DTC Check / Clear

HINT:

• Illustrations may differ from the actual vehicle depending on the device settings and options. Therefore, some detailed areas may not be exactly the same as the actual vehicle.
• If the system cannot enter the diagnostic mode, inspect all AVC-LAN communication components and repair or replace problem parts (See AVC-LAN CIRCUIT ).
• After turning the engine switch on (IG) and before entering diagnostic mode, check that the air conditioning can be operated on the display screen. Otherwise, some items cannot be checked.

1. START DIAGNOSTIC MODE 
   1. Start the engine.
   2. Switch to the "Display Check" screen.
   3. From the display quality 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 the "Diagnosis Inspection" screen will be displayed. Service inspection starts automatically and the result will be displayed.
2. FINISH DIAGNOSTIC MODE 
   1. Turn the engine switch off.
      Fig 1: Screen Display - Start Diagnostic Mode

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. DIAGNOSIS MENU 
   1. Press the "Menu" button on the "System Check Mode" screen.
      Fig 2: Screen Display - Press Menu Button

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. The "Diagnosis MENU" screen will be displayed.
      Fig 3: Screen Display - Diagnostic Menu

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. CHECK DTC 
   1. Read the system check result.
      1. If the check result is "EXCH", "CHEK" or "Old", touch the displayed check result.
         Fig 4: Screen Display - System Check Mode

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. View the results on the "Unit Check Mode" screen and record them.

         HINT:

         • If all check results are "OK", go to the communication DTC check.
         • If a device name is not known, its logical address is displayed.
           Fig 5: Screen Display - Trouble Code System Check Mode

           Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. When proceeding to view the results of another device, press the "Service" button.
         Fig 6: Screen Display - Unit Check Mode

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Return to the "System Check Mode" screen. Repeat the steps above to read the other results of the system check.
         Fig 7: Screen Display - System Check Mode (1 Of 5)

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. DTC CLEAR / RECHECK 
   1. Clear DTCs
      1. Press the "Code CLR" switch for 3 seconds.
      2. The check results are cleared.
         Fig 8: Screen Display - System Check Mode (2 Of 5)

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Recheck
      1. Press the "Recheck" button.
         Fig 9: Screen Display - System Check Mode (3 Of 5)

         Courtesy 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 10: Screen Display - System Check Mode (4 Of 5)

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Press the "LAN Mon" button to change to the "LAN Monitor" screen.
         Fig 11: Screen Display - System Check Mode (5 Of 5)

         Courtesy 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.