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Section 329 (LEXUS Navigation System - Diagnosis): Pre-Check

WARNING: This page is about a different car, the 2003 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
  1. DIAGNOSIS SYSTEM MODE 

    HINT:

    Diagnosis System Mode is operated as follows.

    Fig 1: Diagnosis System Mode Display
    G03375245Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. DIAGNOSIS START-UP

      HINT:

      • 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.

      • To start the diagnosis menu, there are 2 ways: using a light control switch and using a touch switch.
    2. Diagnosis Start-up by light control switch.
      1. Vehicle speed should be 0 km/h (0 mph).
      2. Turn the ignition switch to ACC or ON.
      3. While pressing the "INFO" switches on the Multi Display, turn the Light Control switch from OFF --> TAIL --> OFF --> TAIL --> OFF --> TAIL --> OFF.
      DESCRIPTION CHART

      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.

      HINT:

      • When Diagnosis System starts, Service Check screen is displayed and the service check begins.
      • Select MENU to display Diagnosis Check Menu.
      Fig 2: Identifying "INFO" Switches
      G03375246Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Diagnosis Start-Up by touch switch.
      1. Vehicle speed should be 0 km/h (0 mph).
      2. Turn the ignition switch to ACC or ON.
      3. Activate the screen adjustment screen.
      4. 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.

      Fig 3: Identifying Touch Switch
      G03375247Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. SERVICE CHECK MODE 

    HINT:

    Service Check Mode is operated as follows.

    Fig 4: Service Check Mode Display
    G03375248Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. SERVICE CHECK SCREEN
    2. Service Check
      1. Start the Diagnosis System.
        FUNCTION CHART

        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: Service Check Screen Display (1 Of 4)
        G03375249Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        Service 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 Unit Check and the LAN Check information that will be displayed on the next screens.).

      2. Read Check Result
        CHECK RESULT CHART

        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.

        HINT:

        • 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.
      DESCRIPTION CHART

      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 System Check Mode screen.
      Date/Time/*4 The date and time stamped at the time of DTC occurrence are displayed in the order of month-day-year-hour-minute-second. (If the date and time data is invalid, blank is displayed.)
      Current/*5 Up to 6 DTC codes are detected while the System Check are displayed.
      Memory/*6 DTC memories are stored and current DTC notification are displayed.
      Fig 6: Service Check Screen Display (2 Of 4)
      G03375250Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      • Detecting Unit DTC activates the Unit Check Mode on the screen.
      • In the Unit Check Mode, DTC 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.
        FUNCTION CHART

        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.
        CHEK/*2 Check results are displayed.
        MENU/*3 Pressing this switch activates the Diagnosis Menu screen.
        BACK/*4 Pressing this switch activates the System Check Mode screen.

        HINT:

        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).

        Fig 7: Service Check Screen Display (3 Of 4)
        G03375251Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Read Check Result
        CHECK RESULT CHART

        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.

        HINT:

        • 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 that "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.
      DESCRIPTION CHART

      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/*7 Pressing this returns to the System Check Mode screen.

    HINT:

    Detecting no LAN DTC activates the LAN Check Mode on the screen.

    Fig 8: Service Check Screen Display (4 Of 4)
    G03375252Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. NAVIGATION CHECK MODE 

    HINT:

    Navigation Check Mode is operated as follows.

    Fig 9: Navigation Check Mode Display
    G03375253Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NAVIGATION CHECK MODE SCREEN
      DESCRIPTION CHART

      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 This function is not available.
      Parts Information/*5 Navigation program version and disc version are displayed.
      Fig 10: Navigation Check Mode Screen Display
      G03375254Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      • In the Navigation Check mode, the checks mentioned above can be conducted.
      • The Navigation ECU operates each Navigation Check screen.
      DISPLAY ITEM CHART

      Display Item Meaning
      Menu Pressing this switch activates the "Diagnosis MENU".
    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.
      DESCRIPTION CHART

      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 are displayed.
      Navi Menu Pressing this switch activates the "Navigation Check".

      Measurement Status: /*4 

      DISPLAY CHART

      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.
      Fig 11: GPS Information Display
      G03375255Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Status of Wave Reception:/*5 

      CONDITIONS CHART

      Display Conditions
      P Using GPS.
      - Complement no GPS.
      T Complement GPS but no using.
    3. Vehicle Signal Check
      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.
      DISPLAY METHOD CHART

      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".
      Fig 12: Vehicle Signal Check Display
      G03375256Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Navigation Color Bar Check
      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.
      DISPLAY ITEM CHART

      Display Item Meaning
      Navi Menu Pressing this switch activates the "Navigation Check".
      Fig 13: Navigation Color Bar Check Display
      G03375257Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Parts Information
      1. Start the Diagnosis system.
      2. Select "MENU".
      3. Select "Navigation Check".
      4. Select "Parts Information".
      5. Check the program and disc version.
      DISPLAY ITEM CHART

      Display Item Meaning
      Navi Menu Pressing this switch activates the "Navigation Check".
      Fig 14: Parts Information Display
      G03375258Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Memory Copy/Paste

      HINT:

      This function is not available.

      DISPLAY ITEM CHART

      Display Item Meaning
      Navi Menu Pressing this switch activates the "Navigation Check".
      Fig 15: Memory Copy/Paste Display
      G03375259Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. DISPLAY CHECK MODE 
    Fig 16: Display Check Mode
    G03375260Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. DISPLAY CHECK MODE
      DISPLAY CHECK MODE CHART

      Display Contents
      Color Bar Check/*1 Color display is checked.
      Touch Switch Check/*2 Operating condition of touch switch display is checked.
      Touch Point Check/*3 Operating condition of touch point display is checked.
      Panel Switch Check/*4 Operating condition of switches on both sides of the display is checked.
      Vehicle Signal Check/*5 Status of the vehicle signal which has been loaded into the display is checked.

      HINT:

      In Display Check Mode, above checks can be performed.

      DISPLAY ITEM CHART

      Display Item Meaning
      MENU Pressing this switch activates the "Diagnosis MENU".
      Fig 17: Display Check Mode
      G03375261Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Display Color Bar Check
      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.
        Fig 18: Display Color Bar Check
        G03375262Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        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 ITEM CHART

      Display Item Meaning
      Disp MENU Pressing this switch activates the "Display Check".
    3. Display Touch Switch Check
      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.

      HINT:

      After the Touch Switch Check for vertical lines, press "Next" to check horizontal lines.

      DISPLAY ITEM CHART

      Display Item Meaning
      Disp MENU Pressing this switch activates the "Display Check".
      Fig 19: Display Touch Switch Check
      G03375263Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Display Touch Point Check
      1. Start the Diagnosis system.
      2. Select "MENU".
      3. Select "Display Check".
      4. Select "Touch Point Check".
      5. The position detected by the pressure sensing touch switch is checked.
      DISPLAY ITEM CHART

      Display Item Meaning
      Press point/*1 The detected point is indicated by a cross-hair cursor.
      Disp MENU/*2 Pressing this switch activates Display Check Menu.
      Fig 20: Display Touch Point Check
      G03375264Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Display Panel Switch Check
      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 they correspond to the display on the screen.
      DESCRIPTION CHART

      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.
      Fig 21: Display Panel Switch Check
      G03375265Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Display Vehicle Signal Check
      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 (Battery, PKB, SPEED, TAIL, ADIM/TCAN) loaded into the display.

      HINT:

      Vehicle signal data is updated every 1 second.

      DISPLAY ITEM CHART

      Display Item Meaning
      Battery Battery voltage is displayed by V.
      IG IG (Signal State) is displayed by ON/OFF.
      PKB Parking Brake Switch (Signal State) is displayed by ON/OFF. (IG switch ON)
      SPEED SPD is displayed by calculating the vehicle speed from the pulse signal.
      TAIL TAIL (Signal State) is displayed by ON/OFF.
      ADIM/TCAN ADIM/TCAN signal indicates "DIM" when the light is reduced and "BRIGHT" when the light is not reduced.
      Disp MENU/*1 Pressing this switch activates Display Check Menu.
      Fig 22: Display Vehicle Signal Check
      G03375266Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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