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AUDIO AND VISUAL SYSTEM(w/o Multi-display) USB Audio System Recognition/Play Error

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DTC Code DTC Name
  USB Audio System Recognition/Play Error
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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 radio receiver assembly. This diagnosis procedure is for when a device is not recognized, or files from the device cannot be played normally.

Table 1. *a (Shielded) *b No. 1 Stereo Jack Adapter Assembly *c Radio Receiver Assembly
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Tip:

  • When a large amount of data is in a USB device, it may take a while to begin playing.

  • When using a USB device, files that are copy protected or encrypted due to copyright reasons 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.

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PROCEDURE


  1. Click here

    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
      Condition 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

    • BClick here
  2. Click here

    CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 1 STEREO JACK ADAPTER ASSEMBLY)


    1. Disconnect the H154 No. 1 stereo jack adapter assembly connector.

    2. Disconnect the H155 radio receiver assembly connector.

    3. A0005YFE02

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H154-1 (UPI) - H155-1 (USV1) Always Below 1 Ω
      H154-2 (UDO-) - H155-2 (US1-) Always Below 1 Ω
      H154-3 (UDO+) - H155-3 (US1+) Always Below 1 Ω
      H154-4 (UJSG) - H155-4 (UGD1) Always Below 1 Ω
      H154-5 (UJSS) - H155-5 (USG1) Always Below 1 Ω
      H154-1 (UPI) - Body ground Always 10 kΩ or higher
      H154-2 (UDO-) - Body ground Always 10 kΩ or higher
      H154-3 (UDO+) - Body ground Always 10 kΩ or higher
      H154-4 (UJSG) - Body ground Always 10 kΩ or higher
      H154-5 (UJSS) - Body ground Always 10 kΩ or higher
      Table 2. Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)
      *b

      Front view of wire harness connector

      (to Radio Receiver Assembly)

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  3. Click here

    INSPECT RADIO RECEIVER ASSEMBLY (NO. 1 STEREO JACK ADAPTER ASSEMBLY POWER SOURCE)


    1. Reconnect the H155 radio receiver assembly connector.

    2. A0003SJE02

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      H154-1 (UPI) - H154-4 (UJSG) Power switch on (ACC) 5 V
      Table 3. Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)

  4. Click here

    FORMAT USB DEVICE OR RESTORE "iPod" AND RECHECK


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

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

      Note:

      Formatting a USB device or restoring an "iPod" erases all music on the device.

      Ensure that backup music data is available before performing this operation.

      OK
      Malfunction disappears.

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    REPLACE USB DEVICE OR "iPod"


    1. Turn the power switch off.

      Tip:

      When this malfunction occurs, it is necessary to turn the power switch off to make it possible for the vehicle to recognize a new device when it is connected.

    2. Turn the power switch on (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).


  6. Click here

    CHECK USB DEVICE OR "iPod"


    1. Check if a USB device or "iPod" is recognized by the radio receiver assembly, and if information such as track, artist and album names are displayed on the screen.

      OK
      Malfunction disappears.

    • OK

      USB DEVICE OR "iPod" WAS INCOMPATIBLE OR DEFECTIVE

    • NG

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)