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 write them down.

    6. Check the details of the DTC(s).

      Click here

      Note

      The navigation system outputs DTCs for the following systems. 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 systems.

      System Proceed to
      Parking Assist Monitor System (w/o Parallel Parking Assist Function)

      Click here

  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.

    • If the system cannot enter diagnostic mode, inspect all AVC-LAN communication components and repair or replace the malfunctioning parts.

      Click here

    • After the engine switch is turned on (IG), check that the map is displayed before starting diagnostic mode. Otherwise, some items cannot be checked.


    1. There are 2 methods to start diagnostic mode. Start diagnostic mode by using either of them.

    2. Method 1


      1. Turn the engine switch on (IG).

      2. A01W5QCC02
        *a MENU

        While pressing and holding the "MENU" switch, operate the light control switch: Off → Tail → Off → Tail → Off → Tail → Off.

    3. Method 2


      1. Turn the engine switch on (IG).

      2. Press the seek/track up panel switch 5 times and then press the seek/track down panel switch 5 times with the screen and audio turned off.

        Tech Tips


        • Diagnostic mode can only be started if the above operation is completed within 15 seconds of the first press of the seek/track up panel switch.

        • If the operation is not completed within 15 seconds of the first press of the seek/track panel switch or fails, turn the screen and audio on and then off again before attempting to start diagnostic mode.

    4. 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. A01W050

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

  5. SYSTEM CHECK


    1. A01W1SB

      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. A01W5PNN01

      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 Select "Memory CLR" for 3 seconds to clear all present and history DTCs and registered connected device names.
      *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 Radio receiver assembly -
      AMP Stereo component amplifier assembly MOST communication line
      DISP Multi-display assembly AVC-LAN communication line
      Rr-CONT*1 Rear control switch AVC-LAN communication line
      DCM*2 Telematics transceiver USB communication line
      R-TOUCH Remote touch (remote operation board) Local bus communication line

      • *1: w/ Rear Control Switch

      • *2: w/ Manual (SOS) Switch for G-BOOK

      *c: Check Result Description
      Result Meaning Action
      OK The device did not respond with a DTC. -
      MOST MOST communication error Perform "MOST Line Check" to check the connection of each device in the MOST network.
      DETAIL The device responded 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 or MOST network 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 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
      IF-BOX_USB No. 1 stereo jack adapter assembly USB communication line
    2. A01W3NFN02

      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 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. A01VZHAN01

      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 Radio receiver assembly
      AMP Stereo component amplifier assembly
      *c: Check Result
      Result Meaning
      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. A01W5JQ

      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 present.

        • 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 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.

          Click here

        • 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).

        Click here

        Note

        The navigation system outputs DTCs for the following systems. 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 systems.

        System Proceed to
        Parking Assist Monitor System (w/o Parallel Parking Assist Function)

        Click here

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


    1. A01VZ77

      Clear DTCs


      1. Select "Memory CLR" for 3 seconds.

      2. Check that the check results are cleared.

        Tech Tips


        • 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. A01W2T3

      Recheck


      1. Select "Recheck".

      2. A01VZH1

        Check that all check results are "OK". 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.