- Remote control and RF receiver
- Central locking button on the front door
- Central locking switches on the instrument panel
Remote control
Pos. | spare part no | Name |
1 | - | Emergency key |
2 | - | Headlight delay function button |
3 | - | Vehicle lock button |
4 | - | Vehicle unlock button |
5 | - | Liftgate release button |
6 | - | Security alarm button |
The remote control is a sealed waterproof unit, inside of which there is a printed circuit board, a repeater (transporter) and rechargeable battery. The battery of the remote control is charged whenever it is in the start control box with the engine running.
The remote control has an emergency key hidden inside the remote control. The emergency key is used to gain access to the passenger compartment through the left front door in the event of a malfunction of the central locking system. The emergency key is also used to activate or deactivate the child-resistant rear door locks and to deactivate the front passenger's airbag. For more information, see chapter: Airbag and Pretensioner Restraint System (SRS) (501-20B Secondary Restraint System Description and Operation).
The remote control is the same for cars of all specifications. The difference lies in the preset frequency and power of the remote control. The remote control for each vehicle specification is identified by changing the ending index in the base item number:
Element number End index | Operating frequency | vehicle specification |
A# | 433 MHz | Europe and the rest of the world |
B# | 315 MHz | North American countries |
C# | 315 MHz low power | Japan and Korea |
Each remote control has a unique identification code that is programmed into the built-in repeater. The radio frequency signal from the remote control contains a unique identification code as well as a variable code. During vehicle production, unique identification codes for valid remote controls are entered into the CJB; variable codes are also synchronized with CJB.
When pressing a button on the remote control, the CJB checks for a unique identification and variable code. The CJB only responds to the RF signal from a valid remote control for the vehicle. For more information, see the chapter: Anti-Theft - Passive (419-01 Anti-Theft - Passive, Description and principle of operation).
The CJB software has 30 slots for replacement or additional remote controls. The Land Rover approved diagnostic system can be used at the workshop to communicate with the CJB for the following:
- Identification of the remote control registered in CJB.
- Activation of new remote controls.
- Deactivate existing remote controls.
- Reactivation of previously deactivated remote controls.
If the remote control variable code is out of sync with the CJB, the remote control functions will not work. Synchronization between the remote control and the CJB can be restored by starting the engine with the faulty remote control and letting it run for at least 6 minutes.
Additional buttons are located on the remote control for convenient control of the tailgate open, headlight delay and burglar alarm functions.
RF receiver
The RF receiver is located above the headlining, next to the rear dome light. The receiver operates the remote central locking system and is also used by the tire pressure monitoring system and interior lighting system.
For more information, see the chapter:
- Wheels and tires (204-04 Wheels and tires, Description and function)
- Interior lighting (417-02 Interior lighting, Description and principle of operation)
The RF receiver is the same for vehicles of all specifications. The difference lies in the preset frequency and power of the receiver. The RF receiver for each vehicle specification is identified by changing the ending index in the base item number:
Element number End index | Operating frequency | vehicle specification |
A# | 433 MHz | Europe and the rest of the world |
C# | 315 MHz | North American countries, Japan and Korea |
The remote control system receiver converts the signals transmitted by the remote control into digital messages and then transmits them via the LIN bus to the CJB.
The CJB supplies constant power to the RF receiver.
Central locking button on the front door
Both central locking buttons on the front doors activate the central locking function. When the central locking button on the front door is pressed/depressed, all vehicle doors are centrally locked/unlocked.
When the central locking button on a front door is pressed/released, the corresponding door control module sends a request to the CJB to centrally lock/unlock the vehicle. The CJB then sends a central lock/unlock command to all door control modules to lock/unlock all vehicle doors.
Central locking with the central locking button on the front door is disabled if one of the front doors is not fully closed. If the front door is not fully closed when the central locking button is pressed, the doors will be locked and then unlocked immediately.
Central locking switches on the instrument panel
Pos. | spare part no | Name |
1 | - | CLS internal release switch |
2 | - | CLS internal locking switch |
Internal locking and unlocking switches are located on the instrument panel and are intended for manual control of the vehicle's central locking system. The switches are non-latching and allow all access points to the vehicle to be centrally locked or unlocked from the vehicle interior.
Pressing the instrument panel lock or unlock switch closes the ground circuit to the CJB, which activates the door latch lock or unlock motors, liftgate latch, and fuel filler cap actuator. The doors will only respond to a central locking/unlocking command if they are fully closed. Operation of the central locking system is prohibited if one of the doors is not tightly closed.
The liftgate latch will open when the central locking switches on the instrument panel are pressed simultaneously for three seconds (while the vehicle speed must be below 8 km/h (5 mph)).
Comments on this article