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DTC Check / Clear [09/2014 - 10/2015]

  1. CHECK DTC (CHECK USING TECHSTREAM) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    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).
  2. CLEAR DTC (CLEAR USING TECHSTREAM) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    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.
    • After the engine switch is turned on (IG), check that the map is displayed before starting diagnostic mode. Otherwise, some items cannot be checked.
    • Start diagnostic mode using either of the 2 methods below.
    1. Method 1
      1. Start the engine.
      2. While pressing and holding the "MENU" switch of the remote touch, operate the light control switch: Off → Tail → Off → Tail → Off → Tail → Off.
        GTY529349Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a MENU
      3. Diagnostic mode starts and the "Service Menu" screen will be displayed. Service inspection starts automatically and the result will be displayed.
    2. Method 2
      NOTE:

      If the operation fails and diagnostic mode cannot be entered, turn the accessory meter assembly screen display on and off once, and then perform the procedures listed below from the first step again. (Only turning the multi-media module receiver assembly power supply on and off will not work.)

      1. Start the engine.
      2. Turn the accessory meter assembly screen display off.
      3. Turn the multi-media module receiver assembly power supply off.
      4. Press the ">" switch 5 times, and then press the "<" switch 5 times within 15 seconds.
        GTY522654Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. 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.
      GTY435240Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. SYSTEM CHECK 
    1. The "System Check Mode" screen will be displayed by selecting "System Check" on the "Failure Diagnosis" screen.
      GTY522650Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. CHECK DTC (CHECK USING SYSTEM CHECK MODE SCREEN) 
    1. System check mode screen description
      GTY677862Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      SCREEN DESCRIPTION

      Display Content
      *a: Node position number for devices connected to the MOST network. MOST network node position numbers are provided for devices connected to the MOST network.
      *b: Device Name List No. 1
      • Device Name List No. 1 displays some of the devices that make up the navigation system.
      • The names of the components from Device Name List No. 1 are shown in the following table.
      *c: Check Result
      • Result codes for all devices are displayed.
      • When "MOST" is displayed for the result, select "MOST" on the accessory meter assembly to display the "MOST Line Check" screen.
      *d: Memory Clear
      • Present and history DTCs and registered connected device names are cleared.
      • Select "Memory CLR" for 3 seconds.
      *e: Recheck
      • A system check will be performed again after the memory is cleared.
      • "Recheck" will dim during a system check.
      *f: Device Name List No. 2
      • Device Name List No. 2 displays some of the devices that make up the navigation system.
      • The names of the components from Device Name List No. 2 are shown in the following table.
      *B: DEVICE NAME LIST NO. 1 DESCRIPTION

      Name Component Connection Method
      EMV-M Multi-media module receiver assembly -
      AMP Stereo component amplifier assembly Communication line for MOST network
      DISP Accessory meter assembly Communication line for AVC-LAN
      Rr-CONT Rear control switch*1 Communication line for AVC-LAN
      HUD Combination meter mirror ECU*2 Communication line for AVC-LAN
      R-TOUCH Remote touch Local bus communication line
      • *1: w/ Rear Control Switch
      • *2: w/ Headup Display
      *C: CHECK RESULT DESCRIPTION

      Result Meaning Action
      OK The device does not respond with a DTC. -
      MOST MOST communication error Perform "MOST Line Check" to check the connection of each device on the MOST network.
      DETAIL The device responds with a DTC. Look up the DTC in "Unit Check Mode".
      NCON The device was previously present, but does not respond in diagnostic mode. - Check power supply wire harness of the device.
      - Check the AVC-LAN or MOST network of the device.
      NRES The device responds in diagnostic mode, but gives no DTC information. - Check power supply wire harness of the device.
      - Check the AVC-LAN or MOST network of the device.
      *F: DEVICE NAME LIST NO. 2 DESCRIPTION

      Name Component Connection Method
      AUX/VTR No. 1 stereo jack adapter assembly Vehicle wire harness
      IFBOX_ USB No. 1 stereo jack adapter assembly Communication line for USB
      CAA Rear television camera assembly Vehicle wire harness
      DCM DCM (Telematics Transceiver)* Communication line for USB
      • *: w/ Manual (SOS) Switch
    2. Unit check mode screen description
      GTY618089Courtesy 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: Timestamp The time and date of history DTCs are displayed. (The year is displayed in 2-digit format.)
      *f: Diagnosis clear switch 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.
    3. MOST line check screen description

      HINT: 

      • The inspection will be performed at the time the screen changes from "System Check Mode" to "MOST Line Check".
      • The master unit checks the connection of each device on the MOST network.
      GTY628329Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      SCREEN DESCRIPTION

      Display Content
      *a: Node position number for devices connected to the MOST network. MOST node position numbers are provided for devices connected to the MOST network.
      *b: Device Name List
      • Device Name List displays some of the devices that make up the navigation system.
      • The names of the components from Device Name List are shown in the following table.
      *c: Check Result The master unit displays the check result on the screen based on the response information from each slave unit.
      *B: DEVICE NAME LIST

      Name Component
      EMV-M Multi-media module receiver assembly
      AMP Stereo component amplifier assembly
      *C: CHECK RESULT

      Name Component
      OK There was a response for the connection check during the MOST line check.
      NCON There was no response for the connection check during the MOST line check.

      HINT: 

      The device name and result will not be displayed if there is no system registration record and no response for the connection check during the MOST line check even if the device is connected to the MOST network.

    4. Read the system check result.
      GTY522651Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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 stored.
        • When "MOST" is displayed for the result, select "MOST" to display the "MOST Line Check" screen and check the MOST network.
        • Changing to the "MOST Line Check" screen is possible only when the MOST network is malfunctioning and "MOST" is displayed for the result.
        • If the MOST network had a malfunction in the past, DTCs will be displayed in the Memory column.
        • When "NCON" is displayed for all devices connected via the AVC-LAN, or when all device names are not displayed, check if there is a short circuit in the AVC-LAN or devices connected to the AVC-LAN. Repair or replace parts as necessary (Refer to AVC-LAN Circuit [09/2014 - 10/2015] ).
        • When proceeding to view the results of another device, select the "Back" switch 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 [09/2014 - 10/2015] ).
        NOTE:

        The navigation system outputs DTCs for the following system. When DTCs other than those in Diagnostic Trouble Code Chart for the navigation system are output, refer to Diagnostic Trouble Code Chart for the relevant system.

        System Proceed to
        Audio and Visual System Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2014 - 10/2015]
        Parking Assist Monitor System Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2014 - ]
        Safety Connect System* Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2014 - 09/2017]
        Lexus Enform System* Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2014 - ]
        • *: w/ Manual (SOS) Switch
  7. DTC CLEAR/RECHECK (CLEAR USING SYSTEM CHECK MODE SCREEN) 
    1. Clear DTCs
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      1. Select "Memory CLR" 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 DTCs using the "Unit Check Mode" screen, select "Code CLR" for 3 seconds.
    2. Recheck
      GTY535617Courtesy 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 result other than "OK" is displayed, perform troubleshooting again.
        GTY522656Courtesy 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.

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