Audio System Symptom Troubleshooting - There is no sound from the left speaker when the USB device is connected

  1. Check for continuity between USB adapter unit connector A (14P) and audio unit connector C (14P) according to the table.
    USB adapter unit connector
    Audio unit connector
    Wire color
    AUDIO L+
    A6
    C6
    BLU
    AUDIO L−
    A14
    C14
    PUR

Is there continuity?
YES -
Replace the USB adapter unit. ■
NO -
Repair open in the wire(s) between the USB adapter unit and the audio unit.■