicators once for 250 milliseconds. When the vehicle is double locked, the CJB (central junction box) flashes the direction indicators twice for 250 milliseconds with a 250 millisecond pause between flashes. When the vehicle is unlocked with the remote handset, the CJB (central junction box) flashes the direction indicator lamps twice for 250 milliseconds with a 250 millisecond pause between flashes.
The remote handset may be configured by the driver for single point entry or global entry, by simultaneously pressing the remote handset lock and unlock buttons for 4 seconds. The vehicle must initially be in an unlocked state. The direction indicators will flash twice for 250 milliseconds with a 250 millisecond pause between flashes to confirm the mode change. The vehicle will also lock and then unlock in the selected mode.
When single point entry is enabled, an unlock command from the remote handset will only unlock the driver's door, tailgate and the fuel filler door. To unlock the remaining entry points, a second unlock command from the remote handset or the instrument panel central unlock switch is required.
Additional options for speed dependent locking and automatic relocking modes may be configured by the dealer. All vehicles incorporate an automatically operated crash unlocking mode.
Internally Locked Mode
The internally locked mode is activated by a single press of a front door central lock/unlock button. When in the internally locked mode:
- The exterior door release handles are disengaged from the door latches to prevent opening of the doors from outside the vehicle.
- The CJB (central junction box) disregards an open request from the tailgate exterior handle to prevent opening of the tailgate from outside the vehicle.
- The vehicle may be unlocked by either a single press a front door central lock/unlock button or a single press of the remote handset unlock button. The vehicle will also unlock if the driver or front passenger door is opened.
Externally Locked Mode
The externally locked mode is activated by a single press of the remote handset lock button. When in the externally locked mode:
- The exterior door release handles are disengaged from the door latches to prevent opening of the doors from outside the vehicle.
- The CJB (central junction box) disregards an open request from the tailgate exterior handle to prevent exterior opening of the tailgate and doors.
- The fuel filler door actuator is energized to lock the fuel filler door.
- The vehicle may be unlocked by a single press of the remote handset unlock button.
Double Locked Mode
The double locked mode is activated by pressing the remote handset lock button twice within 3 seconds. When in the double locked mode:
- The interior and exterior door release handles are disengaged from the door latches to prevent opening of the doors from inside or outside the vehicle.
- The fuel filler door actuator is energized to lock the fuel filler door.
- The CJB (central junction box) disregards an open request from the tailgate exterior handle and the instrument panel central locking switches, to prevent opening of the tailgate and doors.
- The vehicle may be unlocked with a single press of the remote handset unlock button.
For all UK, Europe and ROW specification vehicles, a single press of the remote handset lock button will externally lock the vehicle to disengage the exterior handles, and will arm the active anti-theft system.For additional information, refer to Anti-Theft - Active Anti-Theft - Active
For NAS, Japan and Gulf specification vehicles, a single press of the remote handset lock button will externally lock the vehicle to disengage the exterior handles, and will arm the active and passive anti-theft system. For additional information, refer to Anti-Theft - Active Anti-Theft - Active
For additional information, refer to Anti-Theft - Passive Anti-Theft - Passive
For all vehicles except NAS, Japan and Gulf specifications, pressing the remote handset lock button twice within 3 seconds will double lock the vehicle to disengage the interior and exterior handles, and will arm the active and passive anti-theft system. For additional information, refer to Anti-Theft - Active Anti-Theft - Active
For additional information, refer to Anti-Theft - Passive Anti-Theft - Passive
Central Locking System - Automatic Modes
The central locking system features automatic modes to control the vehicle entry points, and provide protection for the system components.
The central locking system incorporates the following automatic modes:
- Mislock mode
- Speed dependent locking mode (if programmed)
- Crash unlocking mode
- Repetition blocking mode
- Lockout protection mode
- Automatic relock mode (if programmed)
- Transport mode.
Mislock Mode
A mislock occurs if the CJB (central junction box) receives an external lock or double lock request when a hinged panel is ajar. To indicate a mislock the CJB (central junction box) sounds the horns to produce a 100 millisecond 'chirp'.
If a mislock occurs due to an external lock request when a hinged panel is ajar, the CJB (central junction box) will not carry out a lock request on any access points.
Speed Dependent Locking Mode
When speed dependent locking is enabled the CJB (central junction box) will internally lock all the doors when the vehicle speed exceeds 8 km/h (5 mph) with all the doors closed and the engine running. If the driver or front passenger door is opened and then closed, when the vehicle slows down or stops and then increases to more than 8 km/h (5 mph) again, the CJB (central junction box) will internally lock the doors.
Speed dependent locking may be enabled or disabled by the dealer using the Land Rover approved diagnostic system.
Crash Unlocking Mode
With the ignition in power mode 6 (Ignition), if a crash occurs that triggers deployment of the air bags, then the CJB (central junction box) will unlock all of the doors. The CJB (central junction box) is informed of the crash by a status message from the RCM (restraints control module) on the medium speed CAN (controller area network) bus that changes from 'no crash' to 'crash'.
The central locking system will also perform crash unlocking mode if a 'no crash' status message is not received from the RCM every 500 milliseconds.For additional information, refer to Specifications [1][2]Seat Belt Systems
Repetition Blocking Mode
To protect the central locking system motors and actuators against system misuse, the CJB (central junction box) incorporates repetition blocking to limit the maximum operating rate of each motor and actuator. The lock motor in each door latch also incorporates thermal protection.
Lockout Protection Mode
The vehicle is not able to be locked using a front door central locking button if any door is open.
If an internal lock request is received from either of the front door central locking buttons, the CJB (central junction box) will centrally lock the vehicle and then centrally unlock the vehicle if any door is open.
If a front door is open and the open door central locking button is pressed and held in the locked position, the open front door may remain in the locked state. When the open door is subsequently closed, the CJB (central junction box) will centrally unlock all doors.
Automatic Relock Mode
Automatic relock prevents accidental operation of the remote handset buttons that will unlock and disarm the vehicle.
When the central locking system is unlocked using the remote handset, and a door or tailgate is not opened or the remote handset is not placed in the start control unit within 1 minute, the CJB (central junction box) will automatically lock or double lock the vehicle again, depending on the previously locked mode.
Transport Mode
All new vehicles are delivered from the factory in transport mode. Transport mode replaces the traditional transit relay and inhibits a number of electrical systems and features to reduce quiescent drain from the battery during delivery. When the vehicle is in transport mode 'transp' is displayed in the instrument cluster odometer. Single point entry is enabled and global locking and unlocking using the remote handset is disabled.
The speed locking mode is also disabled, but crash unlocking mode remains enabled.
To remove the vehicle from transport mode, the Land Rover approved diagnostic system must be connected during the PDI (pre-delivery inspection). For further information, refer to the PDI manual.
DOOR LATCHES
The door latches are installed at the rear edge of each door and engage with corresponding strikers mounted to the 'B' and 'C' pillars. Each interior and exterior door handle is connected with a release cable to the corresponding door latch. In the front LH (left-hand) door a third release cable is connected between the door latch and the concealed emergency mechanical door lock.
Each door latch is a sealed unit that comprises the following:
- Lock motor
- Double lock motor (all except North American Specification (NAS), Japan and Gulf vehicles)
- Door ajar switch.
An electrical connector is incorporated in each door latch and provides the interface with the door control module and CJB (central junction box). The front door control modules are connected to the CJB (central junction box) on the medium speed CAN (controller area network) bus; the rear door control modules are connected via the LIN (local interconnect network) bus to the front door control modules.
The lock and double lock motors control the engagement of the door latches with the release cables to lock and unlock the vehicle. When the vehicle is locked, the lock motors disengage the door latches from the exterior release cables. When the vehicle is double locked, the double lock motors also disengage the door latches from the interior release cables. When the vehicle is subsequently unlocked, the interior and exterior release cables are re-engaged with the door latches.
All the door interior release handles incorporate a locking button. When a front door central locking button is pressed, all the vehicle doors will centrally lock/unlock. When a rear door locking button is pressed, the locking button will only lock/unlock the activated rear door.
When the door locking button is pressed, the interior release cable is pushed and causes the exterior release cable to be disengaged from the door latch. On the rear doors, pressing the locking button will also disengage the interior handle from the interior release cable.
When the door locking button is pulled away from the door, the door interior release handle is re-engaged with the interior release cable. As the interior release cable is re-engaged it is pulled, causing the door latch to re-engage with the exterior release cable.
Rear Door Child Locks
The rear door latches incorporate child locks that provide additional rear occupancy safety. The child locks are manually operated using the emergency key blade within the remote handset. Setting the child lock to the locked position will disengage the door latch interior release cable from the door latch, and prevent opening of the rear door using the interior release handle.
For further information on child locks, refer to the Owners Handbook.
Door Ajar Switch
An ajar switch is installed in each door latch and is hardwired to the CJB (central junction box). If the ignition is in power modes 4 (Accessory) or 6 (Ignition) and a door is opened or is not fully closed, the corresponding door ajar switch is opened to disconnect the ground from the CJB (central junction box). A message is transmitted by the CJB (central junction box) via the medium speed CAN (controller area network) bus to the instrument cluster, to inform the driver that a door is ajar.
On vehicles with a low-line instrument cluster the door ajar symbol is illuminated.For additional information, refer to Instrument Cluster Locations
On vehicles with a high-line instrument cluster, the door ajar symbol is illuminated and a message is also displayed in the message center.For additional information, refer to Information and Message Center Locations
The door ajar switch is also integrated with the vehicle security system and is used as the detection device for unauthorized vehicle entry.For additional information, refer to Anti-Theft - Active Anti-Theft - Active
HOOD LATCHES
The hood is secured in the closed position by 2 latches located on each side of the hood latch panel. The hood release lever is located below the instrument panel on the LH (left-hand) 'A' pillar and is connected with a cable to the hood latches. Operation of the hood release lever will open the 2 hood latches and release the hood.
A mechanically operated safety hook is installed at the front center of the hood. The safety hook prevents the hood from fully opening in the event that the hood latches are open, and the vehicle is in motion. The safety hook is spring operated to bias the hook to the latched position, and is formed with a lever plate. The lever must be pressed to release the safety hook from the mating latch plate when the hood is to be fully opened.
Hood Ajar Switch
The RH (right-hand) hood latch incorporates the hood ajar switch that is hardwired to the CJB (central junction box). If the ignition is in power modes 4 (Accessory) or 6 (Ignition) and the hood is opened or is not fully closed, the hood ajar switch is opened to disconnect the ground from the CJB (central junction box). A message is transmitted by the CJB (central junction box) via the medium speed CAN (controller area network) bus to the instrument cluster, to inform the driver that the hood is ajar.
On vehicles with a low-line instrument cluster the hood ajar symbol is illuminated.For additional information, refer to Instrument Cluster Locations
On vehicles with a high-line instrument cluster, the hood ajar symbol is illuminated and a message is also displayed in the message center.For additional information, refer to Information and Message Center Locations
The hood ajar switch is also integrated with the vehicle security system and is used as the detection device for unauthorized vehicle entry.For additional information, refer to Anti-Theft - Active Anti-Theft - Active
TAILGATE LATCH
The tailgate latch is mounted at the bottom center of the tailgate interior body panel and is a fully electrically operated unit. The tailgate latch incorporates the tailgate lock motor, and receives a power supply via a hardwired connection from the CJB (central junction box) (The manual variant is not fully electrical and does not incorporate the tailgate lock motor). A release microswitch is housed within a touch-pad that is located on the underside of the tailgate exterior handle.
The tailgate latch is released by the CJB (central junction box) when the vehicle is stationary and either the remote handset button is pressed, or the exterior handle touch-pad is applied. It can also be released by the button in the cabin (with the handle which has the tailgate symbol on it).
Tailgate Ajar Switch
The tailgate latch also incorporates the tailgate ajar switch that is hardwired to the CJB (central junction box). If the ignition is in power modes 4 (Accessory) or 6 (Ignition) and the tailgate is opened or is not fully closed, the tailgate ajar switch is opened to disconnect the ground from the CJB (central junction box). A message is transmitted by the CJB (central junction box) via the medium speed CAN (controller area network) bus to the instrument cluster, to inform the driver that the tailgate is ajar.
On vehicles with a low-line instrument cluster the tailgate ajar symbol is illuminated.For additional information, refer to Instrument Cluster Locations
On vehicles with a high-line instrument cluster, the tailgate ajar symbol is illuminated and a message is also displayed in the message center.For additional information, refer to Information and Message Center Locations
The tailgate ajar switch is also integrated with the vehicle security system and is used as the detection device for unauthorized vehicle entry.For additional information, refer to Anti-Theft - Active Anti-Theft - Active
FUEL FILLER DOOR ACTUATOR
The fuel filler door is electrically locked and unlocked with an actuator and plastic pin. The actuator is located behind the fuel filler door housing, and operates the pin to engage or release a spigot on the door mounting hinge arm.
NOTE:
Locking feature is not available on NAS spec cars.
The fuel filler door actuator is hardwired to the CJB (central junction box) and is operated by the vehicle central locking system. The CJB (central junction box) reverses the polarity of the actuator power and ground connections, allowing the pin to move in both directions for locking and unlocking. When unlocked, the fuel filler door is manually opened to gain access to the fuel tank filler cap.
CENTRAL LOCKING SYSTEM CONTROLS
The central locking system provides the driver with control over the locking and unlocking of the vehicle entry points, from inside or outside the vehicle. Manual operation of the central locking system is achieved using the following:
- Remote handset and RF receiver
- Front door central locking button
- Instrument panel central locking switches.
Remote Handset and Emergency Mechanical Door Lock
The remote handset contains an emergency key blade, concealed in the key fob. The front LH (left-hand) exterior door handle incorporates a mechanical operated door lock that is concealed behind a removable plastic cover. The door lock allows the front LH (left-hand) door to be mechanically unlocked and locked using the emergency key blade in the event that the remote central locking operation fails, or a vehicle power failure occurs.
When the mechanical door lock is used the central locking system will not operate, and if already armed the vehicle alarm will sound when the door is opened. The vehicle is not able to be double locked, or the alarm system armed using the emergency key blade.
The remote handset contains a Printed Circuit Board (PCB), transponder and a battery.
The remote handset contains an emergency key blade, concealed in the key fob. The emergency key blade is used to access the vehicle through the LH (left-hand) front door if the central locking system fails. The emergency key blade is also used to enable or disable the rear door child locks, and to disable the passenger airbag.For additional information, refer to Air Bag Supplemental Restraint System (SRS) Locations
The remote handset is identical for all vehicle specifications, but differs in the preset frequency and power that the remote handset operates. The remote handset for each vehicle specification is identified by a suffix change to the base part number as follows:
Each remote handset features a unique identification code that is programmed within the integral transponder. The RF signal produced by the remote handset contains the unique identification code and also a rolling code. During vehicle production, the unique identification codes of the valid remote handsets are programmed into the RFA, and the rolling codes are also synchronized with the RFA.
When the remote handset is operated, the RFA checks the unique identification and rolling code. The RFA will only respond if the RF signal produced is from a valid remote handset for the vehicle.For additional information, refer to Anti-Theft - Active Anti-Theft - Active
A total of 8 'slots' are available in the RFA software to allow for replacement and the addition of remote handsets. In service, the Land Rover approved diagnostic system may be used to communicate with the RFA for the following:
- Identification of remote handset allocation within the RFA.
- Enabling of new remote handsets.
- Disabling of existing remote handsets.
If the remote handset rolling code loses synchronization with the RFA, the remote handset functions will not operate. Synchronization between the remote handset and RFA is restored automatically when buttons are pressed.
Additional buttons are located on the remote handset to provide convenience operation of the tailgate release, headlamp delay and panic alarm functions.
RF Receiver
The RF receiver is installed on the headlining on RH (right-hand) side at pillar 'B'. The receiver provides functionality for the remote central locking system.
NOTE:
TPMS (tire pressure monitoring system) is provided by a separate receiver.
The RF receiver is identical for all vehicle specifications, but differs in the preset frequency that the receiver operates. The RF receiver for each vehicle specification is identified by a suffix change to the base part number as follows:
The RF receiver converts the signals transmitted by the remote handset into digital messages, and then transmits the message via the ISO9141 bus to the RFA.
A permanent power feed is supplied to the RF receiver by the CJB (central junction box).
Front Door Central Locking Button
Both the front door interior locking buttons will activate the central locking function. When a front door central locking button is pressed, all the vehicle doors will centrally lock/unlock.
When a front door central locking button is pressed, the door control module on the activated door transmits the central lock/unlock request to the CJB (central junction box). The CJB (central junction box) then transmits the central lock/unlock command to all the vehicle door control modules to lock/unlock all the vehicle doors.
The central locking feature using the front door central locking button is inhibited if either of the front doors is ajar. If a front door is ajar when a front door central locking button is pressed to lock the doors, the doors will lock and then instantly unlock.