Diagnostic trouble code (DTC) information

Condition 

Diagnostic trouble code (DTC) AUM-4201 is stored if the CD player is unable to focus after a number of attempts.

Possible Source 

• Focusing fault in the CD player.
• Defective CD player.
• Disc inserted incorrectly.
• Defective CD disc.
• Condensation on disc or CD player.

Fault symptom[s] 

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