System Description

NAVIGATION SYSTEM OUTLINE

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)

Fig 1: Identifying Vehicle Position Tracking Methods

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Operation	Description
Vehicle Position Calculation	The display and navigation module display calculates the current vehicle position (direction and current position) using the direction deviation signal from the gyro sensor and driving distance signal from the vehicle speed sensor and creates the driving route.
Map Display Processing	The display and navigation module display processes the vehicle position data, vehicle driving track and map data from the hard disk drive.
Map Matching	The map data from the hard disk drive is compared to the vehicle position and driving track data. Then, the vehicle position is matched with the nearest road.
GPS Correction	The vehicle position is matched to the position measured by the GPS. Then, the GPS measurement position data is compared with the vehicle position and driving track data. If the position is very different, the GPS measurement position is used.
Distance Correction	The vehicle speed signal includes error caused by tire wear and slippage between the tires and road surface. Distance correction is performed to account for this. The display and navigation module display automatically offsets the signal to make up for the difference between the distance signal and distance data of the map. The offset is automatically updated.

Fig 2: Identifying GPS Cannot Receive A Signal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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.

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.

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.

Fig 3: GPS Navigation (Satellite Navigation)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Number of Satellites	Measurement	Description
2 or less	Measurement is impossible	Vehicle position cannot be obtained because the number of satellites is not enough.
3	2-dimensional measurement is possible	Vehicle position is obtained based on the current longitude and latitude. (This is less precise than 3-dimensional measurement.)
4	3-dimensional measurement is possible	Vehicle position is obtained based on the current longitude, latitude and altitude.

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.

Fig 4: Identifying Current Driving Route
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

MULTI-DISPLAY OUTLINE
1. A pop-up type multi-display is built into the center instrument cluster finish panel assembly. Opening, closing and tilt angle adjustments of the multi-display can be performed using the multi-display switch built into the telltale light assembly.
  
  Fig 5: Identifying Multi-Display Outline
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOTE TOUCH OUTLINE
HINT:
- The navigation system is remotely controlled using the remote touch switch knob and switches.
- The remote touch is equipped with a feedback force function.
- When the remote touch switch knob is operated, the built-in 2-axis motors are controlled. The motors are used to provide feedback force for the knob according to the pointer operation displayed on the multi-display.
- The feedback force of the remote touch allows the users to select icons easily when operating the navigation system.
1. Remote Touch Switch Knob Operation
  
  Fig 6: Identifying Touch Switch Knob Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Movement of the pointer on the multi-display screen is synchronized with knob operation.
    HINT:
    - During remote touch switch knob operation, the distance that the knob moves is sent to the display and navigation module display as operational coordinates. The range of operational coordinates for the lateral and longitudinal axes is between 0 and 255.
    - The multi-display also has operational coordinates that range from 0 to 255 for the lateral and longitudinal axes. The display and navigation module display displays the pointer according to the operational coordinates from the knob.
2. Remote Touch Switch Knob Feedback Force
  
  Fig 7: Identifying Touch Switch Knob Feedback Force
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. The remote touch has 2 built-in motors. These motors control both lateral and longitudinal axes and generate feedback force according to remote touch switch knob operation.
    HINT:
    - There are 3 types of feedback force image areas (Icons, Frames and Others) are provided on the multi-display screen. The feedback force changes depending on the area.
    - The display and navigation module display sends a feedback force request signal to the remote touch according to the pointer location displayed on the multi-display.
    - When the remote touch receives the feedback force request signal, the remote touch controls the motors and generates 3 types of feedback force according to the operation direction of the remote touch switch knob.
    - The strength of feedback force generated by the remote touch can be adjusted. Refer to the owner's service information for further information.
  2. Icon Area
    
    Fig 8: Identifying Switch Knob Operation Icon Area
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    HINT:
    - When the pointer comes close to an icon area, force will be provided to pull the pointer toward the center of the icon area.
    - Stronger force is provided while driving than while parked.
  3. Frame Area
    
    Fig 9: Identifying Switch Knob Operation Frame Area
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    HINT:
    
    Frame areas are provided for the edges of all display screens. When the pointer comes close to the edge of the screen, force will be provided to move the pointer away from the edge of the screen.
  4. Other Area
    
    Fig 10: Identifying Switch Knob Operation Other Area
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    HINT:
    - When the pointer is in an area other than one of those specified, resistance will be provided that is proportional to the remote touch switch knob operation speed.
    - Stronger resistance is provided on the map screen than on other screens.
DVD (DIGITAL VERSATILE DISC) PLAYER OUTLINE (for DVD Changer Models)
1. The DVD player can only play DVD videos, DVD audio and video CDs that have any of the following marks:
  
  Fig 11: Identifying Dvd (Digital Versatile Disc) Player Outline
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Precaution for use of discs
    NOTE:
    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.
2. Cleaning
  
  Fig 12: Cleaning Disc Surface With Soft Dry Cloth
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NOTE:
  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.
    NOTE:
    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.
"Bluetooth" OUTLINE
1. "Bluetooth" is a trademark owned by Bluetooth SIG. Inc.
2. "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.
3. 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.
    
    Fig 13: Identifying "Bluetooth" Built-In Radio Receiver Assembly
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.
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.

NOTE:
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.
VEHICLE CUSTOMIZATION OUTLINE
1. Customization of functions can be performed on the multi-display screen. Refer to the owner's service information for further information on customizable items for the navigation system.
  HINT:
  - Items available for customization via the navigation system can be performed by using the Techstream.
  - Some customize parameters displayed on the Techstream will be displayed on the "Vehicle Customization" screen for the navigation system. Users can customize these items.
COMMUNICATION SYSTEM
1. MOST Network Outline
  
  Fig 14: Identifying Navigation ECU (display And Navigation Module Display)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  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.
2. AVC-LAN Outline
  
  Fig 15: Identifying AVC-LAN Outline
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  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 Ω) 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.
DIAGNOSTIC FUNCTION OUTLINE
1. The navigation system has a diagnostic function (the result will be displayed on the master unit or the Techstream).

DIAGNOSIS DISPLAY DETAILED DESCRIPTION

HINT:

This Information 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.

Service Menu Screen
HINT:

Each item is grayed out or not displayed based on the device settings.

Fig 16: Identifying Service Menu Screen
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Failure Diagnosis Screen

HINT:

Each item is grayed out or not displayed based on the device settings.

Fig 17: Identifying Failure Diagnosis Screen

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

System Check Mode Screen

Fig 18: Identifying System Check Mode Screen

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*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.

Name	Component	Connection Method
EMV-M	Display and navigation module display	-
AUDIO	Radio receiver assembly	Communication line for MOST network
AMP	Stereo component amplifier assembly	Communication line for MOST network
R-TOUCH	Remote touch	Communication line for MOST network
DISP	Multi-display	Communication line for AVC-LAN
CAMERA-C	Parking assist ECU (w/ Wide view front monitor system)	Communication line for AVC-LAN
MOTOR-C	Display module board	Communication line for AVC-LAN
CLOCK	Integration control and panel assembly	Communication line for AVC-LAN
HUD	Meter mirror sub-assembly (w/ Headup display)	Communication line for AVC-LAN
USB-BOX	Multi-media interface ECU	Communication line for AVC-LAN

*3: Check Result

HINT:

Result codes for all devices are displayed.
When "MOST" is displayed for the result, press "MODE" on the steering pad switch assembly to display the "MOST Line Check" screen.

Changing to the "MOST Line Check" screen is possible only when "MOST" is displayed for the result.

Result	Meaning	Action
OK	The device does not respond with a DTC.	-
MOST	MOST communication error	Perform "MOST Line Check" to check the connection of each device on the MOST network.
EXCH	The device responds with a "replace"-type DTC.	Look up the DTC in "Unit Check Mode" and replace the device.
CHEK	The device responds with a "check"-type DTC.	Look up the DTC in "Unit Check Mode".
NCON	The device was previously present, but does not respond in diagnostic mode.	- Check power supply wire harness of the device. - Check the AVC-LAN or MOST network for the device.
NRES	The device responds in diagnostic mode, but gives no DTC information.	- Check power supply wire harness of the device. - Check the AVC-LAN or MOST network for the device.

*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.

Name	Component	Connection Method
MIC	Telephone microphone assembly	Vehicle wire harness
AUX	No. 1 stereo jack adapter assembly	Vehicle wire harness
DCM	DCM (Telematics transceiver) (w/ Manual (SOS) switch)	Communication line for USB

Unit Check Mode Screen

Fig 19: Identifying Unit Check Mode Screen

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

SCREEN DESCRIPTION

Display	Content
*1: Device name	Target device
*2: History DTC	Diagnostic memory results and stored DTCs are displayed.
*3: Present DTC	DTCs output in the service check are displayed.
*4: DTC	DTC (Diagnostic Trouble Code)
*5: Timestamp	The time and date of history DTCs are displayed. (The year is displayed in 2-digit format.)
*6: Diagnosis clear switch	Selecting this switch for 3 seconds clears the diagnostic memory data of the target device. (Both response to diagnostic system check result and the displayed data are cleared.)

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.

Fig 20: Identifying MOST Line Check Screen

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*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.

Name	Component
EMV-M	Display and navigation module display
AUDIO	Radio receiver assembly
AMP	Stereo component amplifier assembly
R-TOUCH	Remote touch

*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.

Result	Meaning
OK	There was a response for the connection check during the MOST line check.
NCON	There was no response for the connection check during the MOST line check.

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.

Function Check/Setting Screen

Fig 21: Identifying Function Check/Setting Screen

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

Each item is grayed out or not displayed based on the device settings.

Microphone & Voice Recognition Check Screen

Fig 22: Screen Display - Microphone & Voice Recognition Check

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

SCREEN DESCRIPTION

Display	Content
*1: Microphone input level meter	Monitors the microphone input level every 0.1 sec. and displays the results in 8 different levels.
*2: Recording switch	Starts recording.
*3: Stop switch	Stops recording and playing.
*4: Play switch	Plays the recorded voice.
*5: Recording indicator	Comes on while recording.

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.

GPS Information Screen

Fig 23: Identifying 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

Display	Content
T	The system is receiving a GPS signal, but is not using it for location.
P	The system is using the GPS signal for location.
-	The system cannot receive a GPS signal.

*3: Measurement information

SCREEN DESCRIPTION

Display	Content
2D	2-dimensional location method is being used.
3D	3-dimensional location method is being used.
NG	Location data cannot be used.
Error	Reception error has occurred.
-	Any other state

*4: Position information

SCREEN DESCRIPTION

Display	Content
Position	Latitude and longitude information on the current position is displayed.

*5: Date information

SCREEN DESCRIPTION

Display	Content
Data	The date/time information obtained from GPS signals is displayed in Greenwich Mean Time (GMT).

Vehicle Sensors Screen

Fig 24: Screen Display - Vehicle Sensors

VEHICLE SIGNAL

Display	Content
*1: SPD	SPD signal condition is displayed.

SENSOR SIGNAL

Display	Content
*2: Gyro sensor	Gyro sensor output condition is displayed.

HINT:

Signals are updated once per second only when vehicle sensor signals change.

Vehicle Signal Check Mode Screen

Fig 25: Screen Display - Vehicle Signal Check Mode

SCREEN DESCRIPTION

Display	Content
Battery	Battery voltage is displayed.
IG	Power switch ON/OFF state is displayed.
PKB	Parking brake ON/OFF state is displayed.
REV	Reverse signal ON/OFF state is displayed.
SPEED	Vehicle speed is displayed in km/h.
TAIL	TAIL signal (Light control switch) ON/OFF state is displayed.

HINT:

Only items sending vehicle signals will be displayed.
This screen is updated once per second when input signals to the vehicle are changed.