Handles, Locks, Latches And Entry Systems (G1818068): Description: Latches

HOOD LATCHES 

Two hood latches are located on the front crossmember. A hood release lever is located below the instrument panel on the left 'A' pillar and is connected with a cable to the latches.

A hood ajar switch is attached to the right hood latch and connected to the BCM/GWM.

DOOR LATCHES 

The door latches are installed at the rear edge of each door and engage with strikers on the adjacent pillar. Each interior and exterior door handle is connected with a release cable to the corresponding door latch. In the driver door a third release cable is connected between the door latch and the concealed emergency key barrel.

Each door latch has a motor assembly that contains a locking motor, a double locking motor (market dependent), an unlock switch and an ajar switch. The motor assembly is connected to the related door module and the BCM/GWM. The door modules are connected to the BCM/GWM on the MS (Medium Speed) CAN (Controller Area Network) body systems bus.

The interior door handles are connected by a cable to the latch release mechanisms. Lock and unlock switches adjacent to each interior door handle allow the door locks to be activated from inside the vehicle. If a door is ajar, the locking feature is inhibited.

When the vehicle is locked, the locking motors disengage the door latches from the exterior handle release cables. Where fitted, the double locking motors disengage the door latches from the interior handle release cables when the vehicle is double locked. When the vehicle is subsequently unlocked, the release cables are re-engaged with the door latches.

EXTERIOR DOOR HANDLES 

The exterior door handles are attached to the exterior door panel and are secured using a front fixing hidden under the exterior door handle and a rear fixing for the bezel or key cylinder, on the driver door. A blank cover is fitted on passenger doors. When the exterior door handle is pulled, the foot turns the counterweight, which pulls on the release cable to open the latch.

Exterior door handles have separate unlock and lock sensors. The unlock sensor is located on the inner surface of the handle, the lock sensor is located on the outer surface of the handle. This detects the customers hand by capacitive signal.

The sensors can be triggered by rainfall or during carwash. If a number of repeated unlock requests are made due to rain or during car washing, the sensor algorithm will ignore further requests until there is no further water droplets/water movement creating false requests. This will occur for a period of 5 minutes. This is to prevent the vehicle battery being drained due false unlock requests.

Exterior door handle 

Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

If the Smart Key fails to lock or unlock the vehicle, slide open the side cover of the Smart Key, remove the emergency key blade and unfold. Insert the key blade into the slot at the base of the door lock cover and gently lever the key blade upwards. Carefully twist the key blade, to lever the cover off the retaining clips. Insert the key blade into the exposed lock and turn to operate the lock. If the emergency key is used to lock the vehicle, all doors are single locked but the alarm is not armed. If the emergency key is used to unlock the vehicle:

• If the alarm is not armed, all doors and the luggage compartment lid are unlocked.
• If the alarm is armed, only the driver door unlocks and the alarm is triggered. To deactivate the alarm, press the unlock button on the Smart key or press the engine stop/start switch with the Smart key inside the vehicle.
• The vehicle cannot be double locked or the alarm system armed using the emergency key.

The vehicle can be centrally locked and unlocked from inside using the Lock and Unlock switches adjacent to each interior door handle. The driver can select locking options, single point entry or drive away locking for example, from a menu available on the TS (Touch Screen).

LUGGAGE COMPARTMENT LID LATCH 

The luggage compartment lid latch is installed on the back panel of the luggage compartment and engages with a striker on the luggage compartment. The latch is released electrically by pressing the interior release switch located in the auxiliary lighting switch, the exterior release switch located above the license plate in the luggage compartment lid finisher, or the release switch on the Smart key. On NAS vehicles an emergency release handle and cable is attached to the latch. This allows the latch to be manually opened from inside the luggage compartment.

Operation of the locking motor in the luggage compartment lid latch is controlled by the LCLCM (Luggage Compartment Lid Control Module). An ajar switch in the latch provides the BCM/GWM with a status signal.

FUEL FLAP LATCH 

The latch is incorporated into the hinge of the fuel flap. Pushing and releasing the flap opens the latch. Pushing the flap closed engages the latch. The flap is locked by a pin operated by a fuel flap release motor on the fuel flap housing. Operation of the fuel flap release motor is controlled by the BCM/GWM.

The fuel flap is locked when the vehicle is locked and alarmed. The fuel flap can be opened when the vehicle is unlocked or locked:

• via an interior handle,
• via Drive away locking,
• via the lock switch on the instrument panel,
• via the external door key barrel.