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

for Preparation Click here


WIRING DIAGRAM


E221775E01


INSPECTION PROCEDURE

HINT:
  1. When a large amount of data is in a USB device, it may take a while before play begins.
  2. When using a USB device, files that are copy protected or encrypted due to copyright reasons cannot be played.
  3. 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.
1.CHECK USB DEVICE OR "iPod"
  1. Disconnect the USB device or "iPod" from the No. 1 stereo jack adapter assembly.

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

    HINT:
    Refer to System Description for playable files (Click here).
  1. Check if the USB device is a compatible format or "iPod" is a compatible version.

    HINT:
    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


B
Go to step 2
A

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

2.CHECK HARNESS AND CONNECTOR


    E210288E05
  1. Disconnect the E121 radio receiver assembly connector.



    E210105E62
  1. Disconnect the E120 No. 1 stereo jack adapter assembly connector.

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

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    E121-1 (USV1) - E120-1 (UPI)
    Always
    Below 1 Ω
    E121-2 (US1-) - E120-2 (UDO-)
    Always
    Below 1 Ω
    E121-3 (US1+) - E120-3 (UDO+)
    Always
    Below 1 Ω
    E121-4 (UGD1) - E120-4 (UJSG)
    Always
    Below 1 Ω
    E121-5 (USG1) - E120-5 (UJSS)
    Always
    Below 1 Ω
    E121-1 (USV1) - Body ground
    Always
    10 kΩ or higher
    E121-2 (US1-) - Body ground
    Always
    10 kΩ or higher
    E121-3 (US1+) - Body ground
    Always
    10 kΩ or higher
    E121-4 (UGD1) - Body ground
    Always
    10 kΩ or higher
    E121-5 (USG1) - Body ground
    Always
    10 kΩ or higher
Text in Illustration 
*a
Front view of wire harness connector
(to Radio Receiver Assembly)
*b
Front view of wire harness connector
(to No. 1 Stereo Jack Adapter Assembly)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK USB POWER SOURCE
  1. Reconnect the radio receiver assembly connector.



    E210105E46
  1. Disconnect the E120 No. 1 stereo jack adapter assembly connector.

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

    Standard Voltage:
    Tester Connection
    Condition
    Specified Condition
    E120-1 (UPI) - E120-4 (UJSG)
    Ignition switch ACC
    5 V
Text in Illustration 
*a
Front view of wire harness connector
(to No. 1 Stereo Jack Adapter Assembly)


NG
REPLACE RADIO RECEIVER ASSEMBLY (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.

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

    NOTICE:
    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.


NG
Go to step 5
OK

END 

5.REPLACE USB DEVICE OR "iPod"
  1. Turn the ignition switch off.

    HINT:
    When this malfunction occurs, it is necessary to turn off the ignition switch to make it possible for the vehicle to recognize a new device when it is connected.
  1. Turn the ignition switch to ACC.

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

    HINT:
    1. 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.
    2. Refer to System Description for compatible formats and versions (Click here).

NEXT


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

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


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

USB DEVICE OR "iPod" WAS INCOMPATIBLE OR DEFECTIVE