Description

Body Closures

NOTE:
A = Hardwired; F = RF Transmission; N = Medium Speed CAN

Luggage Compartment Lid









Luggage Compartment Lid
The opening and closing functions are controlled by the luggage compartment lid module. The module receives a permanent battery power supply from the RJB (rear junction box). To initiate the luggage compartment lid opening sequence a 'luggage compartment lid release-request' is received by the CJB (central junction box) from one of the following:
- KAM (keyless vehicle module) - signal originates from the Jaguar Smart Key
- Auxiliary lighting panel - interior luggage compartment lid button
- Rear bumper mounted - exterior luggage compartment lid button
The CJB responds with the following simultaneous actions:
- A hardwired power release to the latch actuator mechanism
- An opening signal transmitted to the power luggage compartment lid module via the medium speed CAN bus.
The processing of the opening signal by the CJB is influenced by a number of factors:
- Source of 'opening signal'
- Vehicle status: locked or unlocked
- Vehicle equipped with or without passive entry.
Once the latch is released the luggage compartment lid module actuates the motor located in the powered strut to raise the luggage compartment lid to its fully open or pre-set position. When the luggage compartment lid is in its opening cycle the automatic stop-position of the lid is functioned by a hall sensor located in the motor. The hall sensor signal transmitted to the luggage compartment lid module is synchronized with the pre-set memory indicating the stop position of the luggage compartment lid.
To close the luggage compartment lid a hardwired signal is transmitted directly to the luggage compartment lid module when the button, located on lid's closing edge is pressed. The module operates the spindle motor in the opposite direction to close the luggage compartment lid to the latch position.
When the latch engages with the striker plate a signal transmitted from the latch actuator mechanism to the luggage compartment lid module confirms the latch is engaged. The module de-activates the spindle drive and activates the power cinch motor to pull the latch closed through the last 6 mm of travel. A mechanical cable connection between the motor and latch assembly is used to complete the closing process.
If the battery is disconnected when the luggage compartment lid is closed, the stored and calibrated lid opening heights will remain stored when the battery is reconnected. However if power supply to the luggage compartment lid module is disconnected when the luggage compartment lid is open the system will not recognize the lid's position and subsequently will not function to any switch commands when power is reinstated. To re-calibrate the system, the luggage compartment lid must be moved manually to the closed position where it will perform a soft close and reset the hall sensor counters to zero.

NOTE:
If required the luggage compartment lid can be opened and closed manually.

CAUTION: DO NOT CLOSE THE LUGGAGE COMPARTMENT LID IF THE VEHICLE BATTERY IS DISCONNECTED. It is advisable to close the latch claw when working on a vehicle with the battery disconnected to prevent accidental closure.

Powered Strut

Powered strut components









The powered strut operates the swan-neck hinge on the right-hand side of the vehicle. Ball-joints positioned at each end of the strut allow it to articulate between a fixed mount on the vehicle and the moveable hinge. The powered strut opens and closes the luggage compartment lid using an electrically driven spindle located in the struts internal electric motor; the lid opening operation is also aided by spring assistance.
The spindle drive comprises an inner and outer tube where the motor and gears in the inner tube drive a threaded spindle which runs on a threaded nut fixed to the inside of the outer tube.
The spindle drive incorporates an object detection function controlled by the luggage compartment lid module. The function is similar to the anti-trap function of a closing electric window but operates in both directions. If the object detection feature is activated while the luggage compartment lid is either opening or closing, the spindle motor is reversed for a preset period.
A hall sensor, located in the spindle motor, monitors the speed of the motor. If the speed decreases below a set threshold, indicating an obstruction and increasing the motor current draw, the power feed to the motor is reversed causing the luggage compartment lid to move in the opposite direction of travel.
The amount of travel in the opposite direction, before stopping, is determined by the hall sensor count. An exception to the object detection reverse travel function occurs when the luggage compartment lid is opening through its first few degrees of travel from the latched position. In these circumstances if an obstacle is detected the luggage compartment lid stops in the position of the obstruction and no travel in the opposite direction occurs.

Luggage compartment lid release when the vehicle has a discharged battery
If the battery becomes discharged when the luggage compartment lid is shut, it will be necessary to supply power to the release circuit in order to open it.

Auxiliary power release diagram









CAUTION: Do not attempt to start the vehicle with power supplied in this way.

Luggage compartment lid release when the vehicle has a system fault
In the event of the luggage compartment lid failing to open due to a system fault there is an emergency electrical release connector situated behind the rear seat squab next to the CJB. The connector is linked to the luggage compartment lid latch actuator.
A +12 volt feed applied to the connector will power the luggage compartment lid latch actuator to an un-latched state.

Electrical release connector access location





Luggage Compartment Lid
The luggage compartment can be opened using the appropriate button on the Smart Key, or via passive entry. It can also be opened using the exterior release at the rear of the vehicle, provided the doors are unlocked and the gear selector is in Park (P).
Provided the vehicle is not locked or alarmed, the luggage compartment can also be opened using the interior release button.

Luggage compartment lid - open buttons









To close the luggage compartment, press the button on the closing edge of the luggage compartment lid.

Luggage compartment lid - close button









The luggage compartment lid can be stopped at any time during the open or close cycle by a single press on any of the control buttons. Pressing a control button once again will authorize the luggage compartment lid to continue its original cycle, or if required opposite cycle; see chart below.
The luggage compartment lid has a 'Garage Position' setting, where it is possible to set the maximum height to which the luggage compartment lid will open.
To set the required height:
- Open the luggage compartment lid to the position of the required height.
- Press and hold, for 10 seconds, the luggage compartment lid close button.
- Close the luggage compartment lid, then open again to check that it opens to the programmed height.
The maximum opening height is now set. To reset the maximum opening height to full, repeat the process, but fully open the luggage compartment lid before pressing and holding the close button.
The opening and closing control strategies are listed in the following chart:





If any object is detected, that would interfere with the closing of the luggage compartment lid; lid movement will stop and reverse a short distance. Any obstructions must be removed before pressing the close button again.
If the Jaguar Smart Key is inadvertently left inside the luggage compartment and the vehicle is locked and the alarm set, an audible warning will sound and the luggage compartment will re-open after three seconds.

NOTE:
If the Jaguar Smart Key is inside a metal box, it will not be detected by the vehicle security system.