U0489Invalid Data Received From Digital Disc Player/Changer Module B
- Generic OBD-II code · Network
- How the car detects it
- U0489 refers to disc player/changer module B, a second drive in the same network, such as a changer added to a radio that already plays CDs or a DVD unit for the rear seats. The receiver still hears it but rejects the content, whereas loss of contact is U0188; drive A has U0488. Two-drive layouts did exist at GM: the 2004-2009 Cadillac XLR paired its navigation radio with a separate CD changer, and GM PIC4858A notes that a replacement changer installed with its shipping pin still in place refuses discs and shows a CD error. No maker states which drive counts as B, and none documents U0489. Discs in that unit cannot be played, while radio and other sources work; no MIL.
- What you may notice
- Second disc drive does not accept or play discs
- Disc error message on the display
- Likely causes
- PossibleReplacement changer fitted without removing the transport lock
- PossibleMechanical or internal fault in the changer
- RareVehicle coded for a second drive that is missing or of another type
- 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.