Network, generic

U0190 Lost Communication With Digital Disc Player/Changer Module D

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

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.

Likely causes

Disc unit D without power or ground
History entry after flat battery or unit unplugged with bus awake
Connector or bus line to module D damaged
Disc player/changer D faulty

Symptoms

  • Disc source D missing
  • Magazine not loaded or ejected
  • Code stored in the head unit

Repair estimate

DifficultyEasyDIY possible
Parts and labour€0–400
Time0.3–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

disc player modulecan bus wiring

Related codes

U0184U0187U0188U0189

References: saabwisonline.com, en.wikipedia.org.