Diagnostic Trouble Code (DTC) Information

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.