NAVIGATION SYSTEM(for Radio and Display Type) USB Audio System Recognition/Play Error

DTC Code DTC Name
USB Audio System Recognition/Play Error

DESCRIPTION

When a USB device or "iPod" is connected to the USB jack of the No. 1 stereo jack adapter assembly, it must have playable files. The device must also communicate with and be recognized by the navigation ECU. This diagnosis procedure is for when a device is not recognized, or files from the device cannot be played normally.

WIRING DIAGRAM

E294735E03

CAUTION / NOTICE / HINT

Tip:

  • When a large amount of data is in a USB device, it may take a while to before play begins.

  • When using a USB device, files that are copy protected or encrypted cannot be played.

  • When files are not played in the sorted order, perform the following procedure before inspection.

    1. Add numbers in front of the file names.

    2. Put the files in a folder and copy the folder data to the USB device.

Note:

Check that the wire harness is properly installed and does not have any sharp bends, pinching or loose connections.

Click hereClick here

PROCEDURE

  1. CHECK USB DEVICE OR "iPod"

    1. Disconnect the USB device or "iPod" from the No. 1 stereo jack adapter assembly.

    2. Check if playable files are present on the USB device or "iPod".

      Tip:

      Refer to System Description for playable files.

      Click here

    3. Check if the USB device is a compatible format or "iPod" is a compatible version.

      Tip:

      Refer to System Description for compatible formats and versions.

      Click here

    Result

    Result

    Proceed to

    No playable files exist, or incompatible device format or version

    A

    Playable files exist, and compatible device format or version

    B
    A

    USB DEVICE FORMAT WAS INCOMPATIBLE, "iPod" VERSION WAS INCOMPATIBLE, OR NO PLAYABLE FILES PRESENT

    B

  2. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU - NO. 1 STEREO JACK ADAPTER ASSEMBLY)

    1. Disconnect the A navigation ECU connector.

    2. Disconnect the G145 No. 1 stereo jack adapter assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A-1 (USV1) - G145-1 (UPI)

      Always

      Below 1 Ω

      A-2 (US1-) - G145-2 (UDO-)

      Always

      Below 1 Ω

      A-3 (US1+) - G145-3 (UDO+)

      Always

      Below 1 Ω

      A-4 (UGD1) - G145-4 (UJSG)

      Always

      Below 1 Ω

      A-5 (USG1) - G145-5 (UJSS)

      Always

      Below 1 Ω

      A-1 (USV1) - Body ground

      Always

      10 kΩ or higher

      A-2 (US1-) - Body ground

      Always

      10 kΩ or higher

      A-3 (US1+) - Body ground

      Always

      10 kΩ or higher

      A-4 (UGD1) - Body ground

      Always

      10 kΩ or higher

      A-5 (USG1) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT NAVIGATION ECU

    1. E226479C28

      *a

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)

      Reconnect the A navigation ECU connector.

    2. Disconnect the No. 1 stereo jack adapter assembly connector.

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection

      Switch Condition

      Specified Condition

      G145-1 (UPI) - G145-4 (UJSG)

      Ignition switch ACC

      4.5 to 5.5 V

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE NAVIGATION ECU

    Click here

    OK

  4. FORMAT USB DEVICE OR RESTORE "iPod" AND RECHECK

    1. Delete all files in the USB device or "iPod" and format/ restore it.

      Note:

      Formatting a USB device or restoring an "iPod" erases all music on the device. Make sure that back up music data is available before performing this operation.

    2. Save the data again and check if it can be played on the in-vehicle device.

      OK

      Malfunction disappears.

    Result

    Proceed to

    OK

    NG
    OK

    END (USB OR "iPod" IS DEFECTIVE)

    NG

  5. REPLACE USB DEVICE OR "iPod"

    1. Turn the ignition switch off.

    2. Turn the ignition switch to ACC.

    3. Connect a known good USB device or "iPod" to the No. 1 stereo jack adapter assembly.

      Tip:

      • If the malfunction occurred when a USB device was in use, use another USB device for the inspection. If the malfunction occurred when an "iPod" was in use, use another "iPod" for the inspection.

      • Refer to System Description for compatible formats and versions.

        Click here

    Result

    Proceed to

    NEXT
    NEXT

  6. CHECK USB DEVICE OR "iPod"

    1. Check if USB device or "iPod" is recognized by navigation ECU, or if information such as track, artist and album names is displayed on screen.

      OK

      USB device or "iPod" is recognized or track information such as track, artist and album names are displayed.

    Result

    Proceed to

    OK

    NG
    OK

    USB DEVICE OR "iPod" IS INCOMPATIBLE OR DEFECTIVE

    NG

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click here