Information and Message Center (G427253)

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The instrument cluster is an electronic device which receives digital or analog signals via hardwired or bus systems for instrumentation operation.

Two variants of the instrument cluster are used; high line and low line. Both variants also differ depending on market specification, engine fitments and features fitted to the vehicle. For additional information, refer to: Instrument Cluster (413-01 Instrument Cluster, Description and Operation).

The instrument cluster is an electronic device which receives digital or analog signals via hardwired or bus systems for instrumentation operation.

The information display, which shows odometer, trip, gear position and mode data, is applicable to both high and low line instrument clusters. The message centre is only available on high line instrument clusters.

The message centre is an Liquid Crystal Display (LCD) located in a central position at the bottom of the instrument cluster. The LCD has a viewable area of 71 mm X 36 mm with a pixel size of 0.54 mm X 0.54 mm. When active, the message centre is illuminated as follows:

• At ignition on
• At ignition off when all current messages are being displayed to the driver
• At ignition off for a period of 20 seconds after the last message is displayed, e.g. 'KEY IN' or 'LIGHTS ON' warnings. At ignition off, each current message is displayed in turn for 3 seconds

When the ignition is switched on and the lights are off, the message centre will illuminate at full, normal brightness. If the lights are switched on, the intensity of illumination is reduced to a level determined by the PWM dimmer control located on the lighting control switch.

The majority of messages are generated by the vehicle subsystem modules on receipt of CAN bus message signals. The instrument cluster identifies the signals and displays the appropriate message in the message centre.

Most messages are accompanied by a chime or series of chimes which is requested by the module generating the message. The chime is emitted by a sounder located within the instrument cluster.

The driver can view current system status messages by scrolling through the trip computer functions to replay mode. This is achieved by pressing the 'I' button on the LH column multifunction switch until the messages are displayed. If messages are current an 'I' is displayed in the message centre.

Message Centre Display Arbitration

When the ignition is switched on, the message centre displays the system check message for 3 seconds. If the ignition is switched off during this period, the display goes off.

After the system check, the message centre shows the normal display (display mode 3E, see following section for mode descriptions). The display shows the ambient temperature, adaptive cruise information (if applicable) and trip computer information. This display format is changed if the driver switches the ignition off or the instrument cluster detects a condition which needs to be relayed to the driver, low washer fluid for example. Driver intervention has the highest priority. If a driver request and a warning condition become active at the same time, the driver request will be displayed first.

If an adaptive cruise set-up message is received, the display will change to display mode 3 D or E (see following section for mode descriptions). This will display for 3 seconds when the display changes back to the normal display.

If a Terrain Response™ message is received, the display will change to a mode 3 display, appropriate for the additional information to be displayed. The instrument cluster reviews the information required to be displayed and shows the appropriate format.

Display Modes

The message centre has five different display modes. Each mode is displayed depending on vehicle operating conditions and driver requests. The display modes are detailed in the following table:

Display Mode 0

This mode is entered when the ignition is off and the CAN bus system is 'asleep' and no characters or symbols are displayed. This mode is exited by switching the ignition on or if the driver selects the 'Customer Settings' mode.

Display Mode 1

This mode displays information to the driver and provides the driver with the option to change certain settings for the vehicle. The display is a full screen format. A number of displays are available to allow the driver to customise various vehicle functions. Refer to 'Customer Settings' in this section for further details.

Display Mode 2 - System Start-up

When the ignition is switched on, the LCD shows the 'SYSTEM CHECK IN PROGRESS' message. This message is displayed during the indicator lamp test period for 3 seconds after the ignition on is sensed. When the ignition is switched off, the LCD returns to the display mode 0.

Display Mode 3

Display mode 3 is the normal operating mode for the message centre. There are seven different display formats (A to G) which cover all possible display formats. The seven displays are described below:

• A = Display shows: Terrain Response™ Mode icon; Steering Wheel Direction Icons; Trip computer/Warning Messages
• B = Display shows: Terrain Response™ Modes (Active mode in reverse image); Terrain Response™ description message
• C = Display shows: Active Terrain Response™ Mode icon; Terrain Response ™ Description message; Trip Computer/Warning Messages
• D = Display shows: Active Terrain Response™ Mode icon; Ambient Temperature; Text/Information/Advice/Warnings; Adaptive Cruise Control (if applicable)
• E = Display shows: Ambient Temperature; Adaptive Cruise Control (if applicable); Text/Information/Advice/Warnings
• F = Display shows: Ambient Temperature; Warnings/Information
• G = Display shows: Active Terrain Response™ Mode icon; Ambient Temperature; Text/Information/Advice/Warnings

Display Mode 4

Display mode 4 is a diagnostic mode used to check for the correct function of the LCD. The mode is entered using an approved Land Rover diagnostic system and displays four differing patterns in the LCD to check that all areas of the LCD are functional.

Message Priority

The messages are assigned priorities which are defined by the effect on driving safety and functional ability of the vehicle. New messages are displayed and accompanied by a chime from the sounder. Messages are divided into three priority groups; 1, 2, and 3 as follows:

Priority Group 1

• This group of messages have a direct effect on the driving ability and safety of the vehicle, 'ENGINE SYSTEM FAULT' for example. This message would require an immediate reaction from the driver in response to the message. Priority 1 messages will also be accompanied by the appropriate warning indicator flashing and a continuous chime from the instrument cluster. If more than one priority 1 message is present, each message is displayed in turn at 3 second intervals.

Priority Group 2

• This group of messages do not directly affect the driving ability or safety of the vehicle, 'CHECK BRAKE PADS' for example. This message must be noted by the driver and the cause rectified as soon as possible. Each of these messages is displayed once at ignition on or when the fault occurs for a predetermined time period. These messages can be recalled by the driver by pressing the trip reset button for more than 3 seconds.

Priority Group 3

• This group of messages relate to low priority messages, 'WASHER FLUID LOW' for example. Depending on the message, some messages are only shown at the end of a journey to avoid annoyance to the driver. The messages will be accompanied by a chime when the ignition is switched off to alert the driver to their presence.

The messages are displayed in a language applicable to the market configuration of the vehicle and can be changed using an approved Land Rover diagnostic system. The following list shows the possible messages which can be displayed, other visual or audible warnings and a description of the message.

Some messages are accompanied by graphic icons in addition to the message text.

Ambient Temperature

The external ambient air temperature is measured by a sensor located on the right hand side of the bonnet locking platform, behind the front grill. The sensor is connected to the HEVAC module. The HEVAC module outputs temperature messages on the CAN bus which are used by the instrument cluster to display the current ambient temperature.

The message centre displays the ambient temperature in the top right hand corner of the LCD display. The temperature is displayed until the message centre is required to display system information. When system information has been displayed, the ambient temperature will reappear. The temperature is displayed in ºF or ºC depending the market configuration of the vehicle. The driver can also change the temperature reading using the 'Customer Settings' function.

Cold Warning Indication

When the ambient temperature is being displayed, if the temperature falls to 3ºC (37.4ºF) or below, the cold warning symbol will display. The cold warning symbol is in the form of a snow flake and will flash on and off, five times at a frequency of 2Hz. An audible warning will also be emitted by the instrument cluster to alert the driver. After the fifth flash of the symbol, the display will change back to the current ambient temperature.

The cold warning will only be displayed once during an ignition cycle. If the ambient temperature rises to 6ºC (42.8ºF) or above and then subsequently falls to 3ºC (37.4ºF) or below during the same ignition cycle, the warning will be repeated.

If the display mode changes to a mode which does not display the ambient temperature during the warning period, the cold warning will be cancelled.

The information display is an Liquid Crystal display (LCD) located on the right hand side at the bottom of the instrument cluster. The LCD has a viewable area of 43 mm X 20 mm with a pixel size of 0.54 mm X 0.54 mm. When active, the information display is illuminated as follows:

• Pressing of the Trip button will cause the odometer to illuminate and the odometer and trip distance only will be displayed for a period of 20 seconds
• Ignition on will cause the odometer to illuminate with the full functions displayed

When the ignition is switched on and the lights are off, the information display will illuminate at full, normal brightness, controlled by the ambient light sensor. If the lights are switched on, the intensity of illumination is reduced to a level determined by the PWM dimmer control located on the lighting control switch.

The data shown in the information display is provided to the instrument cluster from other subsystem modules in the form of CAN bus messages. The odometer and trip meter information is derived from the ABS module, the transmission information is supplied from the transmission control module for automatic transmission vehicles or from the transfer box control module for manual transmission.

Odometer

The odometer displays the total distance which the vehicle has travelled. This is calculated by a microprocessor in the instrument cluster using wheel speed messages from the ABS module.

The odometer display can show 6 characters and distances up to 999,999 miles or kilometres. When the ignition is switched off, the odometer reading can be displayed by pressing the trip rest button. The reading will illuminate for a short time before extinguishing.

The total distance travelled is recorded in the instrument cluster Electronically Erasable Programmable Read Only Memory (EEPROM) and the Random Access Memory (RAM). This ensures that the total distance is not lost if the battery is disconnected. The distance is read and stored every 2 kilometres or miles travelled.

Trip Meter

The trip meter displays the total distance which the vehicle has travelled since the last trip meter reset. The trip meter display can show four characters, with a decimal point separating the fourth character which displays 1/10th mile or kilometre. The trip meter can display up to 999.9 miles or kilometres. When this figure is exceeded, the trip display starts again from 000.0 miles or kilometres.

The trip meter can be reset by pressing the trip reset button on the instrument cluster for more than one second. The trip data is stored in the instrument cluster RAM but not in the EEPROM, therefore, if the battery is disconnected, the trip data will be lost and the display will show 000.0 when the battery is reconnected.

Gear Position Indicator

Automatic Transmission

The gear position indicator shows the current selector lever position for the automatic transmission. During normal operation the display will show 'P' for Park, 'R' for reverse, 'N' for Neutral and 'D' for Drive.

When the transmission is operated in 'CommandShift™' mode, the display shows the currently selected manual gear; 1, 2, 3, 4, 5 or 6.

The gear position indicator can also display automatic transmission fault information. The following letters are displayed to relay the fault type to the driver:

• 'F' - Transmission Control Module (TCM) has a fault and is using the default limp home mode
• 'H' - TCM has a fault, the default limp home mode is active and the transmission has reached an overheat temperature of more than 137ºC (278ºF)
• 'E' - TCM has disabled CAN bus transmission because of a CAN bus failure or because of a transmission overheat temperature of more than 140ºC (284ºF).

PRND and Sport Display

The PRND display is only active on vehicles with automatic transmission. The instrument cluster receives CAN bus messages from the TCM for the current selector lever position. This information is used by the instrument cluster to display the current selector lever position.

If the transmission selector lever is moved to the SPORT position, the term 'Sport' is displayed in the LCD. If the selector lever is subsequently moved forward or backwards the transmission operates in 'CommandShift™' mode, the 'Sport' display goes off and the gear position indicator displays the current selected manual gear.

Service Interval Indicator (SII)

The service interval indicator is displayed in the information display. This provides information to the driver warning of an impending service requirement.

The service interval is displayed for 3 seconds when the ignition is switched on providing the service interval threshold has been reached. The service interval is reset by the dealer using an approved Land Rover diagnostic system or a manual reset procedure and, once set, counts down the mileage and time in days to the next service.

The service interval varies depending on market and vehicle engine fitment. In some Eastern European countries, South American countries, Middle East and African countries and some Asia Pacific countries the SII is disabled.

Two levels of service warning are provided; remaining distance and periodic inspection.

Remaining Distance

The remaining distance is calculated by the instrument cluster by using the current odometer value and the last service reset odometer value. The instrument cluster uses these two values to calculate the distance remaining to the next service. The remaining distance value is used to display the oil service requirement.

The mileage is displayed to the nearest 50 Km or 25 miles depending on the market configuration of the vehicle. If the service interval passes zero without being reset, the instrument pack will continue counting down and the remaining distance display will show a negative (-) value.

The trigger point for displaying the remaining distance is 600 miles (1000 km) or 30 days or less depending on the market configuration of the vehicle and is contained within the Car Configuration File (CCF).

Driver Alert

When an ignition on signal is received by the instrument cluster, the cluster software performs a check to establish if any or both of the driver service alert thresholds have been reached. If a driver alert threshold has been enabled, the applicable service information will be displayed in the information display for 5 seconds. After the 5 second display has elapsed, the information display shows the normal odometer and trip information.

Reset Procedure

There are two ways of resetting the service interval indicator. An approved Land Rover diagnostic system can be connected to the vehicle and a diagnostic routine performed or a manual reset procedure can be performed using the trip reset button on the instrument cluster.

Manual Reset Procedure

1. Press and hold the trip reset button.
2. Turn the ignition switch on to the ignition position II.
3. C. If the SII function is enabled the information display will flash 'SERVICE' for 5 seconds and then display 'SERVICE' constantly. If the SII function is not enabled the information display will show the normal odometer and trip information.
4. D. If the trip reset button is released within 10 seconds of entering the reset mode, the information display will show 'DIST'.
   1. If the trip reset button is not released after 10 seconds the instrument cluster will exit the manual reset procedure.
5. E. If the oil service value is to be reset, press the trip reset button within 10 seconds of releasing it and hold for more than 5 seconds. The information display will show 'RST' for 5 seconds and then reset the oil service value, the display will then show ‘END’.
6. F. If the trip reset button is pressed for 5 seconds the display will exit the reset routine.
7. G. If the trip reset button is not pressed for more than 10 seconds, then the information display will exit the reset routine.

The customer settings procedure allows the driver to adjust certain vehicle settings to change the functionality of selected vehicle functions.

The settings are stored in the instrument cluster EEPROM. Each vehicle has a factory set car configuration file which defines the settings for selected vehicle functions. The factory settings are retained and the system can be changed back to the factory default settings by either the dealer or the driver at any time.

The customer settings system is controlled by CAN bus message inputs and outputs from the instrument cluster, the Central Junction Box (CJB), the ABS Module and the Integrated Head Unit (IHU). The following table details the modules and their associated function within the settings system.

The following systems/functions support the customer settings system.

• Central Junction Box (CJB)
• Instrument cluster
• Memory control module
• Navigation control module
• Interior lights (CJB function)
• Exterior lights (CJB function)
• Central door locking (CJB function).

Customer Settings Functionality

The customer settings menu is entered by pressing and holding the trip computer button on the left hand multifunction switch stalk for more than 3 seconds. For reasons of safety, the settings menu will only be displayed if the vehicle is stationary (vehicle speed signal must be below 1.8 mph (3 km/h)). This is to prevent driver distraction when operating the system. At speeds above 1.8 mph (3 km/h) the settings screen is not displayed.

Once the instrument cluster has entered the settings mode, the selections can be scrolled through in turn using the ICE radio control switches located on the steering wheel. The radio search up and down buttons |<< >>| allow for selection through the menus. The radio volume switches +/- select the values for the current menu displayed.

When the settings menu is entered, the message centre shows the 'SETTINGS' welcome message.

This display allows the driver the option of scrolling through the settings menus or exiting the settings function.

The driver can select the first settings menu by pressing the radio search button >>| or the last settings menu by pressing the radio search button |<<. After a selection is made, the setting will be saved by either proceeding to the next menu or exiting the customer settings menu. Pressing the trip computer button at any time will exit the customer settings system.

If a menu parameter is changed, it will be automatically saved when the next menu is selected or the customer settings menu is exited.

TRIP DISTANCE UNITS

The 'TRIP DISTANCE UNITS' menu allows the driver to adjust the units in which the trip distance is displayed in the trip computer display. The units can be changed using the steering wheel + or - buttons.

The menu allows the driver to select the following units:

• MILES (mph) (default)
• KM (Km/h)

FUEL USAGE UNITS

The 'FUEL USAGE UNITS' menu allows the driver to change the units in which the fuel consumption is displayed in the trip computer. The units can be changed using the steering wheel + or - buttons.

The menu allows the driver to select the following units:

• MPG (default)
• LITRE/100KM
• KM/LITRE

TEMPERATURE DISPLAY UNITS

The 'TEMP. DISPLAY UNITS' menu allows the driver to change the units in which the external temperature is displayed in the message centre. The units can be changed using the steering wheel + or - buttons.

The menu allows the driver to select the following units:

• Degrees C (default)
• Degrees F

PROGRAMMABLE OVERSPEED WARNING

The 'OVERSPEED WARNING' menu allows the driver to set the overspeed warning threshold. The threshold can be changed using the steering wheel + or - buttons.

The menu allows the driver to select the following:

• KM/H - 10 to 250 Km/h in increments of 5 Km/h. The default value is OFF.
• MPH - 10 to 140 mph in increments of 5 mph. The default value is OFF.

If the units are changed from miles to kilometres or visa versa, the overspeed warning value will go to the default OFF value.

HEADLAMP TIMER

The 'HEADLAMP OFF DELAY' menu allows the driver to adjust the delay period for the headlamp delay after the ignition is switched off function. The delay period can be changed using the steering wheel + or - buttons.

The menu allows the driver to select the following delay periods (in seconds):

• 30 (default)
• 60
• 120
• 240

DOORS LOCK ON DRIVEAWAY

The 'DRIVE AWAY DOOR LOCKING' menu allows the driver to disable or enable the door automatic lock function. The feature can be changed to on or off using the steering wheel + or - buttons.

The menu allows the driver to select the following:

• OFF
• ON (default)

MIRROR DIP IN REVERSE (if fitted)

The 'REVERSE MIRROR DIP' menu allows the driver to disable or enable the automatic exterior mirror dip in reverse function. The feature can be changed to on or off using the steering wheel + or - buttons.

The menu allows the driver to select the following:

• OFF
• ON (default)

LAZY ENTRY (if memory module fitted)

The 'LAZY ENTRY' menu allows the driver to disable or enable the lazy entry function which moves the exterior door mirror and the seat position to that set by the driver. The memory positions are stored in the memory module and the individual settings are recognised from the ignition key identification. The feature can be changed to on or off using the steering wheel + or - buttons.

The menu allows the driver to select the following:

• OFF (default)
• ON

RESTORE FACTORY SETTINGS

The 'RESTORE DEFAULT SETTINGS' menu allows the driver to change all customer settings menus to the factory default settings. The settings are programmed into the Car Configuration File (CCF) and cannot be overwritten. The defaults can be reset by selecting 'Yes' using the steering wheel + or - buttons.

The menu allows the driver to select the following:

• YES
• NO (default)

The instrument cluster can generate audible warnings to alert the driver to a displayed message and change of vehicle operating condition. The audible warning is generated by a sounder located within the instrument cluster. The audible warnings are categorised into one of three types; warning message \ indicator lamp alert tones, system status tones and turn signal indicator status tones. The following warning chimes are produced by various vehicle subsystems:

• Lights on warning
• Seat belt warning
• Turn signal indicator/hazard warning indicator warning
• Overspeed warning
• Seat memory warning
• Front parking aid warning
• Alarm system warning
• Key in warning
• Engine coolant over temperature warning
• Air suspension warning
• Tyre pressure monitoring warning
• Adaptive cruise warning
• Electronic park brake warning
• Automatic transmission warning
• Transfer box warning
• Rear differential warning
• Brake pad wear warning
• Low washer fluid warning
• ABS system fault warning
• Brake system fault warning
• Dynamic Response fault warning
• Hill descent control fault warning
• Hill descent control active warning
• Hill descent control information warning
• Supplementary restraint system warning
• Engine management system warning
• Low engine oil pressure
• Trip computer overspeed
• Water in fuel warning.

The audible warning takes the form of either a single chime, a double chime or a repeating chime. The audible warnings are initiated by a CAN bus message from the requesting subsystem control module or by the instrument cluster software.

General

The instrument cluster contains software which enables the use of an on-board trip computer. The computer allows the driver to access information for current fuel usage, current journey length, average speed and estimated distance on fuel remaining. The information is displayed in the lower part of the message centre, providing no other high priority messages are being displayed. If no messages are being displayed or the displayed message is of a low priority, the trip computer will be permitted use of the message centre.

The driver is able to access the computer and change some parameters which control the information display using the trip computer button on the left hand multifunction switch stalk.

Trip Computer Functionality

When the engine is started the instrument cluster enters a diagnostic mode and displays a 'System Check in Progress' message in the message centre. Once complete, the instrument cluster then displays any warning messages, i.e.; DRIVER'S DOOR OPEN, in priority order.

When any applicable messages have been displayed the message centre displays information in mode 3E. Pressing the trip computer button once will display the customer settings menu, if the vehicle is stationary. If the vehicle is moving this display will be ignored and the trip computer information will be displayed in the following order:

• Trip Distance
  • The trip distance since the last reset is displayed.
  • Pressing the trip computer button for more than 2 seconds will reset the trip distance. The display will show dashes for 3 seconds and then change to zeros.
  • Pressing the trip computer button for less than 2 seconds will change the display to the next feature.
• Range
  • The range is displayed showing the distance which can be travelled using the fuel remaining in the fuel tank.
  • Pressing the trip computer button for less than 2 seconds will change the display to the next feature.
• Average Fuel Consumption
  • The average fuel Consumption is displayed.
  • Pressing the trip computer button for more than 2 seconds will reset the average fuel Consumption. The display will show dashes for 3 seconds and then change to zeros.
  • Pressing the trip computer button for less than 2 seconds will change the display to the next feature.
• Average Speed
  • The average speed is displayed.
  • Pressing the trip computer button for more than 2 seconds will reset the average speed. The display will show dashes for 3 seconds and then change to zeros.
  • Pressing the trip computer button for less than 2 seconds will change the display to the next feature.
• Overspeed Warning
  • The overspeed warning is only displayed if enabled in the customer settings.
  • Pressing the trip computer button for more than 2 seconds will turn the overspeed warning off. A second press of the trip computer button for more than 2 seconds will enable the overspeed warning.
  • Pressing the trip computer button for less than 2 seconds will change the display to the next feature.
• Warning Messages
  • Any warning messages are now displayed. If more than one message is present, each message will be shown for 3 seconds. When all messages have been shown, the display will go blank momentarily, before the display reverts to the mode 3E.
  • Pressing the trip computer button for less than 2 seconds during the warning message display will cancel the trip computer and the message centre will display the mode 3E.