Audio System Symptom Troubleshooting - USB device does not function (with navigation)
  1. Check for continuity between USB adapter unit connector A (14P) and the audio unit connector C (14P) according to the table.
    USB adapter unit connector
    Audio unit connector
    Wire color
    GA-NET BUS+
    A9
    C9
    BLU
    GA-NET BUS−
    A10
    C10
    PNK

Is there continuity?
YES -
Go to Step 20 .
NO -
There is an open or short in the wire(s) between the USB adapter unit and the audio unit. Replace the affected shielded harness.■