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DTC Check / Clear [12/2019 - 10/2022]

  1. CHECK DTC (CHECK USING GTS) 
    1. Connect the GTS to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the GTS on.
    4. Enter the following menus: Body Electrical / D-SEAT SW / Trouble Codes.

      Body Electrical > D-SEAT SW > Trouble Codes 

    5. Check for DTCs, and then write them down.
    6. Check the details of the DTC(s).

      Refer to DTC CHECK / CLEAR [12/2019 - 10/2022] 

  2. CLEAR DTC (CLEAR USING GTS) 
    1. Connect the GTS to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the GTS on.
    4. Enter the following menus: Body Electrical / D-SEAT SW / Trouble Codes.

      Body Electrical > D-SEAT SW > Clear DTCs 

    5. Clear the DTCs.
  3. START DIAGNOSTIC MODE 

    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.

    1. Turn the ignition switch to ON.
    2. Display the audio screen.
    3. Touch the audio screen 5 times in the upper right corner, then 5 times in the upper left corner.
      GTY915376Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Multi-display Assembly
      *a Upper Right Corner
      *b Upper Right Corner
      *c Audio screen
  4. CHECK MODE SCREEN 
    1. Select "Failure Diagnosis" from the "Service Menu" screen.
      GTY863064Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Select "System Check" from the "Failure Diagnosis" screen.
      GTY863051Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. CHECK DTC (CHECK USING SYSTEM CHECK MODE SCREEN) 
    1. System check mode screen description
      GTY842629Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      SCREEN DESCRIPTION

      Display Content
      *a: Device name list
      • Device Name List displays some of the devices that make up the Toyota multi operation touch system.
      • The names of the components from Device Name List are shown in the following table.
      *b: Check result Result codes for all devices are displayed.
      *c: Memory clear
      • Present and history DTCs and registered connected device names are cleared.
      • Select "Memory CLR" for 3 seconds.
      *d: Recheck
      • A system check will be performed again after the memory is cleared.
      • "Recheck" will dim during a system check.
      *A: DEVICE NAME LIST NO. 1 DESCRIPTION

      Name Component Connection Method
      TMOT Integration control sub-assembly -
      DCU Radio receiver assembly AVC-LAN communication line
      DISP Multi-display assembly AVC-LAN communication line
      RSE Television display assembly AVC-LAN communication line
      *B: CHECK RESULT DESCRIPTION

      Result Meaning Action
      OK The device does not respond with a DTC. -
      DETAIL The device responds with a DTC. Read the DTCs on the "Unit Check Mode" screen.
      NCON The device was previously present, but did not respond in diagnostic mode.
      • Check the power supply circuit of the device.
      • Check the AVC-LAN communication line of the device.
      NRES The device responded in diagnostic mode, but gives no DTC information.
      • Check the power supply circuit of the device.
      • Check the AVC-LAN communication line of the device.
    2. Unit check mode screen description
      SCREEN DESCRIPTION

      Display Content
      *a: History DTC Diagnostic memory results and stored DTCs are displayed.
      *b: Present DTC DTCs output in the service check are displayed.
      *c: DTC DTC (Diagnostic Trouble Code)
      *d: Timestamp The time and date of history DTCs are displayed. (The year is displayed in 2-digit format.)
      *e: Diagnosis clear Selecting "Code CLR" for 3 seconds clears the diagnostic memory data of the target device (both diagnostic system check result and the displayed data are cleared).

      HINT: 

      • This screen is updated once per second.
      • A maximum of 6 DTCs can be displayed for history and present DTCs.
      GTY858383Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Read the system check result.
      1. If the check result is "DETAIL", select the displayed check result to view the results on the "Unit Check Mode" screen and record them.
        NOTE:

        A maximum of 6 DTCs can be displayed for history and present DTCs on the "Unit Check Mode" screen. Therefore, when 6 DTCs are displayed, troubleshoot those DTCs first and then check the "Unit Check Mode" screen again to see if any other DTCs are displayed.

        HINT: 

        • When all results are "OK", no DTCs are present.
        • When "NCON" is displayed for all devices connected via AVC-LAN communication, or when all device names are not displayed, check if there is a short in an AVC-LAN line or device connected to the AVC-LAN. Repair or replace parts as necessary.

          Refer to AVC-LAN Circuit [12/2019 - 10/2022]

        • When proceeding to view the results of another device, select "Back" to return to the "System Check Mode" screen. Repeat the above step to view the results of other devices.
      2. Check the details of the DTC(s).

        Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 10/2022] 

  6. DTC CLEAR/RECHECK (CLEAR USING SYSTEM CHECK MODE SCREEN) 
    1. Clear the DTCs
      GTY863059Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Select "Memory CLR" for 3 seconds.
      2. Check that the check results are cleared.

        HINT: 

        • To clear the DTCs for a specific device, use the "Unit Check Mode" screen.
        • When clearing the DTCs using the "Unit Check Mode" screen, select "Code CLR" for 3 seconds.
    2. Recheck
      GTY931643Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Select "Recheck".
      2. Check that all diagnostic codes are "OK" when the check results are displayed. If a result other than "OK" is displayed, perform troubleshooting again.
        GTY862993Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT: 

        When the DTCs are cleared using the "Unit Check Mode" screen, select "Back" to return to the "System Check Mode" screen and perform this operation.

  7. FINISH DIAGNOSTIC MODE 
    1. Turn the ignition switch off.
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