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Navigation System - Diagnostics: Pre-Check

  1. USER TROUBLES UNDER NORMAL CONDITION OF THE NAVIGATION SYSTEM 
    1. Voice guidance is not performed even though the system is in normal condition when:
      1. The destination is not set up.
      2. The vehicle is not driving on the set route. (The remaining distance is not displayed at the lower left of the map screen that tells the current position of the vehicle.)
    2. The vehicle icon turns around arbitrarily on the screen even when the system is in normal condition. If the ignition switch is turned to "ACC" or "ON" while the vehicle is turning around such as being on the turntable, the Navigation System memorizes the angle speed of that moment as the standard figure. To solve this problem, at the vehicle speed of 0 MPH (0 km/h), turn off the ignition switch and, then turn it to "ACC" or "ON" again, and see whether any trouble occurs again.
  2. INSPECTION OF THE LOCATION WITH TROUBLE OCCURRENCE 
    1. Examine whether the wrong display of the vehicle icon appears in a certain location or in several locations.
      NOTE:

      It is difficult to determine the accurate vehicle position when driving on a freeway, a looped road or a road which runs in parallel with another, and immediately after going out of the parking area. In such cases the vehicle icon can be displayed off the real position of the vehicle.

  3. DIAGNOSIS SYSTEM MODE 
    Fig 1: Entering Diagnosis System Mode
    G02915872Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Diagnosis Start-up
      NOTE:

      Before starting the Diagnosis System, make sure that the map appears on the screen after turning on the IG switch.

      If not, some items cannot be checked.

      1. Vehicle speed is 0 km/h (0 mph).
      2. Turn the ignition switch to ACC or ON.
      3. While pressing "TA" switch by turning the light control switch to OFF, TAIL, OFF, TAIL, OFF, TAIL and OFF the system is started up.
      Fig 2: Locating TA Switch
      G02915873Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      DISPLAY DESCRIPTION

      Display Description
      Service Check By performing system check and collecting data of diagnosis memory, this mode checks the current and past condition of each connection device.
      Display Check It display the Display Check on the screen.
      Navigation Check It display the Navigation Check on the screen.
      NOTE:
      • When Diagnosis System starts, Service Check screen is displayed and the service check begins.
      • Select Menu to display Diagnosis MENU.
    2. Finishing Diagnosis System Mode
      1. Turn the ignition switch from ACC to OFF to finish the mode.
        Fig 3: Diagnosis Menu Display Mode
        G02915874Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. SERVICE CHECK 
    Fig 4: Performing Service Check Mode
    G02915875Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. System Check Mode
      1. Start the Diagnosis System.
        DISPLAY ITEM FUNCTIONS

        Display Item Function
        Components Name/*1 (1) List of component names including optional components (15 components max.) are displayed. When the names are not identified, their physical addresses are displayed.
        Check Result/*2 (1) Check results are displayed.
        Memory CLR/*3 (1) Pressing this switch for 3 sec. deletes all the information about master component registration.
        Code CLR/*4 (1) Pressing this switch for 3 sec. deletes diagnosis memory of all the components. It deletes Service Check results and the screen displaying the check results.
        Recheck/*5 (1) Pressing this switch performs Service Check again.
        Menu/*6 (1) Pressing this switch activates the Diagnosis Menu screen.
        (1) For *1-*6, see Fig 5.
        Fig 5: System Check Menu Display Mode
        G02915876Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        NOTE:

        Service Check displays the check results based on the information obtained from each components response to "System Check Execution" and "Diagnosis Memory Request", and the information of "Current DTC Notification". (the Unit Check information that will be displayed on the next screens.)

      2. Read Check Result
        DEFINING CHECK RESULTS

        Check Result Meaning
        OK No DTC is identified.
        EXCH One or more DTC requesting for exchange are detected.
        Check One or more DTC requesting for check are detected.
        NCON No connection response to Diagnosis System start-up, whereas it has the connection response to LAN when the power switch is turned on. (when IG is turned to ACC).
        NRES No response to the information about the Diagnosis System, whereas it responds to the Diagnosis System start-up.
        NOTE:
        • After repair and check, press "Code CLR" for more than 3 sec. to delete diagnosis memory.
        • After deleting diagnosis memory, press "Recheck" and make sure "OK" is displayed on the screen.
        3. NOTE:
        • Detecting Unit DTC activates the Unit Check Mode on the screen.
        • In the Unit Check Mode, DTC which is identified as "Check" in the Service Check, is displayed as classified into Current DTC and Past DTC.
        Fig 6: Unit Check Display Mode
        G02915877Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. "EXCH", "Check" and "Old" can be used as switches to activate "Unit Check Mode" for detail information. Check troubled parts of the components in these modes by referring to the DTC code list.
        DISPLAYINGUNIT CHECK MODE RESULTS

        Display Item Description
        Components name/*1 (1) Names of components to be checked are displayed.
        Current/*2 Up to 6 DTC codes detected during the System Check are displayed.
        Memory/*3 DTC memories stored and current DTC Notification are displayed.
        Date/Time/*4 Date and time stamped at time of DTC occurrence are displayed in order of year-month-day-hour-minute-second. (If date and time data is invalid, it displays as a blank.)
        Code CLR/*5 Pressing this switch for 3 sec. deletes DTC memory of the selected diagnosis component.
        Service/*6 Pressing this returns to the Service Check Mode screen.
        (1) For *1-*6, see Fig 6.
  5. DISPLAY CHECK 
    Fig 7: Display Check Mode Procedure
    G02915878Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Display Check 
      DISPLAY CHECKS

      Display Contents
      Color Bar Check/*1 (1) Color display is checked.
      Remote Commander Check/*2 Operating condition of touch switch display is checked.
      Vehicle Signal Check/*3 Status of the vehicle signal which has been loaded into the display is checked.
      Menu/*4 Pressing this switch activates the Diagnosis Menu screen.
      (1) For *1-*4, see Fig 8.
      Fig 8: Identifying Display Check Mode Screen
      G02915879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      In Display Check, above checks can be performed.

    2. Color Bar Check Mode
      1. Start the Diagnosis System.
      2. Select "Menu".
      3. Select "Display Check".
      4. Select "Color Bar Check".
        5. NOTE:

        Select Black, Red, Green, Blue, White and Stripe to display selected colors and stripe on the entire screen.

      5. Make sure that each color name is corresponding to each color on the bar.
      6. Compare with the Color Bar Check in the Navigation Check and make sure that no difference is found.
        Fig 9: Identifying Color Bar Check Mode Screen
        G02915880Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remote Commander Check
      1. Start the Diagnosis system.
      2. Select "Menu".
      3. Select "Display Check".
      4. Select "Remote Commander Check".
      5. Press each switches and make sure that it corresponds to the display on the screen.
        Fig 10: Identifying Remote Commander Check Screen
        G02915881Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Vehicle Signal Check Mode
      1. Start the Diagnosis system.
      2. Select "Menu".
      3. Select "Display Check".
        4. NOTE:

        Vehicle signal data is updated every 1 second.

        Fig 11: Identifying Vehicle Signal Check Mode Screen
        G02915882Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Select "Vehicle Signal Check".
      5. Check the status of the vehicle signal (REV, SPEED, TAIL) loaded into the display.
  6. NAVIGATION CHECK 
    Fig 12: Navigation Check Mode Procedure
    G02915883Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Navigation Check 
      NAVIGATION DISPLAY DESCRIPTION

      Display Description
      GPS Information/*1 (1) Information related to GPS is displayed. (updated every 1 second.)
      Vehicle Sensors/*2 Vehicle signal information to be loaded in the "NAVI" is displayed. (updated every 1 second.)
      Color Bar Check/*3 Color display of the "NAVI" is checked. (Compare with the Color Bar Check results in the Display Check.)
      Parts Information/*4 Navigation program version and disc version are displayed.
      (1) For *1-*4, see Fig 13.
      Fig 13: Navigation Check Display Mode
      G02915884Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • In the Navigation Check, the checks mentioned above can be conducted.
      • The Navigation ECU operates each Navigation Check screen.
    2. GPS Information
      1. Start the Diagnosis system.
      2. Select "Menu".
      3. Select "Navigation Check".
      4. Select "GPS Information".
      5. Check the GPS-related information.
        DISPLAY DESCRIPTION

        Display Data Description
        Satellite Information/*1 (1) "Angle of elevation", "Azimuth", "Level of Signal" and "Status of Wave Reception" of the Satellite captured by the antenna are displayed. (for 8 satellites max.)
        Level of Signal/*2 As the level of signal is higher, the receiving sensitivity better.
        Position Data/*3 The latitude and longitude of the current position are displayed in degree, minute and second.
        Time Data/*4 Date and time data obtained from the GPS receiver is displayed.
        (1) For *1-*4, see Fig 14.

        Status of Wave Reception: /*5  , see Fig 14.

        WAVE RECEPTION DISPLAY CONDITIONS

        Display Conditions
        01H Complement no GPS
        02H Chasing GPS satellites
        04H Complement GPS but no using
        08H Using GPS
        Fig 14: Displaying GPS Information & Wave Reception Status
        G02915885Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Measurement Status: /*6  , see Fig 14.

        MEASUREMENT STATUS DISPLAY CONDITIONS

        Display Conditions
        2D Measurement on 2 dimensions
        3D Measurement on 3 dimensions
        NG GPS information cannot be used
        Error Reception error occurs
        Error Other than the above
    3. Vehicle Sensors
      1. Start the Diagnosis system.
      2. Select "Menu".
      3. Select "Navigation Check".
      4. Select "Vehicle sensors".
        Fig 15: Displaying Vehicle Sensors Conditions
        G02915886Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. Check the vehicle signals (REV, SPD) and the output signal of the gyro sensor introduced into the navigation system.
        ITEMS DISPLAY METHOD

        Items Display Method
        REV signal status Displayed as ON/OFF.
        SPD signal status Cumulative value of input pulse count and vehicle speed [km/h] [mph] are displayed. [Cumulative value of input pulse count is set to 0 when this screen is displayed. When vehicle starts to drive, it is counted and displayed continually.]
        Output signal of the gyro sensor Voltage [V] and relative azimuthal angle [degree] are displayed. [Position of vehicle when this screen is displayed is set to 0 degree in azimuth. Based on this, relative azimuthal angle is measured and displayed continually.]
    4. Navigation Color Bar Check
      1. Start the Diagnosis system.
      2. Select "Menu".
      3. Select "Navigation Check".
      4. Select "Color Bar Check".
        Fig 16: Displaying Navigation Color Bar Check
        G02915887Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. Make sure that the set color matches the display color.
      6. Compare with the Color Bar Check in the Display Check and make sure that no difference is found.
    5. Parts Information
      1. Start the Diagnosis system.
      2. Select "Menu".
      3. Select "Navigation Check".
      4. Select "Parts Information".
        Fig 17: Displaying Navigation System Parts Information
        G02915888Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. Check the program and disc version.
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