U0488Invalid Data Received From Digital Disc Player/Changer Module A
- Generic OBD-II code · Network
- How the car detects it
- U0488 is logged when the first networked disc drive, module A, still reports on the bus but its data fail the receiver's checks; U0187 would mean the drive is silent, while U0489, U048A and U0491 cover drives B to D. Many GM vehicles of 2013-2015 carried such a separate media disc player with its own fuse: bulletin PIT5344B (ATS, Escalade, Silverado, Tahoe and others) told technicians to cycle that fuse when CD playback stopped and to replace the player only if power and ground tested fine. In optical MOST networks a drive of this kind is a ring member that streams its audio to the head unit. No manufacturer documents U0488 itself. The radio then refuses disc playback while other sources keep working; no MIL.
- What you may notice
- CD or DVD playback unavailable
- Other audio sources keep working
- Likely causes
- LikelyDisc player hung internally, cleared by a power cycle
- PossiblePoor supply or ground at the disc player
- RareDisc player itself defective
- Repair
- Medium · Often possible to do yourself.Typical cost: €0 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.