Diagnostic trouble code (DTC) information

Condition 

Diagnostic trouble code (DTC) AUM-4303 is stored if the quality of the read off signal is bad or if the disc in the MD player rotates unevenly.

Possible Source 

• Reading fault in the MD player.
• Defective MD player.
• Defective Mini disc.

Fault symptom[s] 

• No sound reproduction from MD player.
• The error message is displayed in the audio unit display.