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System Description

WARNING: This page is about a different variant/trim than selected.
  1. NAVIGATION SYSTEM OUTLINE 
    1. 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 GPS Navigation System Outline
      GTY319991Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Operation Description
      Vehicle Position Calculation The navigation receiver assembly 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 receiver assembly processes the vehicle position data, vehicle driving track and map data from the hard disc.
      Map Matching The map data from the hard disc 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 receiver assembly automatically offsets the signal to make up for the difference between it and the distance data of the map. The offset is automatically updated.
      Fig 2: View Of Autonomous And GPS Navigation
      GTY316618Courtesy 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 GPS signals cannot be received. When only autonomous navigation is used, however, the mapping accuracy may slightly decrease.

    2. Autonomous navigation

      This method determines the relative vehicle position based on the driving track determined by the gyro located in the navigation receiver assembly and the vehicle speed signal.

      1. Gyro sensor

        Used to calculate the direction by detecting angular velocity. It is located in the navigation receiver assembly.

      2. Vehicle speed signal

        Used to calculate the vehicle driving distance.

    3. 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: Identifying GPS Satellite Navigation
      GTY319708Courtesy 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.
    4. 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 hard disc and the vehicle position is set onto the most appropriate road.

      Fig 4: Identifying Map Matching
      GTY327418Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. TOUCH SWITCH 
    1. Display is capacitive touch screen panel.
  3. MP3/WMA OUTLINE 
    1. Playable MP3 file standards
      Compatible standard MP3 (MPEG1 LAYER3, MPEG2 LSF LAYER3)
      Compatible sampling frequency
      • MPEG1 LAYER3: 32, 44.1, 48 (kHz)
      • MPEG2 LSF LAYER3: 16, 22.05, 24 (kHz)
      Compatible bit rate
      • MPEG1 LAYER3: 32, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 (kbps)
      • MPEG2 LSF LAYER3: 8, 16, 24, 32, 64, 80, 96, 112, 128, 144, 160 (kbps)
      • Compatible with VBR
      Compatible channel mode Stereo, joint stereo, dual channel, monaural
    2. 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)
      • Ver. 7, 8: CBR48, 64, 80, 96, 128, 160, 192 (kbps)
      • Ver. 9: CBR48, 64, 80, 96, 128, 160, 192, 256, 320 (kbps)
    3. ID3 tag and WMA tag
      1. Additional text information called an ID3 tag can be input to MP3 files. Information such as song titles and artist names can be stored.

        HINT: 

        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.)

      2. Additional text information called a WMA tag can be input to WMA files. Information such as song titles and artist names can be stored.
    4. File names
      1. Only files with an extension of ".mp3" or ".wma" can be recognized and played as MP3 or WMA files.
      2. Save MP3 or WMA files with an extension of ".mp3" or ".wma".
        NOTE:

        If non-MP3 or non-WMA files are saved with an extension of ".mp3" or ".wma", those files may be wrongly recognized as MP3 or WMA files and played. A loud noise may occur and damage to the speakers may result.

  4. "Bluetooth" OUTLINE 
    Fig 5: Bluetooth System Diagram
    GTY377258Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TEXT IN ILLUSTRATION

    *a Example *b Cellular Network
    *c Cellular Phone
    ("Bluetooth" compatible type)    		 *d Navigation Receiver Assembly
    (Built-in "Bluetooth" receiver antenna)
    *e Portable Audio Player
    ("Bluetooth" compatible type)    		 *f "Bluetooth" Wireless Connection
    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 navigation receiver assembly 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.

      2. Compatible hands-free devices
        Required "Bluetooth" specifications Ver. 1.1 or higher (Ver. 2.1+EDR or higher recommended)
        Compatible profiles
        • HFP (Hands-Free Profile) Ver. 1.0 or higher (Ver. 1.5 or higher recommended)*1
        • OPP (Object Push Profile) Ver. 1.1 or higher*1
        • PBAP (Phone Book Access Profile) Ver. 1.0 or higher*1
        • MAP (Message Access Profile) Ver. 1.0 or higher*2
        • SPP (Serial Port Profile) Ver. 1.1 or higher*3
        Maximum number of hands-free devices that can be registered (including audio devices) 5
        • *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 Entune function.

        HINT: 

        The amount of remaining battery charge displayed on the navigation receiver assembly may be different from that of the "Bluetooth" device.

    4. "Bluetooth" audio function
      1. The "Bluetooth" built-in navigation receiver assembly 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 receiver assembly.

        *: Some versions of "Bluetooth" compatible audio players may not be able to operate the "Bluetooth" function, or music may play, but functions available using the navigation receiver assembly may be limited.

      2. Compatible "Bluetooth" audio devices
        Required "Bluetooth" specifications Ver. 1.1 or higher (Ver. 2.1+EDR or higher recommended)
        Compatible profiles
        • A2DP (Advanced Audio Distribution Profile) Ver. 1.0 or higher (Ver. 1.2 or higher recommended)
        • AVRCP (Audio/Video Remote Control Profile) Ver. 1.0 or higher (Ver. 1.4 or higher recommended)
        Maximum number of audio devices that can be registered (including hands-free devices) 5

        HINT: 

        The amount of remaining battery charge displayed on the navigation receiver assembly may be different from that of the "Bluetooth" device.

  5. ENTUNE FUNCTION OUTLINE 
    1. Entune is a service that enables Entune applications to be displayed on and operated from the navigation receiver assembly screen. As "Bluetooth" communication is used for the communication between a cellular phone and the navigation receiver assembly, before using the Entune service on the navigation system, the cellular phone needs to be registered with the navigation system as a "Bluetooth" device. For details regarding Entune operations, each of the applications and compatible phones, refer to http://www.toyota.com/entune/.
    2. EV Applications is a service for EV vehicles. This service is added to the Safety Connect and Entune products. This service provides charge support, comfort support and drive support via the vehicle navigation system and a smartphone.

      HINT: 

      The following accounts are required for the service. 

      • Active Safety Connect account
      • Active Toyota Entune account
    3. The EV remote applications uses the DCM (telematics transceiver) for communication between the vehicle and the center.
  6. RADIO DESCRIPTION 
    1. Radio frequency band
      1. Radio broadcasts use the radio frequency bands shown in the table below.
        Fig 6: Identifying Radio Frequency Band Description Chart
        GTY269211Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Service area
      1. 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.
        Fig 7: Identifying Radio System Service Area
        GTY263088Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a FM (Stereo)
        *b FM (Monaural)
        *c AM
    3. Radio reception problems

      HINT: 

      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.

      1. 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.

        Fig 8: AM Broadcasts Are Susceptible To Electrical Interference
        GTY265264Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a Phasing
        *b Ionosphere
      2. 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.

        Fig 9: 2 Radio Wave Signals From The Same Transmitter
        GTY257719Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a Multipath
      3. 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.

        Fig 10: Buildings, Mountains, And Other Such Large Obstacles That Deflect Away Part Of A Signal
        GTY281241Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a Fade Out
    4. 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
  7. "HD Radio" FUNCTION OUTLINE 
    1. "HD Radio" system is a radio system that broadcasts in the IBOC (In-Band On-Channel) form that the iBiquity Co. has developed. By expanding the bandwidth per channel of conventional FM/AM bands, digital audio and data signals are additionally transmitted.

      "HD Radio" Technology manufactured under license from iBiquity Digital Corporation. U.S. and Foreign Patents. "HD Radio" and the HD and HD Radio logos are proprietary trademarks of iBiquity Digital Corporation.

      The information for the music currently being listened to is stored in the system and transmitted to the "iPod" connected to the system. The information transferred to the "iPod" can be used for purchasing the music through "iTunes" music store.

  8. SDARS SYSTEM FUNCTION OUTLINE (BROADCAST IN NORTH AMERICA ONLY) 
    1. 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, traffic information can be received and displayed on the navigation screen.
      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 necessary. Also, if parts are replaced, the XM Radio ID must be re-registered.

  9. XM DATA BROADCAST SERVICE OUTLINE 
    1. Description
      1. XM data broadcast service is a service*1 that allows the vehicle to receive information from the XM radio satellite and links the information to the navigation system. XM data broadcast service permits the driver to use the received information, such as weather information, sports news, fuel price information and stock information on the navigation system multi-display. The equipment for receiving this service is installed as standard.*2

        XM data broadcast service provides the following services: XM NavTraffic, XM NavWeather, XM Stocks and XM Sports.

        HINT: 

        • *1: XM data broadcast service is a service available in the continental U.S., excluding Alaska and Hawaii. In addition, Canada, Mexico and unincorporated territories of the U.S. such as Puerto Rico are not included in the service area.
        • *2: The XM NavTraffic and XM NavWeather require separate subscriptions to receive their services. XM Stocks and XM Sports are included with the XM Radio subscription.
    2. System function
      1. Component Outline
        Navigation receiver assembly Receives the XM satellite radio information signals from the XM tuner built into the navigation receiver assembly (distributed from the broadcast such as content information, stock price information, sports related news and weather information).
        SDARS (Satellite Radio Antenna) Receives XM satellite radio signal.
    3. Service function
      1. Service Function
        XM NavTraffic Displays traffic congestion information using icons, arrows and indicators on the navigation map according to the traffic information received via XM satellite radio.
        XM NavWeather
        • Displays weather information received via XM satellite radio.
        • A warning message is displayed on the screen once every 2 hours. The warning indicator displayed on the screen is updated every 15 minutes.
        • Displays weather forecasts for 3 days when a city icon on the map is pressed or when the city name is selected from the list on the screen.
        XM Stocks
        • Displays stock price information received via XM satellite radio.
        • Displays up to 10 user registered stock symbols and their price information.
        XM Sports
        • Displays sports related news received via XM satellite radio.
        • Allows the user to register up to 5 teams.
  10. RBDS FUNCTION OUTLINE 
    1. 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.
  11. USB AUDIO SYSTEM FUNCTION OUTLINE 
    1. 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.

      HINT: 

      Operation through the controls of a USB device or "iPod" cannot be performed while it is connected.

    2. USB audio system compatible model
      1. USB device

        The following device formats can be used:

        Compatible USB device formats
        • USB communication format: USB 2.0 HS (480Mbps) and FS (12Mbps)
        • File format: FAT16/32 (Windows)
        • Class: Mass storage class

        MP3 and WMA 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
      2. "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" (4th generation)
        • "iPod touch" (3rd generation)
        • "iPod touch" (2nd generation)
        • "iPod touch" (1st generation)
        • "iPod classic"
        • "iPod with video"
        • "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 4"
        • "iPhone 3GS"
        • "iPhone 3G"
        • "iPhone"

        HINT: 

        Depending on differences between models or software versions etc., some models might be incompatible with this system.

  12. AUTOMATIC SOUND LEVELIZER (ASL) FUNCTION OUTLINE 
    1. 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.
  13. DIAGNOSTIC FUNCTION OUTLINE 
    1. The navigation system has a diagnostic function (the result is indicated on the master unit).
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