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No USB Audio Sound Output [Entertainment System [Without Center Display]]: Notes

DESCRIPTION AND POSSIBLE CAUSES

Description NO USB AUDIO SOUND OUTPUT
Radio, AUX audio, Bluetooth ® audio is output, but no USB sound
Possible Causes
  • USB device malfunction
  • Connector poor contact or terminal damage
  • Auxiliary jack/USB port malfunction
  • Open circuit in wiring harness between the following terminals:
    • Audio unit terminal 3A and auxiliary jack/USB port terminal UD
    • Audio unit terminal 3B and auxiliary jack/USB port terminal UC
    • Audio unit terminal 3C and auxiliary jack/USB port terminal UA
      • Audio unit terminal 3D and auxiliary jack/USB port terminal UB
  • Short to ground in wiring harness between the following terminals:
    • Audio unit terminal 3A and auxiliary jack/USB port terminal UD
    • Audio unit terminal 3B and auxiliary jack/USB port terminal UC
    • Audio unit terminal 3C and auxiliary jack/USB port terminal UA
      • Audio unit terminal 3D and auxiliary jack/USB port terminal UB
  • Short to power supply in wiring harness between the following terminals:
    • Audio unit terminal 3A and auxiliary jack/USB port terminal UD
    • Audio unit terminal 3B and auxiliary jack/USB port terminal UC
    • Audio unit terminal 3C and auxiliary jack/USB port terminal UA
      • Audio unit terminal 3D and auxiliary jack/USB port terminal UB
  • Audio unit malfunction
System Wiring Diagram
G11273635