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Section 475 (Rear View Monitor System - Diagnosis): Pre-Check

WARNING: This page is about a different car, the 2004 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
  1. DIAGNOSTIC START-UP/FINISH 

    HINT:

    • The illustrations may differ depending on the device settings (option, etc.). Therefore, some detailed areas may not be shown exactly same as on the actual vehicle.
    • After the ignition switch is turned on, check that the map is displayed before starting the diagnostic mode. Otherwise, some items cannot be checked.
    1. There are 2 methods to start diagnostic mode. start the mode by using one of them.
    2. Method 1
      1. Start the engine.
      2. While pressing and holding "INFO" switch, operate "TAIL" switch, OFF --> TAIL --> OFF --> TAIL --> OFF --> TAIL --> OFF.
      3. The diagnostic mode starts and "Service Check" screen will be displayed. Service inspection starts automatically and the result will be displayed.
      Fig 1: Pressing And Holding "INFO" Switch
      G03477124Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Method 2
      1. Start the engine.
      2. Switch to the "Display Check" screen.
      3. From the display adjustment screen, touch the corners of the screen in the following order: upper left --> lower left --> upper left --> lower left --> upper left --> lower left.
      4. The diagnostic mode starts and "Service Check" screen will be displayed. Service inspection starts automatically and the result will be displayed.
      Fig 2: Display Check" Screen
      G03477125Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Diagnosis MENU

      Pressing the menu switch on the service check screen, diagnostic window will be displayed.

    5. There are 2 methods to exit. Use one of them.
      1. Turn the ignition switch off.
      2. Press the "Display" switch for 3 seconds.
    Fig 3: Pressing Menu Switch On Service Checking Screen, Diagnostic Window
    G03477126Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. SERVICE CHECK MODE (DTC CHECK) 

    HINT:

    The illustrations may differ depending on the device settings (option, etc.). Therefore, some detailed areas, may not be shown exactly same as on the actual vehicle.

    1. Start the diagnostic mode.
    2. Read the service check result.

      If all devices report is "EXCH", "CHEK" or "Old" touch the display to check the contents on the "Unit Check Mode" screen and fill them on the customer problem analysis check sheet.

      HINT:

      • If all check result are "OK" go to communication DTC check (Go to step 3).
      • If a device name is not known, its physical address is displayed.
      Fig 4: Checking Contents On "Unit Check Mode" Screen
      G03477127Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      If "EXCH", "CHEK" and "Old" as well as "OK" exist, press the service switch to return to the "System Check Mode". Then, check the "Unit Check Mode" screen and fill them in on the customer problem analysis check sheet.

      Fig 5: Pressing Service Switch To Return To "System Check Mode
      G03477128Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Read the communication diagnostic check result.
      1. Return to the "System Check Mode", and press "LAN Mon" switch to enter the LAN monitor window.
        Fig 6: Pressing "LAN Mon" Switch To Enter LAN Monitor Window
        G03477129Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. If the result is "CHEK" or "Old" touch this display to check the contents on the "Unit Check Mode" screen and fill them in on the customer problem analysis check sheet.

    HINT:

    • If all check result are "No Err" the system judges that non DTC exists.
    • The sub-code (relevant device) will be indicated by its physical address.
    Fig 7: Checking Contents On "Unit Check Mode" Screen
    G03477130Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT:

    If other devices return "CHEK" press the "Service" switch to return to the "LAN Monitor" screen. Then, check the Individual communication diagnostic screen for the next device and fill out the result on the customer problem analysis check sheet.

    Fig 8: Pressing "Service" Switch To Return To "LAN Monitor" Screen
    G03477131Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. SERVICE CHECK MODE (DTC CLEAR/RECHECK) 

    HINT:

    The illustrations may differ from the actual vehicle depending on the device settings and options.

    1. Clear DTC
      1. Press "Memory CLR" switch for 3 seconds.
        Fig 9: Pressing "Memory CLR" Switch For 3 Seconds
        G03477132Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Check result is cleared.
    2. Recheck
      1. Press the "Recheck" switch.
        Fig 10: Pressing "Recheck" Switch
        G03477133Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Confirm that all diagnostic codes are "OK" when the check results are displayed.

        If a code other than "OK" is displayed, troubleshoot again.

        Fig 11: Display Diagnostic Codes "OK
        G03477134Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Press "LAN Mon" to switch to "LAN Monitor" mode.
        Fig 12: Pressing "LAN Mon" To Switch To "LAN Monitor" Mode
        G03477135Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Confirm that all diagnostic codes are "No Err".

      If a code other than "No Err" is displayed, troubleshoot again.

    Fig 13: Display Diagnostic Codes Are "No Err
    G03477136Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. FAIL-SAFE CHART 

    If the television camera ECU detects a malfunction, the fail-safe functions shown in the table below are activated.

    FAIL-SAFE CHART

    Malfunction parts Detecting condition Function "Manual Assist Mode" Function "Serial Parking Assist Mode"
    Television camera assy
    • Transmission of television camera malfunction signal
    Stop signal reception and displays a dark screen Stop signal reception and displays a dark screen
    Television camera ECU
    • Malfunction of television camera ECU unit
    Stops system operation Stops system operation