Network, generic

U0191 Lost Communication With Television

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

U0191 means the television tuner has dropped off the vehicle network. J2012 simply calls it Television: a receiver for mostly digital terrestrial TV that hands the picture to the central display or to rear screens. GM fills the slot under that name in the Saab U-code lists of the 9-5 from 2010-2011 and the 9-4X from 2011; the NHTSA bulletin index has no matching entry. A listening unit, usually the radio or the display, records the code once the tuner's cyclic frames stay away while supply voltage is normal (GM: 9-16 V). The TV source then disappears or stays black, while radio and navigation carry on. U0492 reports invalid data from the same tuner, U0184 concerns the radio. No MIL.

Likely causes

TV tuner without power or ground (fuse, connector)
History entry after flat battery or tuner unplugged with bus awake
Bus line or connector to the tuner damaged
TV tuner module faulty

Symptoms

  • TV source missing from the media menu
  • Black screen or no-signal message when TV is selected
  • Code stored in radio or display unit

Repair estimate

DifficultyMediumDIY possible
Parts and labour€0–600
Time0.3–2 h

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

Parts involved

television tuner modulecan bus wiring

Related codes

U0184U0196U0492

References: saabwisonline.com, saabwisonline.com, saabwisonline.com.