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 audio unit connector B (20P) and the audio/navigation switch panel 24P connector according to the table.
    Audio unit connector
    Audio/navigation switch panel connector
    Wire color
    B6
    16
    RED
    B7
    15
    GRN
    B17
    3
    BLU

Is there continuity?
YES -
Go to Step 9 .
NO -
Repair open in the wire(s) between the audio unit and audio/navigation switch panel.■