U2003 — Audio Compact Disk / Disk Jockey Unit is Not Responding

What it means

U2003 is an OBD-II diagnostic trouble code: Audio Compact Disk / Disk Jockey Unit is Not Responding.

Typical fix

Confirm the code with an OBD-II scanner, then inspect the component or circuit named above. Consult a vehicle-specific service manual for the full diagnostic and repair procedure.