U048AInvalid Data Received From Digital Disc Player/Changer Module C
- Generic OBD-II code · Network
- How the car detects it
- U048A stands for a third disc player or changer, module C. It is set when that unit's frames reach the receiver but fail its checks; silence would be U0189. Three networked drives in one vehicle are rare. Luxury cars with a DVD changer in addition to the head unit come closest: Audi's update 72K1 for the 2019 A8 replaced the changer mounting because its trim cover could come loose. No manufacturer assigns the letter C publicly or documents U048A, so the code works mainly as a reserve slot in the J2012 list. If it does appear, first check whether the vehicle actually has such a unit or carries a coding error after a retrofit, then power, ground and the bus link to the drive. No MIL; driving is unaffected.
- What you may notice
- Disc playback from that unit unavailable
- Code present without any noticeable fault on cars without such a unit
- Likely causes
- PossibleWrong vehicle coding after a retrofit or removal of a disc unit
- PossibleSupply, ground or bus connection fault at the third drive
- RareInternal fault of the disc unit
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.