NAVIGATION SYSTEM DTC CHECK / CLEAR


  1. CHECK DTC (CHECK USING GTS)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS 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 GTS)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Navigation System / Trouble Codes.

    5. Clear the DTCs.

  3. START DIAGNOSTIC MODE

    Tech Tips


    • 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. B001ZVKE01
        Text in Illustration
        *A for LHD
        *B for RHD
        *a "INFO" Switch
        *b "INFO" or "INFO APPS" Switch

        While pressing and holding the "INFO" or "INFO APPS" switch of the multi-media module receiver assembly, operate the light control switch: Off → Tail → Off → Tail → Off → Tail → Off.

      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 multi-display 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 multi-display assembly screen display off.

      3. Turn the multi-media module receiver assembly power supply off.

      4. B001ZBYE01
        Text in Illustration
        *a DOWN Switch
        *b UP Switch

        Press the "UP" switch 5 times, and then press the "DOWN" switch 5 times within 15 seconds.

      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. B001WCS

      The "Failure Diagnosis" screen will be displayed by pressing the "Failure Diagnosis" switch on the "Service Menu" screen.

  5. SYSTEM CHECK


    1. B001ZU6

      The "System Check Mode" screen will be displayed by selecting "System Check" on the "Failure Diagnosis" screen.

  6. CHECK DTC (CHECK USING SYSTEM CHECK MODE SCREEN)


    1. B001W5JE01

      System check mode screen description

      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 multi-display 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
      REAR Multi-display controller sub-assembly*1 Communication line for MOST network
      DISP Multi-display assembly Communication line for AVC-LAN
      CAMERA-C Parking assist ECU*2 Communication line for AVC-LAN

      • *1: w/ Rear Seat Entertainment System

      • *2: w/ Multi-terrain Monitor System

      *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
      SB-DISP/ RH* Multi-display controller sub-assembly Communication line for GVIF
      SB-DISP/ LH* Multi-display controller sub-assembly Communication line for GVIF
      HP-JACK-1* Headphone terminal RH Vehicle wire harness
      HP-JACK-2* Headphone terminal LH Vehicle wire harness

      • *: w/ Rear Seat Entertainment System

    2. B001WC8

      Unit check mode screen description

      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.)

      Tech Tips


      • This screen is updated once per second.

      • A maximum of 6 DTCs can be displayed for history and present DTCs.

    3. B001WXOE01

      MOST line check screen description

      Tech Tips


      • 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.

      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
      REAR* Multi-display controller sub-assembly

      • *: w/ Rear Seat Entertainment System

      *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.

      Tech Tips

      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. B001W17

      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.

        Tech Tips


        • 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 Click here.

        • 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) Click here.

        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 (w/ Navigation System)

        Click here

        Multi-terrain Monitor System*1

        Click here

        Rear Seat Entertainment System*2

        Click here


        • *1: w/ Multi-terrain Monitor System

        • *2: w/ Rear Seat Entertainment System

  7. DTC CLEAR/RECHECK (CLEAR USING SYSTEM CHECK MODE SCREEN)


    1. B001VN7

      Clear DTCs


      1. Select "Memory CLR" for 3 seconds.

      2. Confirm that the check results are cleared.

        Tech Tips


        • 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. B001YRN

      Recheck


      1. Press the "Recheck" switch.

      2. B001X4S

        Confirm that all diagnostic codes are "OK" when the check results are displayed. If a result other than "OK" is displayed, perform troubleshooting again.

        Tech Tips

        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.