DTC Check / Clear

START DIAGNOSTIC MODE
HINT:
- The illustrations may differ depending on the device settings (options, etc.). Therefore, some detailed areas may not be exactly the same as on the actual vehicle.
- After the power switch is turned ON (ACC), 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 hybrid system.
  2. While pressing and holding the "INFO" switch, operate the light control switch OFF → TAIL → OFF → TAIL → OFF → TAIL → OFF.
  3. The diagnostic mode starts and the "Service Check" screen will be displayed. The service inspection starts automatically and the result will be displayed.
    
    Fig 1: Pressing And Holding INFO Switch
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Method 2
  1. Start the hybrid system.
  2. Press the "Display" switch.
  3. On 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 the "Service Check" screen will be displayed. The service inspection starts automatically and the result will be displayed.
    
    Fig 2: Identifying Display Screen
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Diagnosis MENU
  Press the menu switch on the service check screen. The diagnostic window will be displayed.
FINISH DIAGNOSTIC MODE
1. Use one of the following 2 methods to finish the diagnostic mode.
  1. Turn the power switch OFF.
  2. Press the "Display" switch for 3 seconds.
SYSTEM CHECK MODE (DTC CHECK)
HINT:

The illustrations may differ depending on the device settings (options, etc.). Therefore, some detailed areas may not be exactly the same as on the actual vehicle.
1. Start the diagnostic mode.
  
  Fig 3: Identifying System Check Mode Display
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Read the service check result.
  If all the devices report as "EXCH", "CHEK" or "Old", touch the display to check the contents in the "Unit Check Mode" screen and write them into the customer problem analysis check sheet.
  
  Fig 4: Service Check Result - Unit Check Mode
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  - If all the check results are "OK", go to the DTC CHECK / CLEAR .
  - If a device name is not known, its physical address is displayed.
  - If "EXCH", "CHEK" and "Old" as well as "OK" are shown, 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: Service Check Result - System Check Mode Screen
    Courtesy 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: Reading Communication Diagnostic Check Result
    Courtesy 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 write them into the customer problem analysis check sheet.
    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.
    - If a check result is "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 7: Pressing Service Switch To Return LAN Monitor Screen
      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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 the "Code CLR" switch for 3 seconds.
    
    Fig 8: Pressing "Code CLR" Switch For 3 Seconds
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Check result is cleared.
2. Recheck
  1. Press the "Recheck" switch.
    
    Fig 9: Pressing "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: Inspecting Diagnostic Codes Are "OK"
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. Press "LAN Mon" to switch to "LAN Monitor" mode.
    
    Fig 11: Pressing "LAN Mon" To Switch To "LAN Monitor" Mode
    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.