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)
| Operation | Description |
|---|---|
| Vehicle Position Calculation | The navigation ECU 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 navigation ECU processes the vehicle position data, vehicle driving track and map data from the internal memory. |
| Map Matching | The map data from the internal memory 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 the error caused by tire wear and slippage between the tires and road surface. Distance correction is performed to account for this. The navigation ECU automatically offsets the signal to make up for the difference between it and the distance data of the map. The offset is automatically updated. |
Tech Tips
The combination of autonomous and GPS navigation makes it possible to display the vehicle position even when the vehicle is in places where GPS signals cannot be received. 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 navigation ECU and the vehicle speed signal.
Gyro sensor
Used to calculate the direction by detecting angular velocity. It is located in the navigation ECU.
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.
| *1 | Current longitude/latitude/altitude is determined using the signal arrival time from four satellites. |
| 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 signal) and GPS navigation. This information is then compared with possible road shapes from the map data in the internal memory and the vehicle position is set onto the most appropriate road.
Touch switch
Touch switches are touch-sensitive (interactive) switches operated by touching the screen. When a switch is pressed, the outer film 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.
MP3/WMA/AAC OUTLINE
Playable MP3 file standards
| Compatible standard | MPEG1 LAYER3, MPEG2 LSF LAYER3 |
| Compatible sampling frequency |
|
| Compatible bit rate |
|
| Compatible channel mode | Stereo, joint stereo, dual channel, monaural |
Playable WMA file standards
| Compatible standard | WMA Ver. 7, 8, and 9 |
| Compatible sampling frequency | 32, 44.1, 48 (kHz) |
| Compatible bit rate (Only compatible with 2-channel playback) |
|
Playable AAC file standards
| Compatible standard | MPEG4/AAC-LC |
| Compatible sampling frequency | 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 (kHz) |
| Compatible bit rate |
|
ID3 tag, WMA tag and AAC tag
Additional text information called an ID3 tag can be input to MP3 files. Information such as song titles and artist names can be stored.
Tech Tips
This player is compatible with ID3 tags of ID3 Ver. 1.0 and 1.1, and ID3 Ver. 2.2 and 2.3. (Number of characters complies with ID3 Ver. 1.0 and 1.1.)
Additional text information called a WMA tag can be input to WMA files. Information such as song titles and artist names can be stored.
Additional text information called an AAC tag can be input to AAC files. Information such as song titles and artist names can be stored.
Usable media
USB devices can be used to play MP3/WMA/AAC files.
File names
Only files with an extension of ".mp3", ".wma" and ".m4a" can be recognized and played as MP3, WMA or AAC files.
Save MP3, WMA or AAC files with an extension of ".mp3", ".wma" or ".m4a".
Note
If non-MP3, non-WMA or non-AAC files are saved with an extension of ".mp3", ".wma" or ".m4a", those files may be wrongly recognized as MP3, WMA or AAC files and played. A loud noise may occur and damage to the speakers may result.
"Bluetooth" OUTLINE
| *1 | Radio and Display Receiver Assembly (Built-in "Bluetooth" Antenna) | *2 | Navigation ECU (Built-in "Bluetooth" Receiver) |
| *3 | Cellular Phone ("Bluetooth" Compatible Type) | *4 | Portable Audio Player ("Bluetooth" Compatible Type) |
| *a | Example | *b | Cellular Network |
| *c | "Bluetooth" Wireless Connection | - | - |
"Bluetooth" is a trademark owned by Bluetooth SIG, Inc.
"Bluetooth" is a wireless connection technology that uses the 2.4 GHz frequency band.
Tech Tips
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.
Hands-free function
The "Bluetooth" built-in navigation ECU and a "Bluetooth" compatible cellular phone* can be connected using a "Bluetooth" wireless connection. This enables the 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.
*: Some versions of "Bluetooth" compatible cellular phones may not function properly.
The hands-free function uses a "Bluetooth" wireless connection. A "Bluetooth" wireless connection can be affected by uncertain elements, such as vehicle location, time of day, etc. Therefore, problems related to establishing connection may be caused temporarily by "Bluetooth" connection conditions. It is necessary to check the frequency of occurrence, connection conditions using another cellular phone, etc. when performing diagnosis.
Compatible hands-free devices
| Required "Bluetooth" specifications | Ver. 2.0 + EDR or higher (Ver. 3.0 or higher recommended) |
| Compatible profiles |
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| Maximum number of hands-free devices that can be registered (including audio devices) | 4 |
*1: This profile is necessary when using the hands-free function.
*2: This profile is necessary when using the message function.
*3: This profile is necessary when using the connected services function (w/ Connected Services).
Note
As "Bluetooth" and "Wi-Fi" use the same frequency band, if the "Wi-Fi" setting of the vehicle or "Bluetooth" device is on, the "Bluetooth" hands-free function may not operate correctly.
Tech Tips
The amount of remaining battery charge displayed on the navigation ECU may be different from that of the "Bluetooth" device.
"Bluetooth" audio function
The "Bluetooth" built-in navigation ECU and a "Bluetooth" compatible portable audio player* can be connected using a "Bluetooth" wireless connection. This enables files stored in the portable audio player to be heard from the vehicle speakers. In addition, operations such as play/stop can be performed directly from the navigation ECU.
*: Some versions of "Bluetooth" compatible audio players may not be able to be connected via the "Bluetooth" function, or music may play, but functions available using the navigation ECU may be limited.
Compatible "Bluetooth" audio devices
| Required "Bluetooth" specifications | Ver. 2.0 + EDR or higher (Ver. 3.0 or higher recommended) |
| Compatible profiles |
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| Maximum number of audio devices that can be registered (including hands-free devices) | 4 |
Tech Tips
The amount of remaining battery charge displayed on the radio and display receiver assembly may be different from that of the "Bluetooth" device.
"Wi-Fi" OUTLINE (w/ "Wi-Fi" Function)
"Wi-Fi" is a worldwide wireless communication standard widely used as a short range communication tool.
"Wi-Fi" is a trademark owned by Wi-Fi Alliance, a non-profit industry association.
The radio and display receiver assembly uses the 2.4 GHz frequency band for "Wi-Fi" communication.
Tech Tips
The communication performance of "Wi-Fi" may vary depending on obstructions or radio wave conditions between communication devices, electromagnetic radiation, communication device sensitivity or antenna capacity.
MOBILE ASSISTANT
With a compatible Apple device connected via Bluetooth, this function allows the system to interface directly with "Siri" for voice recognition functions. The user operates the steering pad switch assembly to start the Mobile Assistant function and issues voice commands.
Tech Tips
"Siri" is a trademark of Apple Inc., registered in the U.S. and other countries.
RADIO DESCRIPTION
Radio frequency band
Radio broadcasts use the radio frequency bands shown in the table below.
Service area
| *a | FM (Stereo) |
| *b | FM (Monaural) |
| *c | AM |
The service areas of AM and FM broadcasts are vastly different. Sometimes an AM broadcast can be received very clearly but an FM stereo broadcast cannot. FM stereo has the smallest service area, and is prone to pick up static and other types of interference such as noise.
Radio reception problems
Tech Tips
In addition to static, other problems such as "phasing", "multipath" and "fade out" exist. These problems are not caused by electrical noise, but by the radio signal propagation method itself.
| *a | Phasing |
| *b | Ionosphere |
Phasing
AM broadcasts are susceptible to electrical interference and another kind of interference called phasing. Occurring only at night, phasing is the interference created when a vehicle receives 2 radio wave signals from the same transmitter. One signal is reflected off the ionosphere and the other signal is received directly from the transmitter.
| *a | Multipath |
Multipath
Multipath is a type of interference created when a vehicle receives 2 radio wave signals from the same transmitter. One signal is reflected off buildings or mountains and the other signal is received directly from the transmitter.
| *a | Fade Out |
Fade out
Fade out is caused by objects (buildings, mountains and other such large obstacles) that deflect away part of a signal, resulting in a weaker signal when the object is between the transmitter and vehicle. High frequency radio waves, such as FM broadcasts, are easily deflected by obstructions. Low frequency radio waves, such as AM broadcasts, are less likely to deflect.
Noise problem
Technicians must have a clear understanding about each customer's noise complaint. Use the following table to diagnose noise problems.
| Radio Frequency | Noise Occurrence Condition | Presumable Cause |
|---|---|---|
| AM | Noise occurs in a specific area | Foreign noise |
| Noise occurs when listening to an intermittent broadcast | An identical program transmitted from multiple towers can cause noise where the signals overlap | |
| Noise occurs only at night | Signal phasing | |
| FM | Noise occurs while driving in a specified area | Multipath resulting from a change in FM frequency |
"MirrorLink" FUNCTION OUTLINE (w/ "MirrorLink" Function)
"MirrorLink" is a function that enables the head unit to operate applications on a smartphone which meets Car Connectivity Consortium standards by connecting the smartphone to the head unit with a USB cable.
"MirrorLink" compatible smartphone manufacturers and applications are listed below.
| Manufacturer | Device | Application (available area / country) |
|---|---|---|
| Nokia |
|
Carmode (for Europe) |
| NokiaPhone (for Europe) | ||
| Nokia Drive (except Europe) | ||
| Nokia Music (except Europe) | ||
| Samsung | Galaxy S3 | DriveLink (for Europe, Southeast Asia) |
Tech Tips
Some applications require payment.
The names of applications are subject to change.
Some applications have a display restriction in consideration of safe driving.
The head unit does not support multi-touch. Use single touch when operating the touch panel.
DIGITAL AUDIO BROADCAST (DAB) FUNCTION OUTLINE (w/ DAB Function)
Digital Audio Broadcast (DAB) is the standard for digital radio. Compared to conventional FM/AM broadcasting, DAB enables higher sound quality radio broadcasting with lower noise when reception conditions change. DAB has an FM-Link function that automatically and temporarily changes to the simultaneously broadcasted FM station when the DAB broadcasting reception level falls.
VEHICLE CUSTOMIZATION OUTLINE
Customization of functions can also be customized on the radio and display receiver assembly screen. Refer to Owner's Manual for further information on customizable items for the navigation system.
Tech Tips
Items available for customization via the navigation system can also be customized by using the GTS.
Some customize parameters displayed on the GTS will be displayed on the "Vehicle Customization" screen for the navigation system. Users can customize these items.
RDS-TMC FUNCTION OUTLINE
This system has a function which allows the reception of traffic information from Radio Data System Traffic Message Channel (RDS-TMC) stations based on FM-multiple broadcasting.
It assists the driver to avoid areas with traffic congestion. It also helps to improve traffic flow and road safety. Traffic information can be viewed.
USB AUDIO SYSTEM FUNCTION OUTLINE
The No. 1 stereo jack adapter assembly is equipped with a USB terminal. Connecting a USB device or "iPod" to the No. 1 stereo jack adapter assembly allows music files to be played. Not only is it possible to play music from a USB device with audio functions, is also possible to play MP3 or WMA music files that are stored on a USB device. In addition, "iPod" control software is installed, allowing file selection from playlists and operation using shuffle mode.
Tech Tips
Operation through the controls of a USB device or "iPod" cannot be performed while it is connected.
USB audio system compatible devices
USB device
The following device formats can be used:
| Compatible USB device formats |
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MP3, WMA and AAC files written in any format other than those listed above may not play correctly, and their names and folder names may not be displayed correctly.
Items related to standards and limitations are as follows:
Maximum directory hierarchy: 8 levels
Maximum number of folders in device: 3000 (including the root folder)
Maximum number of files in device: 9999
Maximum number of files per folder: 255
"iPod"
"iPhone", "iPod", "iPod classic", "iPod nano" and "iPod touch" are trademarks of Apple Inc., registered in the U.S. and other countries.
The following "iPod", "iPod nano", "iPod classic", "iPod touch" and "iPhone" devices can be used with this system.
Made for:
"iPod touch" (5th generation)
"iPod touch" (4th generation)
"iPod touch" (3rd generation)
"iPod touch" (2nd generation)
"iPod touch" (1st generation)
"iPod classic"
"iPod with video"
"iPod nano" (7th generation)
"iPod nano" (6th generation)
"iPod nano" (5th generation)
"iPod nano" (4th generation)
"iPod nano" (3rd generation)
"iPod nano" (2nd generation)
"iPod nano" (1st generation)
"iPhone 5"
"iPhone 4S"
"iPhone 4"
"iPhone 3GS"
"iPhone 3G"
"iPhone"
Tech Tips
Depending on differences between models or software versions etc., some models might be incompatible with this system.
CONNECTED SERVICES OUTLINE (w/ Connected Services)
The following services are available by connecting the navigation system to Toyota's portal site via the internet using a cellular phone or "Wi-Fi" network.
Online search: New establishments, such as restaurants, bars, etc., that are not registered in the navigation system can be set as a destination.
Importing memory points: Establishments that were searched for using a personal computer can be set as a destination and can be registered as memory points.
Tech Tips
For known compatible phones, refer to http://www.my.toyota.eu.
It is necessary to agree to the terms of service for the search engine on http://www.my.toyota.eu. Failure to do so may cause problems such as not being able to select the search engine or the screen not transferring to the next screen when "Online search" is selected.
Connected services are available only on a radio and display receiver assembly that has had its identification code registered when the account was created.
Search results may not be displayed if the target establishment is not in the data supplied by the provider or in the map data of the navigation system.
As the information for a destination set using the connected services is supplied by the provider, the navigation system may guide to a location that deviates from the actual destination.
TRAFFIC INFORMATION FUNCTION OUTLINE (w/ Connected Services)
Traffic information and traffic prediction information can be viewed. There are 2 methods to receive the above information.
| Priority | Method | Information |
|---|---|---|
| 1st | Internet by using a cellular phone or "Wi-Fi" network |
|
| 2nd | FM | RDS-TMC (Traffic Data System-Traffic Message Channel) |
Tech Tips
When RDS-TMC information and TPEG information can be received, TPEG information will be given priority.
When the source for traffic information is switched between RDS-TMC information and TPEG information, traffic information displayed on the map may change.
Traffic information is displayed only on a map with a scale of 200 km (124 miles) or less.
The traffic information display range is 50 km (31 miles) from the current position and next destination for city roads, and 100 km (62 miles) from the current position for highways.
If there is traffic information only for traffic congestion, the route may not be changed depending on the distance of the congestion.
If there is no available avoidance route, the route may not be changed.
Depending on provided data, the "From" and "To" information of the traffic event information may not be displayed.
Provided data may differ from actual condition.
AUTOMATIC SOUND LEVELIZER (ASL) FUNCTION OUTLINE
The Automatic Sound Levelizer (ASL) function automatically adjusts the audio system volume level in order to compensate for increased vehicle noise (vehicle noise tends to increase as vehicle speed increases). The ASL adjusts the volume level based upon vehicle speed signals that it receives from the combination meter assembly.
DIAGNOSTIC FUNCTION OUTLINE
The navigation system has a diagnostic function (the result is indicated on the master unit).
COMMUNICATION SYSTEM
Local Bus Communication Outline
| *1 | Resistor 108 to 132 Ω |
| *2 | Radio and Display Receiver Assembly |
| *3 | Combination Meter Assembly |
| *4 | Local Bus Communication Line |
Components of the navigation system communicate with each other via the local bus.
The local bus uses a twisted pair of wires for its communication lines.
The master unit of the local bus is the radio and display receiver assembly.
Tech Tips
The radio and display receiver assembly has the resistance (108 to 132 Ω) necessary for communication.
The combination meter assembly has the resistance (108 to 132 Ω) necessary for communication.
If a short or open occurs in the local bus circuit, communication is interrupted and the system will not operate normally.
CAN Communication Outline
The navigation system uses CAN communication between the radio and display receiver assembly and ECUs.
LVDS Communication Outline
The navigation system uses LVDS communication between the radio and display receiver assembly and navigation ECU.
If a short or open circuit occurs in the LVDS communication line, communication is interrupted and the system will not operate normally.