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Section 344 (Navigation System - Diagnostics): Pre-Check

WARNING: This page is about a different car, the 2003 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
  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.)
      3. Guidance in Other Modes is not set up. (In this case no voice guidance is given except on the map screen.)
    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.
    CAUTION: 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 a 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: Navigation System Diagnosis Flow Chart
    G02822198Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Start-up And Finishing Of The Diagnosis
      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.
    2. Diagnosis Start-up by light control switch.
      1. Vehicle speed should be 0 km/h (0 mph).
        Fig 2: Locating INFO Switch On Multi Display Screen
        G02822199Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Apply the parking brake.
      3. Turn the ignition switch to ACC or ON.
      4. While pressing the INFO switches on the Multi Display, turn the Light Control switch from OFF --> TAIL --> OFF --> TAIL --> OFF --> TAIL --> OFF.
      SCREEN MULTI 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 displays the Display Check on the screen.
      Navigation Check It displays the Navigation ECU Check on the screen.
      NOTE:
      • When Diagnosis System starts, Service Check screen is displayed and the service check begins.
      • Select MENU to display Diagnosis Check Menu.
    3. Diagnosis Start-Up by touch switch.
      1. Vehicle speed should be 0 km/h (0 mph).
        Fig 3: Locating Touch Switch Displayed On Multi Display Screen
        G02822200Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Apply the parking brake.
      3. Turn the ignition switch to ACC or ON.
      4. Activate the screen adjustment screen.
      5. Alternately touch the upper and lower bottom parts of the left end of the screen 3 times.
    4. Finishing the Diagnosis System Turn the ignition switch off to finish the mode.
  4. System Check Mode 
    Fig 4: Navigation System Check Mode Flow
    G02822201Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. SYSTEM CHECK MODE
    2. System Check
      1. Start the Diagnosis System.
        SYSTEM CHECK MODE DISPLAY ITEM FUNCTION REFERENCE

        Display Item Function
        Components Name/*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/*2 Check results are displayed.
        Memory CLR/*3 Pressing this switch for 3 sec. deletes all the information about master component registration.
        Code CLR/*4 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 Pressing this switch performs Service Check again.
        Menu/*6 Pressing this switch activates the Diagnosis Menu screen.
        LAN Mon/*7 Pressing this switch activates the LAN monitor screen.
        Fig 5: Identifying System Check Mode Menu Displayed
        G02822202Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        NOTE: System Check displays the check results based on the information obtained from each component's response to System Check Execution and Diagnosis Memory Request, and the information of Current DTC Notification will be displayed on the next screens.).
      2. Read Check Result
        SYSTEM MODE CHECK RESULT DESCRIPTION

        Check Result Meaning
        OK No DTC is identified.
        EXCH One or more DTC requesting for exchange are detected.
        CHEK 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 the AVC LAN system when the power switch is turned on (when IG is turned to ACC).
        Old One or more DTC are detected because of old version.
        NRES No response to the information about the Diagnosis System, whereas it responds to the Diagnosis System start-up.
        No Err No DTC is identified.
        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. EXCH, CHEK 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.
        Fig 6: Identifying Navigation System Unit Check Mode Menu Displayed
        G02822203Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      UNIT CHECK MODE DISPLAY ITEM DESCRIPTION

      Display Item Description
      Components name/*1 Names of components to be checked are displayed.
      Code CLR/*2 Pressing this switch for 3 sec. deletes DTC memory of the selected diagnosis component.
      Service/*3 Pressing this returns to the Service Check Mode screen.
      Date/Time/*4 The date and time stamped at the time of DTC occurrence are displayed in the order of year-month-day-hour-minute-second. (If the date and time data is invalid, it is displayed as a blank.)
      Current/*5 Up to 6 DTC codes detected during the System Check are displayed.
      Memory/*6 DTC memories stored and current DTC Notification are displayed.
      NOTE:
      • Detecting Unit DTC activates the Unit Check Mode on the screen.
      • In the Unit Check Mode, DTC which is identified as "EXCH" in the Service Check, is displayed as classified into Current DTC and Past DTC.
    3. LAN Monitor
      1. Start the Diagnosis System.
        Fig 7: Identifying LAN Monitor Menu Displayed
        G02822204Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        LAN MONITOR MENU DISPLAY ITEM DESCRIPTION

        Display Item Function
        Components Name/*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/*2 Check is displayed.
        Menu/*3 Pressing this switch activates the Diagnosis Menu screen.
        BACK/*4 Pressing this switch activates the System Check Mode screen.
        NOTE: System Check displays the check results based on the information obtained from each component's response to "System Check Execution" and "Diagnosis Memory Request", and the information of "Current DTC Notification" (the LAN Monitor that will be displayed on the next screens.).
      2. Read Check Result
        LAN MONITOR CHECK RESULT DESCRIPTION

        Check Result Meaning
        OK No DTC is identified.
        EXCH One or more DTC requesting for exchange are detected.
        CHEK 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 the AVC LAN system when the power switch is turned on (when IG is turned to ACC).
        Old One or more DTC are detected because of old version.
        NRES No response to the information about the Diagnosis System, whereas it responds to the Diagnosis System start-up.
        No Err No DTC is identified.
        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. CHEK can be used as switches to activate LAN Monitor for detail information. Check troubled parts of the components in these modes by referring to the DTC code list.
        Fig 8: Identifying LAN Monitor AVX Service Display
        G02822205Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      LAN MONITOR AVX SERVICE DISPLAY ITEM DESCRIPTION

      Display Item Description
      Components name/*1 Names of components to be checked are displayed.
      Segment/*2 Logical address codes corresponding to DTC are displayed.
      DTC/*3 DTC is displayed.
      Sub-Code (address numbers of related components)/*4 Physical address codes memorized together with DTC are displayed.
      Sub-code (Connection confirmation number) /*5 Connection confirmation numbers memorized together with DTC are displayed.
      Sub-code (Number of occurrence) /*6 The number of occurrence of the same DTC is displayed.
      Service check mode screen switch/*7 Pressing this returns to the System Check Mode screen.
      NOTE: Detecting no LAN DTC activates the LAN Check Mode on the screen.
  5. Display Check Mode 
    Fig 9: Navigation System Display Check Mode Flow Chart
    G02822206Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. DISPLAY CHECK MODE
      Fig 10: Identifying Navigation System Display Check Menu Display
      G02822207Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      DISPLAY CHECK MODE CONTENTS REFERENCE

      Display Contents
      Color Bar Check/*1 Color display is checked.
      Touch Switch Check/*2 Operating condition of touch switch display is checked.
      Panel Switch Check/*3 Operating condition of switches on both sides of the display is checked.
      Vehicle Signal Check/*4 Status of the vehicle signal which has been loaded into the display is checked.
      NOTE: In Display Check Mode, above checks can be performed.
      DISPLAY CHECK MODE ITEM DESCRIPTION

      Display Item Meaning
      MENU Pressing this switch activates the "Diagnosis MENU".
    2. Display Color Bar Check
      Fig 11: Identifying Navigation System Color-Bar Check Mode Menu Display
      G02822208Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Start the Diagnosis System.
      2. Select MENU.
      3. Select Display Check.
      4. Select Color Bar Check.
      5. Make sure that each color name is corresponding to each color on the bar.
        NOTE: Select Black, Red, Green, Blue, White and Stripe to display selected colors and stripe on the entire screen.
      6. Compare with the Color Bar Check in the Navigation Check and make sure that no difference is found.
      DISPLAY COLOR BAR CHECK MODE ITEM DESCRIPTION

      Display Item Meaning
      Disp MENU Pressing this switch activates the Display Check.
    3. Display Touch Switch Check
      Fig 12: Identifying Touch Switch Check Mode
      G02822209Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Start the Diagnosis system.
      2. Select MENU.
      3. Select Display Check.
      4. Select Touch Switch Check.
      5. Touch the screen and make sure that every line reacts to the touch.
      NOTE: After the Touch Switch Check for vertical lines, press Next to check horizontal lines.
      TOUCH SWITCH CHECK MODE DISPLAY ITEM DESCRIPTION

      Display Item Meaning
      Disp MENU Pressing this switch activates the Display Check.
    4. Display Panel Switch Check
      Fig 13: Identifying Panel Switch Check Mode Menu Display
      G02822210Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Start the Diagnosis system.
      2. Select MENU.
      3. Select Display Check.
      4. Select Panel Switch Check.
      5. Press each switch and make sure that it corresponds to the display on the screen.
      DISPLAY PANEL SWITCH DATA DESCRIPTION

      Display Data Description
      Names of push-button switches/*1 Names of push-button switches pressed are displayed. Pressing 2 or more push-button switches is displayed as "MULTIPLE". After that if the number of push-button switches being pressed becomes 1, the name of the push-button switch being pressed is displayed.
      Disp MENU/*2 Pressing this switch activates Display Check Menu.
    5. Display Vehicle Signal Check
      Fig 14: Identifying Display Vehicle Signal Check On Menu Display
      G02822211Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Start the Diagnosis system.
      2. Select "MENU".
      3. Select "Display Check".
      4. Select "Vehicle Signal Check".
      5. Check the status of the vehicle signal (PKB, SPEED, TAIL, REV) loaded into the display.
      NOTE: Vehicle signal data is updated every 1 second.
      VEHICLE SIGNAL DATA DESCRIPTION

      Display Item Meaning
      PKB IG (Signal State) is displayed by ON/OFF. (IG switch ON)
      SPEED SPD is displayed by calculatingthe vehicle speed from the pulse signal.
      REV REV (Signal State) is displayed by ON/OFF. (IG switch ON)
      TAIL TAIL (Signal State) is displayed by ON/OFF.
      Disp MENU/*2 Pressing this switch activates Display Check Menu.
  6. Navigation Check Mode 
    Fig 15: Navigation System Check Mode Flow Chart
    G02822212Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NAVIGATION CHECK MODE
      NAVIGATION CHECK MODE ITEM DESCRIPTION

      Display Description
      GPS Information/*1 Information related to GPS is displayed (updated every 1 second.).
      Vehicle Sensors/*2 Vehicle signal information to be loaded in the Navigation ECU is displayed (updated every 1 second.).
      Color Bar Check/*3 Color display of the Navigation ECU is checked. (Compare with the Color Bar Check results in the Display Check.)
      Memory Copy / Paste/*4 Using hand-held tester, read and write user data such as a placement of shop, restaurant etc. stored in memory.
      Parts Information/*5 Navigation program version and disc version are displayed.
      Fig 16: Identifying Navigation Check Menu Display
      G02822213Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • In the Navigation Check mode, the checks mentioned above can be conducted.
      • The Navigation ECU operates each Navigation Check screen.
      NAVIGATION CHECK MODE ITEM MEANING REFERENCE

      Display Item Meaning
      Menu Pressing this switch activates the "Diagnosis MENU".
    2. GPS Information
      Fig 17: Identifying GPS Information Menu Display
      G02822214Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Start the Diagnosis system.
      2. Select "MENU".
      3. Select "Navigation Check".
      4. Select "GPS Information".
      5. Check the GPS-related information.
      GPS INFORMATION DISPLAY DATA DESCRIPTION

      Display Data Description
      Satellite Information/*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.)
      Position Data/*2 The latitude and longitude of the current position are displayed in degree, minute and second.
      Time Data/*3 Date and time data obtained from the GPS receiver is displayed.
      Navi Menu Pressing this switch activates the Navigation Check.

      Measurement Status: /*4 

      GPS INFORMATION MEASUREMENT STATUS

      Display Conditions
      2D Measurement on 2 dimensions
      3D Measurement on 3 dimensions
      NG GPS information cannot be used.
      Error Reception error occurs.
      - Other than the above
    3. Vehicle Sensors
      Fig 18: Identifying Navigation System Vehicle Sensors Menu Display
      G02822215Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Start the Diagnosis system.
      2. Select MENU.
      3. Select Navigation Check.
      4. Select Vehicle sensors.
      5. Check the vehicle signals (ACC, REV, SPD) and the output signal of the gyro sensor introduced into the navigation ECU.
      VEHICLE SENSORS DISPLAY METHOD

      Items Display Method
      ACC signal status Displayed as ON/OFF.
      REV signal status Displayed as ON/OFF.
      SPD signal status The cumulative value of input pulse count and the vehicle speed [km/h] [mph] are displayed. [The cumulative value of input pulse count is set to be 0 when this screen is displayed. When the 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. [The position of the vehicle when this screen is displayed is set to be 0 degree in azimuth. Based on this, relative azimuthal angle is measured and displayed continually.]
      Navi Menu Pressing this switch activates the "Navigation Check".
    4. Navigation Color Bar Check
      Fig 19: Identifying Navigation Color Bar Check Menu Display
      G02822216Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Start the Diagnosis system.
      2. Select MENU.
      3. Select Navigation Check.
      4. Select Color Bar Check.
      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.
      NAVIGATION COLOR BAR DISPLAY ITEM MEANING

      Display Item Meaning
      Navi Menu Pressing this switch activates the Navigation Check.
    5. Parts Information
      Fig 20: Identifying Parts Information Menu Display
      G02822217Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Start the Diagnosis system.
      2. Select MENU.
      3. Select Navigation Check.
      4. Select Parts Information.
      5. Check the program and disc version.
      NAVIGATION SYSTEM PARTS INFORMATION MEANING

      Display Item Meaning
      Navi Menu Pressing this switch activates the Navigation Check.
    6. Memory Copy/ Paste
      Fig 21: Identifying Memory Copy/Paste Menu Display
      G02822218Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: This function is not available.
      NAVIGATION SYSTEM MEMORY COPY/PASTE MEANING

      Display Item Meaning
      Navi Menu Pressing this switch activates the "Navigation Check".
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