Audio System Symptom Troubleshooting - Audio system information does not display on the audio/navigation switch panel display unit (with navigation system)
  1. Check for continuity between the terminals of the audio/navigation switch panel 24P connector and body ground according to the table.
    Audio/navigation switch panel connector
    Wire color
    3
    BLU
    15
    GRN
    16
    RED

Is there continuity?
YES -
Repair short to body ground in the wire(s) between the audio unit and audio/navigation switch panel.■
NO -
Go to Step 10 .