U0192 code meaning
Lost Communication With Personal Computer
What U0192 means
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.
U0192 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyEasy, DIY possible
- Typical labor0.3 to 1.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0192
- PC functions or data no longer available in the vehicle
- Code stored without any noticeable fault
Common causes of U0192
- Most likelyNetwork coding expects a PC that is not fitted or was removed
- PossibleRetrofit interface, dock or bus connector to the PC faulty
- PossiblePC or its interface without supply, or shut down
- Less likelyOnboard PC faulty or software hung
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Onboard pcCAN bus wiring
What each part of U0192 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 92 | The exact fault in that area. |
What to do next
- Note U0192 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about U0192
What does U0192 mean?
U0192 means "Lost Communication With Personal Computer". 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. It is a generic code, so it means the same on every make.
Is it safe to drive with U0192?
U0192 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0192 fail an emissions test?
U0192 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is U0192 to fix?
Difficulty: easy. A typical repair takes 0.3 to 1.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will U0192 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.