DTC Check / Clear

Fig 1: Waveform Graph

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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 on 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 the ignition switch is turned ON, check that the map is displayed before starting the diagnostic mode. Otherwise, some items cannot be checked.

START DIAGNOSTIC MODE
1. Turn the ignition switch ACC.
2. Press the "DISPLAY" switch.
  
  Fig 2: Diagnostic Tool Display - DISPLAY Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. From the display quality adjustment screen, touch the comers 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.
FINISH DIAGNOSTIC MODE
1. Turn the ignition switch OFF.
Fig 3: Diagnostic Tool Display - Display Screen
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DIAGNOSIS MENU
1. The "Diagnosis MENU" screen will be displayed by pressing the menu switch on the "System Check Mode" screen.
Fig 4: Diagnostic Tool Display - System Check Mode Screen
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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 the .
    - 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 5: Diagnostic Tool Display - System Check Mode And 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 6: Diagnostic Tool Display - System Check Mode And LAN Monitor 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 7: Diagnostic Tool 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 8: Diagnostic Tool Display - Code CLR Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Recheck
  1. Press the "Recheck" switch.
    
    Fig 9: Diagnostic Tool Display - 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 10: Diagnostic Tool Display - OK
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. Press the "LAN Mon" switch to change to the "LAN Monitor" screen.
    
    Fig 11: Diagnostic Tool Display - 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.