Audio System Symptom Troubleshooting - There is no sound from the left speaker when the USB device is connected
  1. Check for continuity between terminals of USB adapter unit connector A (14P) and body ground according to the table. Then check for continuity between the same terminals listed in the table and USB adapter unit connector A (14P) terminal No. 4 (The harness shield).
    USB adapter unit connector
    Wire color
    Audio L+
    A6
    BLU
    Audio L−
    A14
    PUR

Is there continuity?
YES -
There is a short in the wire(s) between the USB adapter unit and the audio unit. Replace the affected shielded harness.
NO -
Go to Step 14 .