Navigation System (for HDD)
NAVIGATION: NAVIGATION SYSTEM (for HDD): SYSTEM DIAGRAM
1. MOST NETWORK COMMUNICATION LINE
2. AVC-LAN COMMUNICATION LINE
3. OTHER
SYSTEM DESCRIPTION
1. NAVIGATION SYSTEM OUTLINE
(a) Vehicle position tracking methods
It is essential that the navigation system correctly tracks the current vehicle position and displays it on the map. There are 2 methods to track the current vehicle position: autonomous (dead reckoning) and GPS* (satellite) navigation. Both navigation methods are used in conjunction with each other.
*: GPS (Global Positioning System)
HINT
The combination of autonomous and GPS navigation makes it possible to display the vehicle position even when the vehicle is in places where the GPS cannot receive a signal. When only autonomous navigation is used, however, the mapping accuracy may slightly decrease.
(b) Autonomous navigation
This method determines the relative vehicle position based on the driving track determined by the gyro located in the display and navigation module display and the vehicle speed signal.
(1) Gyro sensor
Used to calculate the direction by detecting angular velocity. It is located in the display and navigation module display.
(2) Vehicle speed signal
Used to calculate the vehicle driving distance.
(c) GPS* navigation (Satellite navigation)
This method detects the absolute vehicle position using radio waves from GPS satellites.
*: GPS satellites were launched by the U.S. Department of Defense for military purposes.
(d) Map matching
The current driving route is calculated by autonomous navigation (according to the gyro sensor and vehicle speed sensor) and GPS navigation. This information is then compared with possible road shapes from the map data in the hard disk drive and the vehicle position is set onto the most appropriate road.
(e) Touch switch
Touch switches are touch-sensitive (interactive) switches operated by touching the screen. When a switch is pressed, the outer glass bends in to contact the inner glass at the pressed position. By doing this, the voltage ratio is measured and the pressed position is detected.
2. DVD (DIGITAL VERSATILE DISC) PLAYER OUTLINE (for DVD Changer Models)
(a) The DVD player can only play DVD videos, DVD audio and video CDs that have any of the following marks:
(1) Precaution for use of discs
NOTICE:
* PAL or SECAM color television standard discs cannot be played (only NTSC discs can be played).
* Keep the discs away from dirt. Be careful not to damage the discs or leave fingerprints on them.
* Hold discs by the outer edge and center hole with the label side up.
* Leaving the disc exposed halfway out of the slot for a long time after pressing the disc eject button may cause deformation of the disc, making the disc unusable.
* Do not use odd-shaped discs because these may cause player malfunctions.
* Do not use discs whose recording portion is transparent or translucent because they may not be inserted, ejected or played normally.
* DualDiscs that mate DVD recorded material on one side with CD digital audio material on the other cannot be played.
(b) Cleaning
NOTICE:
Do not use a lens cleaner because it may cause a malfunction in the pickup portion of the player.
(1) If dirt is on the disc surface, wipe it clean with a soft dry cloth such as an eyeglass cleaner for plastic lenses from the inside to the outside in a radial direction.
NOTICE:
* Pressing on the disc by hand or rubbing the disc with a hard cloth may scratch the disc surface.
* Use of solvents such as record spray, antistatic agents, alcohol, benzine, thinners or a chemical cloth may cause damage to the disc, making the disc unusable.
3. "Bluetooth" OUTLINE
(a) "Bluetooth" is a trademark owned by Bluetooth SIG. Inc.
(b) "Bluetooth" is a wireless connection technology that uses the 2.4 GHz frequency band.
HINT
The communication performance of "Bluetooth" may vary depending on obstructions or radio wave conditions between communication devices, electromagnetic radiation, communication device sensitivity or antenna capacity.
(c) Hands-free function
(1) The "Bluetooth" built-in radio receiver assembly and a "Bluetooth" compatible cellular phone*1 can be connected using a "Bluetooth" wireless connection. This enables use of the hands-free function on the cellular phone even if the phone is in a pocket or bag. For this reason, it is not necessary to use a connector or cable to connect the cellular phone.
*1: Some versions of "Bluetooth" compatible cellular phones may not function.
4. RBDS FUNCTION OUTLINE (BROADCAST IN NORTH AMERICA ONLY)
The Radio Broadcast Data System (RBDS) is broadcast through conventional FM radio broadcasts. Information such as song names, traffic information, broadcast station names, etc. can be received.
5. SDARS SYSTEM FUNCTION OUTLINE (BROADCAST IN NORTH AMERICA ONLY)
Satellite Digital Audio Radio Service (SDARS) is a satellite digital radio broadcast provided by Sirius XM Radio Inc. The broadcast (pay-type) is performed through satellites and terrestrial repeater networks. Several unique channels are available, and even if a vehicle changes locations, the same information can be received without breaks. Information such as song names, broadcast station names, etc. can be received. Also, additional services may also be available.
NOTICE:
To receive audio-visual pay-type broadcasts, the customer must enter into a pay-type contract with XM Satellite Radio Inc. After entering into a contract, registration of the XM Radio ID is required. Also, if parts are replaced, the XM Radio ID must be re-registered.
6. COMMUNICATION SYSTEM
(a) MOST Network Outline
(1) Navigation system components communicate with each other via a MOST network.
(2) The MOST network uses a shielded twisted pair of wires for its communication lines.
(3) The master unit of the MOST network is the navigation ECU (display and navigation module display).
(4) MOST communication lines connect each slave unit centering around the master unit to form a MOST network ring.
(5) The master unit sends a wake-up signal to activate each slave unit connected to the MOST network.
HINT
If a short or open circuit occurs in the MOST circuit, communication will be interrupted and the system will not operate normally.
(b) AVC-LAN Outline
(1) Components of the navigation system communicate with each other via the AVC-LAN.
(2) The AVC-LAN uses a twisted pair of wires for its communication lines.
(3) The master unit of the AVC-LAN is the navigation ECU (display and navigation module display).
HINT
* The display and navigation module display has enough resistance (60 to 80 Ohms) necessary for communication.
* If a short or open circuit occurs in the AVC-LAN circuit, communication is interrupted and the system will not operate normally.
7. DIAGNOSTIC FUNCTION OUTLINE
(a) The navigation system has a diagnostic function (the result will be displayed on the master unit or the Techstream).
8. DIAGNOSIS DISPLAY DETAILED DESCRIPTION
HINT
* This section contains a detailed description of displays in diagnostic mode.
* Illustrations may differ from the actual vehicle screen depending on the device settings and options. Therefore, some detailed areas may not be shown exactly the same as on the actual vehicle screen.
(a) Service Menu Screen
HINT
Each item is grayed out or not displayed based on the device settings.
(b) Failure Diagnosis Screen
HINT
Each item is grayed out or not displayed based on the device settings.
(1) System Check Mode Screen
* *1: Node position number for devices connected to the MOST network.
HINT
MOST node position numbers are provided for devices connected to the MOST network.
* *2: Device Name List No. 1
HINT
* Device Name List No. 1 displays some of the devices that make up the navigation system.
* The names of the components from Device Name List No. 1 are shown in the following table.
* *3: Check Result
HINT
* Result codes for all devices are displayed.
* When "MOST" is displayed for the result, select the "MOST" switch to display the "MOST Line Check" screen.
* Changing to the "MOST Line Check" screen is possible only when "MOST" is displayed for the result.
* *4: Memory Clear
HINT
* Present and history DTCs and registered connected device names are cleared.
* Press the "Memory CLR" switch for 3 seconds.
* *5: Recheck
HINT
* A system check will be performed again after the memory is cleared.
* The "Recheck" switch will dim during a system check.
* *6: Device Name List No. 2
HINT
* Device Name List No. 2 displays some of the devices that make up the navigation system.
* The names of the components from Device Name List No. 2 are shown in the following table.
(2) Unit Check Mode Screen
Screen Description:
(3) MOST Line Check Screen
HINT
* The inspection will be performed at the time the screen changes from "System Check Mode" to "MOST Line Check".
* The master unit checks the connection of each device on the MOST network.
* *1: Node position number for devices connected to the MOST network.
* *2: Device Name List
HINT
* Device Name List displays some of the devices that make up the navigation system.
* The names of the components from Device Name List are shown in the following table.
* *3: Check Result
HINT
* The master unit displays the check result on the screen based on the response information from each slave unit.
* Result codes for all devices are displayed.
* The device name and result will not be displayed if there is no system registration record and no response for the connection check during the MOST line check even if the device is connected to the MOST network.
(c) Function Check/Setting Screen
HINT
Each item is grayed out or not displayed based on the device settings.
(1) Microphone & Voice Recognition Check Screen
Screen Description:
HINT
* The microphone is active at all times when this screen is displayed.
* Turn off the blower motor of the air conditioning system before selecting the recording switch when performing the microphone & voice recognition check. If an outlet of the air conditioning system is facing the microphone, noise may be recorded.
* While recording or playing, the switches other than the stop switch cannot be selected.
* When no recording is present, the play switch cannot be selected.
* Recording will stop after 5 seconds or when the stop switch is selected.
(2) GPS Information Screen
* *1: Satellite information
HINT
Information from a maximum of 12 satellites is displayed on the screen. This information includes the target GPS satellite number, elevation angle, direction and signal level.
* *2: Receiving condition
Screen Description:
* *3: Measurement information
Screen Description:
* *4: Position information
Screen Description:
* *5: Date information
Screen Description:
(3) Vehicle Sensors Screen
Vehicle Signal:
Sensor Signal:
HINT
Signals are updated once per second only when vehicle sensor signals change.
(4) Vehicle Signal Check Mode Screen
Screen Description:
HINT
* Only items sending vehicle signals will be displayed.
* This screen is updated once per second when input signals to the vehicle are changed.