Description

Information and Message Center

OPERATION
The information and messages which can be displayed in the instrument cluster are mainly generated from other system control modules. When a system control module detects a change or a fault which is tagged to generate a message, an electronic signal is sent via the medium or high speed CAN (controller area network) buses to the instrument cluster, which displays the message. If more than one message is requested the instrument cluster displays them in order of priority.

DESCRIPTION

Odometer and Trip Meter
The trip computer memory stores data for a journey or series of journeys until it is reset to zero.
The odometer is located in the LH (left-hand) side of the TFT screen. In addition to displaying the total distance the vehicle has travelled, this area of the display can also show the following information:
- Odometer
- Trip distance
- Trip average speed
- Trip average fuel consumption
- Instantaneous fuel consumption
- Range available on remaining fuel.
The above selections are shown in the order in which they appear. The selections can be made by pressing the trip button on the end of the LH (left-hand) steering column multifunction switch repeatedly until the option required is reached.
There are 3 independent trip recordings available to view; A, B and automatic. The instrument cluster menu is used to select which trip recording is displayed. The A and B memories can be set independently, while the Auto trip will reset after every ignition cycle as the vehicle moves.
The automatic trip is always available and is reset each time the engine is started and the vehicle moves. Previous trips can be added to form a continuous trip recording by pressing and releasing the trip button on the end of the LH (left-hand) steering column multifunction switch when the automatic trip information is displayed. The message center will confirm that the previous journey information has been added and pressing and holding the trip button for 3 seconds will add the data. The previous trip information can also be deleted by pressing and releasing the trip button when the automatic trip information is displayed. The message center will confirm deletion of the previous journey data and pressing and holding the trip button for 3 seconds will delete the previous trip information.
Trip A and B can be reset by the driver at any time. When the required trip information is displayed, pressing and holding the trip button for 3 seconds will erase the previous trip information stored. Resetting trip A or B will not affect the other trip information, for example, if trip A is reset, trip B will retain its information until it is reset.

Ambient Temperature
The ambient temperature is displayed in the LH (left-hand) side of the TFT screen. The temperature can be displayed in degrees F or C and this is selectable by the driver using the instrument cluster menu.
If the external temperature falls to 4°C (39°F) or below, the external temperature display is accompanied by an orange snowflake symbol.

Navigation Information
The navigation system can display information in the LH (left-hand) side of the instrument cluster. When navigation information is displayed, the fuel and engine temperature gages are removed and the Time, ambient temperature, trip, telephone or audio information is removed while the navigation information is displayed.

Message Center
The message center is located in the RH (right-hand) side of the TFT screen. Other information displayed in this area may be temporarily removed to allow for the message to be displayed.
The majority of messages are generated by the cluster which monitors system status via the bus systems and displays system information messages as requested by the controlling module. Other system control modules are also capable of generating messages to display system status. Some messages are accompanied by a chime, which is requested by the control module generating the message and generated by the instrument cluster via the sounder, which is located on the top of the cluster.
The driver can view system status messages which are current in the instrument cluster by using the instrument cluster menu and selecting the 'Show Warnings' menu selection.
The messages are displayed in a language applicable to the vehicle market configuration and can be changed using the instrument cluster menu.

Gear Position Display
The gear position is displayed in the tachometer display on the RH (right-hand) side of the TFT screen. It shows the current selector position P, R, N, D or S. When the transmission is in manual Dynamic Mode, the display will show the currently selected gear ratio 1, 2, 3, 4, 5 or 6 in the LH (left-hand) side of the TFT screen, replacing the audio, telephone or navigation displays.
The gear position display is controlled by the TCM (transmission control module). The gear position is illuminated in response to CAN (controller area network) bus messages from the TCM (transmission control module).

Service Interval Indicator
The Service Interval Indicator is displayed in the message center. The indicator displays information calculated by the ECM (engine control module) to calculate the remaining distance to the next service based on the amount of fuel used since the last service interval reset.
The ECM (engine control module) counts down the distance to engine service and the instrument cluster rounds this down to the nearest 50 miles (KM). The fuel used based count down starts from 3200 miles (km) displaying the required figure in the trip computer message center, for example 'Service Required in 1950 miles (km)'. When the ECM (engine control module) has calculated the distance to service is 0 miles (km), the will request the instrument cluster to display 'Service Required' in the message center.
The ECM (engine control module) also monitors and calculates when the time to the next oil service is required and when an oil service is required, 'Service Required' is displayed in the message center. This message takes priority over the distance to service calculation.
The service information is displayed in the message center for 4 seconds at each ignition cycle. There is no minus figure if the service distance is exceeded, 'Service Required' is displayed, via a CAN (controller area network) bus message from the instrument cluster, until the ECM (engine control module) service counter is reset using an approved Jaguar diagnostic system.