Power Locks: Description and Operation

Handles, Locks, Latches and Entry Systems







For most markets excluding North America and Japan, the remote central locking system incorporates a double locking facility for optimum security. All locks use the Tibbe key system, using 6 elements and 4 cuts. The keys include 'in-key' transponders which are programmed to the vehicle engine immobilization system by using the Jaguar approved diagnostic system.

The central locking system employs single key access to the driver door, luggage compartment and ignition switch/steering column lock with the exception of the valet key which gives no access to the luggage compartment.

When the vehicle is not locked, each door catch can be externally released by the corresponding exterior door handle which is operated by a single rod. When unlocked, or central locked, the door latches can also be released by the interior handles, each of which are operated by a single cable. Operation of the front door interior handles will also unlock the rear doors. Use of the key in the driver door lock cylinder operates the lock by a short rod to provide locking of the door latch. This in turn locks all other doors and the luggage compartment through the central locking system. These locking functions can also be achieved by use of the remote transmitter.

NOTE: To unlock the rear doors on a North American specification vehicle from within the vehicle the locking lever has to be moved to the unlocked position first and then the opening lever pulled to open the door.

All markets (except Japan), have a 'drive-away door locking' feature incorporated into the central locking system, the system is installed during manufacturing and disabled or reinstated with the Jaguar approved diagnostic system. The 'drive-away door locking' operates when the ignition is in the 'on' position and all the doors are closed, all the doors will lock when the gear selector lever is moved from the park (P) or neutral (N) position. The gear selector lever has to be moved out of the P or N position and to a different gear position for more than one second to trigger the system.

If the vehicle is stopped and a door is opened and closed, the doors will lock again when the gear selector lever is moved from the P or N position to a different gear position for more than one second. If the vehicle is stopped and a door is opened and closed, but the gear selector lever is not moved the the P or N position, the doors will remain unlocked.

Key operation
To central lock or unlock the vehicle, the key is inserted in the driver door lock cylinder, turned clockwise or counter clockwise respectively, and released. Holding the key in the lock position for 1.5 seconds will close all windows. Releasing the key stops all operations. Central locking of the vehicle locks all the doors, the luggage compartment, and sets the alarm system. In addition to all of the above functions, double locking prevents the doors opening from the interior. To 'double lock' the vehicle, the key is inserted in the driver door lock cylinder and turned to the unlock position, then within three seconds, turned to the lock position and released. The same procedure is required to unlock a 'double locked' vehicle as with a central locked vehicle. The key is inserted in the driver door lock cylinder and turned to the unlock position. This function can also be activated using the remote transmitter.

If an attempt is made to lock the doors through either the driver or front passenger door interior handle, when a door is ajar, all doors will lock temporarily and then centrally unlock.

The fuel filler flap switch is used to allow the driver to release the fuel filler flap from inside the vehicle. This function can be used at all times providing the vehicle is not locked by the remote transmitter or the drivers door lock cylinder.

Keyless Entry
The Integrated key remote transmitter operates the following functions:
- unlocking the driver door (market dependent)
- unlocking/locking all doors (market dependent)
- releasing the luggage compartment lid.
- activate/deactivate the double locking (market dependent)
- arms/disarms the anti-theft alarm system, interior scanning system and the inclination sensor (if equipped)
- activates global closing (market dependent)
- deactivates a triggered alarm (market dependent)

Inputs and Outputs

Rear Electronics Module (REM)
The REM controls all locking functions for the passenger doors and controls the luggage compartment release operation. The REM also has the sense inputs from the front electronic module (FEM), driver door module (DDM), and the fuel filler flap actuator.

Driver Door Module (DDM)
The DDM controls all the locking functions for the driver door and stores the configurations for the central locking and global opening systems.

Front Electronics Module (FEM)
The FEM controls the inputs to the system from the:
- valet switch
- interior luggage compartment release
- fuel filler flap switch
- hood latch switch
- glove compartment lid

Transmitter, Keyless Entry Remote
The keyless entry/remote operated lock system is completely independent in function but fully integrated within the DDM (except for Japan and Korea). The remote control system consists of a transmitter and an antenna (radio frequency system).

The remote control transmitter for the radio frequency system will operate without the transmitter being directed at the vehicle. The normal range between the transmitter and the antenna will be up to 10 meters for the USA, Canada and the rest of the world. The normal range between transmitter and antenna will be up to 10 meters for the UK and Europe and five meters for Japan (dependent on the surrounding environment).

Before the remote control system can be used, each transmitter must be initialized to the vehicle. A maximum number of five transmitters can be initialized to any vehicle. All remote transmitters must be initialized at the same time.

The keyless entry/remote operated locks will not operate (lock button only) when the door is ajar, the luggage compartment lid is ajar or if the hood is ajar. All the keyless entry/remote operated functions are inhibited if the ignition key is in the ignition lock.

Locking and Unlocking
The remote transmitter is integrated into the key and contains four buttons (lock, unlock, trunk release, headlamp convenience). To operate the system:
- press the lock button once to activate the central locking system and the alarm system
- press the lock button twice within three seconds to activate the central locking system, double locking system, alarm system and the interior scanning system (if equipped)
- press the unlock button once to deactivate the central or double locking, the alarm system is deactivated and only the driver door is fully unlocked (this is programmable using the Jaguar approved diagnostic system or via the key fob (press and hold the lock and unlock buttons for four seconds)) (market dependent)
- press the unlock button twice within three seconds, will unlock the remaining doors (this is programmable using the Jaguar approved diagnostic system) (market dependent)
- press the luggage compartment release button once releases the luggage compartment lid. The vehicles gear selector lever must be in the park position
- press the headlamp convenience button once to activate the headlamp main beam function, press the headlamp convenience button again to deactivate the headlamp main beam function. This function will automatically deactivate after 25 seconds
- press the headlamp convenience button three times with in three seconds to activate the panic alarm, to deactivate the panic alarm insert a valid ignition key into the ignition lock and turn to the 'ON' position

Double Locking
Double locking prevents the interior door handles from unlocking the doors.

Double locking is activated by turning the key, using the driver door lock cylinder to the unlock position and then to the lock position within three seconds or by pressing the lock button twice within three seconds on the remote transmitter.

Successful double locking is indicated by the turn signals flashing twice, one short flash followed by a long flash and a chirp (if enabled).

Double locking will be inhibited if the REM or FEM senses the hood, a door or the luggage compartment is ajar or open. The REM/FEM receives its input from the door ajar switches.

If the vehicle battery becomes discharged after the double locking or central locking has been activated, opening the driver door with the key will mechanically deactivate the double locking on the driver door only.

Master Lock Switch

NOTE: Operating the locks more than 15 times in 20 seconds will cause the central locking to be inhibited for 20 seconds. If the locks are required to be operated in the 20 seconds waiting period they can be operated individually.

The master lock switch will only operate the central locking if the ignition key is in the 'accessory' or 'on' positions. If any door is open and the master lock switch is pressed to centrally lock the vehicle, no doors will lock. If the hood or luggage compartment lid is open and the master lock switch is pressed to centrally lock the vehicle all doors will lock.

Glove Compartment Lid
The glove compartment lid has no release handle. It is opened automatically when the release switch is operated. The release switch is located in the instrument panel between the glove compartment lid and the floor console.

The glove compartment lid latch is released by a 12 volt electric motor which is operated by the glove compartment lid release switch.

The glove compartment lid cannot be opened when the following occurs:
- the vehicle is being driven using the green valet key and the vehicle is in the valet mode
- the vehicle is centrally or double locked
- the vehicle is locked with the front door lock cylinder, when in the valet mode

The glove compartment lid opening will also be inhibited if:
- the ignition key has been removed from the ignition lock for 40 minutes and the driver door has not been opened or closed
- the ignition key has been removed from the ignition lock for 30 minutes and the drive door has been opened and closed