Part 2
Navigation System
RF Transmission
RF transmission is generally transmitted from roadside beacons mainly on expressways. The information transmitted is:
^ Traffic congestion
^ Travel time to next intersection
^ Traffic conditions in surrounding areas and expressway turn offs
^ Traffic accidents
^ Speed limits
^ Lane regulations
^ Tire chain regulations
^ Parking availability at expressway service areas and parking areas.
Infra-Red Transmission
Infra-red transmissions are transmitted from road side beacons on major trunk roads. The information transmitted is:
^ Traffic congestion and travel time
^ Traffic accidents
^ Breakdowns
^ Road work restrictions
^ Parking availability.
FM Multiplex Transmission
The FM (frequency modulation) transmissions are broadcast as part of the normal RDS (radio data system) FM (frequency modulation) transmissions. The information transmitted is:
^ Traffic congestion and travel time for wide areas
^ Traffic accidents, road works, speed limits and lane restrictions for wide areas
^ Parking location and availability information.
VICS Receiver
The VICS receiver is located in the instrument panel, below the IHU and behind the TSD. The receiver has three connectors which provide connection to the navigation computer, the VICS beacon and the VICS antenna amplifier.
VICS Beacon Antenna
The VICS beacon is located on top of the instrument panel on the right hand side. The beacon is located in an additional base attached to the top of the instrument panel and secured with a self adhesive pad. The beacon is connected to the VICS receiver via a screened co-axial cable.
VICS Antenna Amplifier
The VICS antenna amplifier is located in the upper tail door, below the center high mounted stop lamp. The amplifier is connected to the VICS receiver via a screened co-axial cable.
Navigation System Diagnostics
NOTE:
^ The TSD physical buttons and the touch screen virtual icons can be tested using the TSD diagnostics detailed in the Audio System section. Navigation system fault codes can also be accessed from the TSD diagnostics where Dens-and the corresponding Land Rover codes are displayed.
^ Fault codes can also be retrieved using the Land Rover recommended diagnostic equipment.
^ The navigation computer only displays Dens-fault codes. Refer to the table later for the corresponding Land Rover codes or view the codes using the TSD diagnostics detailed the Audio system section.
The navigation computer has an on-board diagnostics capability to allow the functionality of the following to be tested:
^ Vehicle input signals
^ GPS (global positioning system) information
^ Reset vehicle position
^ On Screen navigation diagnostics
^ RGB color display
^ Voice output test
^ Microphone test
^ Self test.
Use the following procedure to get access to the diagnostic screens.
^ Insert the vehicle key in the ignition switch and turn to the ignition position II.
^ Once the 'CAUTION' screen has been displayed, press the 'AGREE' virtual button in the bottom right hand corner of the TSD.
^ If the screen displayed is not the navigation screen, press the 'Navigation' physical button on the TSD to enter the navigation mode. Press the 'Home' virtual icon in the bottom left hand corner of the screen to display the 'Navigation menu'.
^ In a central position at the top of the TSD, press the screen and hold for more than 5 seconds. An 'Enter Diag PIN' entry box will appear.
^ In the 'Diag PIN Entry' box, enter the diagnostic PIN entry code of '753' and press the 'OK' virtual icon on the TSD. An 'On-Screen Diagnostics' menu screen will appear.
^ The following selections can be made from the 'On-Screen Diagnostics' menu screen. Navigation Information Parts Information Manual Check Self Check
^ Navigation Information
^ Parts Information
^ Manual Check
^ Self Check
^ Once a screen display is complete, you can return to the previous menu screen by pressing the return virtual icon in the top right hand corner of the TSD.
^ Navigation Information This screen allows the following selections; Vehicle signals, GPS (global positioning system) Information, Reset Position. Vehicle/ Gyro Signals This screen displays vehicle information to check that vehicle inputs are operating correctly, e.g. parking brake, reverse detection, wheel speed input etc. Navigation computer gyro operation can also be checked by driving the vehicle and noting the change in values as the vehicle turns. GPS (global positioning system) Information This screen displays the relative positions of each satellite that the system can detect. This can vary depending on the position of the vehicle and location of buildings etc. Reset Position This screen allows the option to reset the vehicle position to the current installed map default.
^ This screen allows the following selections; Vehicle signals, GPS (global positioning system) Information,Reset Position,
^ Vehicle/ Gyro Signals
^ This screen displays vehicle information to check that vehicle inputs are operating correctly, e.g. parking brake, reverse detection, wheel speed input etc. Navigation computer gyro operation can also be checked by driving the vehicle and noting the change in values as the vehicle turns,
^ GPS (global positioning system) Information
^ This screen displays the relative positions of each satellite that the system can detect. This can vary depending on the position of the vehicle and location of buildings etc.
^ Reset Position
^ This screen allows the option to reset the vehicle position to the current installed map default.
^ Parts Information This screen displays the components fitted to the vehicle and their current status. It also displays the version of the map DVD (digital versatile disc) and the data version.
^ This screen displays the components fitted to the vehicle and their current status. It also displays the version of the map DVD (digital versatile disc) and the data version.
^ Manual Check The following selections can be made from the 'Navi Manual Check' screen: Navi RGB Test Voice Output Test Microphone Test
^ The following selections can be made from the 'Navi Manual Check' screen:
^ Navi RGB Test
^ Voice Output Test
^ Microphone Test
^ Once a screen display is complete, you can return to the previous menu screen by pressing the return virtual icon in the top right hand corner of the TSD. Navi RGB Test This screen displays the five display colors. Each color can be checked by pressing the color text virtual icon. the screen will change to the selected color to check that the screen color is displayed evenly across the whole screen area. Pressing the screen will return the color selection. Voice Output Test This screen displays the 'Navi voice Output Test' screen Two virtual icons are available to test the voice output of the system. Pressing the 'normal' icon will cause the system to emit a quiet short tone. Pressing the 'max' icon will cause the system to emit a louder short tone. Microphone Test This screen displays the 'Microphone Test' screen. This allows the voice/telephone switch on the steering wheel to be tested and also allows the microphone input to be tested. Speaking at normal level will display the input level on the screen.
^ Navi RGB Test
^ This screen displays the five display colors. Each color can be checked by pressing the color text virtual icon. the screen will change to the selected color to check that the screen color is displayed evenly across the whole screen area. Pressing the screen will return the color selection,
^ Voice Output Test
^ This screen displays the 'Navi voice Output Test' screen Two virtual icons are available to test the voice output of the system. Pressing the 'normal' icon will cause the system to emit a quiet short tone. Pressing the 'max' icon will cause the system to emit a louder short tone,
^ Microphone Test
^ This screen displays the 'Microphone Test' screen. This allows the voice/telephone switch on the steering wheel to be tested and also allows the microphone input to be tested. Speaking at normal level will display the input level on the screen.
^ Self Check The 'Self Check' screen will perform an internal diagnostic routine and display any DTC (diagnostic trouble code) found. The DTC (diagnostic trouble code) displayed is a 'Denso' DTC (diagnostic trouble code) which can be translated into a Land Rover DTC (diagnostic trouble code).
^ The 'Self Check' screen will perform an internal diagnostic routine and display any DTC (diagnostic trouble code) found. The DTC (diagnostic trouble code) displayed is a 'Denso' DTC (diagnostic trouble code) which can be translated into a Land Rover DTC (diagnostic trouble code).
The navigation computer diagnostics can be exited by turning the ignition switch to the off position and waiting for several minutes until the infotainment system powers down. This is signified by the flashing LED (light emitting diode) in the TSD audio on/off switch being extinguished when the system is shut down.
Initial Screen Display
Once powered the TSD will initially display the 'Land Rover' image for a short time followed by the road safety caution screen. This screen advises the driver that some functions are inhibited when the vehicle is moving and that local traffic regulations must be observed. After pressing the 'Agree' icon on the screen, the last displayed screen or menu is displayed. On a new vehicle, when the system is operated for the first time, the system will display the 'Home' menu to allow the user to adjust the factory default settings. The system settings are set to suit the market to which the vehicle is to be delivered. These can be changed by the customer to suit their preferences.
The infotainment system can be operated at times when the ignition key is removed from the ignition switch and is known as one hour mode.. Pressing the audio on/off button will power the system for a period of one hour. After the one hour period, the system will power down to avoid excessive drain on the vehicle battery.
The navigation system is accessed by pressing the 'Navigation' button in the top right hand corner of the TSD or pressing the 'Navigation' icon on the screen. The 'Navigation' menu will appear which gives the option to select 'On-road' or 'Off-road' navigation using one of two icons on the screen.
Navigation Operation
The navigation computer receives GPS (global positioning system) data from the satellites, via the GPS (global positioning system) antenna. The GPS (global positioning system) data is used by the navigation computer to calculate the vehicle's position. Once the driver has input the desired destination, the navigation computer can calculate a route, based on the driver's preset preferences or the system default settings, to the destination.
Full instructions on navigation system operation can be found in the Navigation Handbook supplied with the vehicle.
On-Road Navigation
If on-road navigation is selected, the driver can input the destination address, the destination post code, choose a saved address from the address book or choose a point of interest in the destination area on the applicable screen on the TSD.
The driver is then guided to the destination by a scrolling map display and voice guidance. The driver can select and change the map display scale and display type, i.e. 3D.
Off-Road Navigation
If off-road navigation is selected, the driver can input a number of waypoints and longitude and latitude destinations on the applicable screen on the TSD. The navigation computer calculates the route from and to each waypoint using the GPS (global positioning system) data.
The off-road navigation route comprises a series of waypoints which are followed sequentially. Point to point guidance is given to the first waypoint on the route. Once the first waypoint destination is achieved, the navigation computer calculates the route to the second waypoint in the route. This process is repeated until the final waypoint is reached.
Navigation System Control Diagram (Except Japan)
Navigation System Control Diagram (Japan Only)
4X4i Component Location
General
4X4I is only available on vehicles fitted with satellite navigation and provides the driver with additional vehicle status information which is displayed on the TSD. The information provides the driver with functional information relating to the vehicle powertrain and chassis and is of most benefit when driving off-road.
The TSD displays a graphical representation of the vehicle systems toprovide an easy to understand vehicle status display. The 4X4I system displays the following information:
^ Steering angle
^ Transfer box status
^ Hill Descent Control (HDC) status
^ Automatic transmission status
^ Air suspension status
^ Wheel height information
^ Compass indication
^ Venture Cam view and set up.
Touch Screen Display (TSD)
The Touch Screen Display (TSD) is located in the center of the instrument panel and is the driver control interface for the infotainment system. The TSD is connected to the MOST ring and communicates with the other components in the audio/infotainment system.
The TSD processes its own video for system operation but receives the video image data from the navigation computer via a co-axial cable for 4X4I.
The TSD also provides driver display and control of the audio system, telephone, the rear view camera, the Venture Cam, the Traffic Message Channel and the navigation system.
The 4X4I and other systems are operated by a combination of the physical buttons located on each side of the screen and the 'virtual' buttons displayed on the touch screen. For clarification, the physical buttons are referred to as 'buttons' and the touch screen virtual buttons are referred to as 'icons'.
The TSD is a touch sensitive, 800 X 600 pixels LCD (liquid crystal display) VGA screen which displays in a 15:9 aspect ratio.
Care should be taken with the TSD to ensure its correct operation:
^ The screen should be cleaned with a lightly, water moistened cloth. D-not use chemical agents or domestic products to clean the screen or any part of the surround.
^ Only use your finger to operate the touch screen. Ensure you only use one finger to avoid incorrect entries.
^ A short light press of the touch screen is sufficient. Excessive pressure can damage the screen.
Refer to the Audio section for details of the harnessconnectors related to the TSD.
System Functions
The 4X4I system uses data from other systems to obtain the displayed information. The data is received from the CAN (controller area network) and is passed to the navigation computer via the IHU and the TSD.
Steering Angle
The steering angle is obtained from information broadcast by the steering angle sensor on the CAN (controller area network). The sensor signal is used to display the orientation of the steered wheels in relation to a plan view of the chassis layout. The steering angle is displayed by one of thirteen graphics to show the full range of steering angle from lock to lock in increments of 5 degrees from the straight ahead position.
Transfer Case
The transfer case currently active setting is obtained from information broadcast by the transfer case control module on the CAN (controller area network). The display can show low range, high range or neutral selection. The selected range icon flashes if a ratio change is in progress.
When neutral is selected, the display shows an 'N'. If the transfer case is in neutral but the automatic transmission is not in neutral, the selected gear on the transmission flashes until neutral is selected on the selector lever.
Hill Descent Control (HDC)
The HDC system current operating condition is obtained from information broadcast by the ABS (anti-lock brake system)
control module on the CAN (controller area network). The display can show HDC functionality states with the HDC icon illuminated in a green or amber color. If HDC is not selected, no HDC icon is displayed.
Green Icon
^ HDC icon permanently displayed - HDC active
^ HDC icon flashing - HDC suspended
Amber Icon
^ HDC permanently displayed - HDC fault
^ HDC icon flashing - Brake fade
Automatic Transmission
The automatic transmission current selected gear is received from a CAN (controller area network) transmission from the transmission control module. The display shows the current selector lever position of P, R, N, D, 1, 2, 3, 4 or 5. The gear position is displayed in a central position above the transfer case range icon.
Air Suspension
The air suspension status information is obtained from information broadcast on the CAN (controller area network) by the air suspension control module. The display comprises six different screen displays to show all air suspension height states and transition states. During a height change the arrow head between the wheels flashes. The green line denotes the suspension position above, below or at the standard height setting. The selected height is confirmed by a symbol and text confirming the suspension status.
Wheel Height
The wheel height status information is obtained from information broadcast on the CAN (controller area network) by the air suspension control module. The wheel heights are measured by the four individual height sensors and processed by the air suspension control module.
The position of each wheel relative to the vehicle body is displayed. Upper and lower wheel travel markers are shown as white lines above and below each wheel. The positions of the wheel markers move according the air suspension height selected. When the suspension is at off-road height, the position of the travel markers move upwards to represent the 55 mm of vehicle body movement when in this mode. When the suspension is at access height, the position of the travel markers move downwards to represent the 50 mm of vehicle body movement when in this mode. When the suspension is in off-road or access height, the positions of the suspension and wheel travel markers are displayed as blue lines to show their relative positions in standard height mode.
When the maximum wheel travel is reached, the travel marker changes to an amber color and flashes for as long as the maximum travel condition exists.
Compass
The compass information is obtained from the navigation computer. The compass view is the same compass view which is also displayed when the navigation system is in off-road navigation mode. The compass view replaces the wheel and body height view in the TSD. Compass view can be accessed by pressing the compass icon on the TSD. Pressing the chassis icon reverts the display back to the chassis view.
The compass view shows a plan view of the vehicle on a compass face. Depending on the compass display mode set in the navigation system, the compass can display a rotating vehicle view which moves to indicate the heading against the fixed compass points. If the heading up mode is selected in the navigation system, the vehicle view pointer will remain fixed vertically and the compass points will rotate to indicate the vehicle heading.
Venture Cam
4X4i Control Diagram
