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DTC Check / Clear

  1. CHECK DTC (CHECK USING TECHSTREAM) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (READY).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Navigation System / Trouble Codes.
    5. Check for DTCs, and then write them down.
    6. Check the details of the DTC(s). Refer to DIAGNOSTIC TROUBLE CODE CHART .
  2. CLEAR DTC (CLEAR USING TECHSTREAM) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (READY).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Navigation System / Trouble Codes.
    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.
    • Start diagnostic mode 15 seconds after turning the power switch on (READY). Otherwise, some items cannot be checked.
    1. While pressing and holding the "CAR" switch, operate the light control switch: Off → Tail → Off → Tail → Off → Tail → Off.
    2. Diagnostic mode starts and the "Service Menu" screen will be displayed. Service inspection starts automatically and the result will be displayed.
  4. FAILURE DIAGNOSIS 
    1. The "Failure Diagnosis" screen will be displayed by pressing the "Failure Diagnosis" switch on the "Service Menu" screen.
      Fig 1: Screen Display - Failure Diagnosis
      GTY315580Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. SYSTEM CHECK 
    1. The "System Check Mode" screen will be displayed by pressing the "System Check" switch on the "Failure Diagnosis" screen.
      Fig 2: Screen Display - System Check Mode
      GTY340055Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. CHECK DTC (CHECK USING SYSTEM CHECK MODE SCREEN) 
    1. System check mode screen description
      Fig 3: Screen Display - System Check Mode Screen Description
      GTY342200Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      SCREEN DESCRIPTION

      Display Content
      *a: Device Name List No. 1
      • Device Name List No. 1 displays some of the devices that make up the audio and visual system.
      • The names of the components from Device Name List No. 1 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.
      • Press the "Memory CLR" switch for 3 seconds.
      *d: Recheck
      • A system check will be performed again after the memory is cleared.
      • The "Recheck" switch will dim during a system check.
      *e: Device Name List No. 2
      • Device Name List No. 2 displays some of the devices that make up the audio and visual system.
      • The names of the components from Device Name List No. 2 are shown in the following table.
      *A: DEVICE NAME LIST NO. 1 DESCRIPTION

      Name Component Connection Method
      DA Radio and display receiver assembly -
      *B: CHECK RESULT DESCRIPTION

      Result Meaning Action
      DETAIL The device responds with a DTC. Look up the DTC in "Unit Check Mode".
      *E: DEVICE NAME LIST NO. 2 DESCRIPTION

      Name Component Connection Method
      AUX No. 1 stereo jack adapter assembly Vehicle wire harness
    2. Unit check mode screen description
      Fig 4: Screen Display - Unit Check Mode
      GTY318841Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      SCREEN DESCRIPTION

      Display Content
      *a: Device name Target device
      *b: History DTC Diagnostic memory results and stored DTCs are displayed.
      *c: Current DTC DTCs output in the service check are displayed.
      *d: DTC DTC (Diagnostic Trouble Code)
      *e: Diagnosis clear switch Pushing this switch for 3 seconds clears the diagnostic memory data of the target device (Both response to 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.
    3. Read the system check result.
      Fig 5: Screen Display - Unit Check Mode
      GTY340057Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. If the check result is "DETAIL", touch 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", this means that no DTCs are present.
        • When proceeding to view the results of another device, press the "Back" switch to return to the "System Check Mode" screen. Repeat the step above to view the results of other devices.
      2. Check the details of the DTC(s). Refer to DIAGNOSTIC TROUBLE CODE CHART .
  7. DTC CLEAR/RECHECK (CLEAR USING SYSTEM CHECK MODE SCREEN) 
    1. Clear DTCs
      Fig 6: Screen Display - Memory CLR
      GTY340059Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Press the "Memory CLR" switch for 3 seconds.
      2. Confirm that the check results are cleared.

        HINT: 

        • To clear the DTCs for a specific device, clear the DTCs using the "Unit Check Mode" screen.
        • When clearing the DTCs using the "Unit Check Mode" screen, press the "Code CLR" switch for 3 seconds.
    2. Recheck
      Fig 7: Screen Display - Recheck
      GTY340058Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Press the "Recheck" switch.
      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 8: Screen Display - OK
        GTY340061Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT: 

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

  8. FINISH DIAGNOSTIC MODE 
    1. Turn the power switch off.
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