Network, generic

U0192 Lost Communication With Personal Computer

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

U0192 is reserved for a personal computer that exchanges data with the vehicle network, for example a built-in carputer, a docked laptop in a police or service vehicle, or a PC-based infotainment unit. When that node stops sending, a listening module stores the code. No manufacturer documents U0192 publicly: the Saab U-code lists from GM omit it, the NHTSA bulletin index has no match, and GM's preliminary information PIP5094 only names it among keywords for checking terminal fit before circuit tests. GM's procedure for U0100-U02FF gives the usual rule, a supervised periodic message missing at 9-16 V. First confirm that a PC is fitted at all; a stray entry after a retrofit or recoding is likely. U0493 is invalid data. No MIL, driving unaffected.

Likely causes

Network coding expects a PC that is not fitted or was removed
Retrofit interface, dock or bus connector to the PC faulty
PC or its interface without supply, or shut down
Onboard PC faulty or software hung

Symptoms

  • PC functions or data no longer available in the vehicle
  • Code stored without any noticeable fault

Repair estimate

DifficultyEasyDIY possible
Parts and labour€0–300
Time0.3–1.5 h

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

Parts involved

onboard pccan bus wiring

Related codes

U0191U0198U0493

References: saabwisonline.com, static.nhtsa.gov, en.wikipedia.org.