DTC Check / Clear

HINT

Illustrations may differ from the actual vehicle screen depending on the device settings and options Therefore, some detailed areas may not be shown exactly the same as on the actual vehicle screen
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 the engine switch is turned on (IG), check that the map is displayed before starting the diagnostic mode Otherwise, some items cannot be checked

START DIAGNOSTIC MODE
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 the "INFO" switch, operate the light control switch OFF → Turn ON → Turn OFF → Turn ON → Turn OFF → Turn ON → Turn OFF
  3. The diagnostic mode starts and the "System Check Mode" screen will be displayed Service inspection starts automatically and the result will be displayed
    
    Fig 1: Identifying "INFO" Switch
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Method 2
  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 "System Check Mode" screen will be displayed. Service inspection starts automatically and the result will be displayed.
  Fig 2: Display Check Screen
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
FINISH DIAGNOSTIC MODE
1. There are 2 methods to end diagnostic mode Use one of them
  1. Turn the engine switch off
  2. Press and hold the "DISP" switch for 3 seconds
DIAGNOSIS MENU
1. The "Diagnosis MENU" screen will be displayed by pressing the menu switch on the "System Check Mode" screen
  
  Fig 3: Diagnosis Display - System Check Mode Screen
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CHECK DTC
1. Read the system check result.
  1. If the check result is "EXCH", "CHEK" or "Old", touch the displayed check result to view the results on the "Unit Check Mode" screen and record them
    HINT.
    - If all check results are "OK", go to communication DTC check.
    - If a device name is not known, its physical address is displayed
    HINT.
    
    When proceeding to view the results of another device, press the service switch to return to the "System Check Mode" screen Repeat this step.
    
    Fig 4: Diagnosis Display - Unit Check Mode Screen
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Read the communication diagnostic check result.
  1. Return to the "System Check Mode" screen, and press the "LAN Mon" switch to enter the "LAN Monitor" screen.
    
    Fig 5: Diagnosis Display - System Check Mode Screen
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. If the check result is "CHEK" or "Old", touch the displayed check result to view the results on the individual communication diagnostic screen and record them.
    HINT.
    - If all check results are "No Err", the system judges that no DTC exists.
    - The sub-code (relevant device) will be indicated by its physical address.
    - When proceeding to view the results of another device, press the "Service" switch to return to the original "LAN Monitor" screen. Repeat this step.
      
      Fig 6: Diagnosis Display - Lan Monitor Screen
      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DTC CLEAR/RECHECK
1. Clear DTC
  1. Press the "Code CLR" switch for 3 seconds
  2. The check results are cleared
    
    Fig 7: Identifying Code CLR Switch
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Recheck
  1. Press the "Recheck" switch
    
    Fig 8: Identifying Recheck Switch
    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 9: Display - Diagnostic Codes
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. Press the "LAN Mon" switch to change to the "LAN Monitor" screen
    
    Fig 10: Identifying LAN Mon Switch
    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
    
    Fig 11: Display - Diagnostic Codes
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002