U0190Lost Communication With Digital Disc Player/Changer Module D
- Generic OBD-II code · Network
- How the car detects it
- U0190 is the last code in the J2012 disc player block and names module D, a fourth networked drive or changer. When that unit goes silent, the modules expecting its periodic traffic store U0190; GM's procedure for U0100-U02FF adds that a code stored only in history after a flat battery or a module disconnected with the bus awake is not a reason to replace parts. No manufacturer documents U0190 publicly, and a fourth disc drive is very rare in practice, so the code is unusual. A changer is a mechanical unit that loads discs from a magazine, which makes power supply and mounting location the first checks. U0187 to U0189 cover modules A to C. Only disc playback from D is lost; no MIL.
- What you may notice
- Disc source D missing
- Magazine not loaded or ejected
- Code stored in the head unit
- Likely causes
- LikelyDisc unit D without power or ground
- PossibleHistory entry after flat battery or unit unplugged with bus awake
- PossibleConnector or bus line to module D damaged
- RareDisc player/changer D faulty
- Repair
- Easy · Often possible to do yourself.Typical cost: €0 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.