OBD-II Code Decoder
Search the licensed P, B, C, and U reference library by code, definition, system, or manufacturer. Reference-only results are not a complete diagnosis.
Review-withheld definitions are excluded; lookup records are not published diagnostic pages.
U0100 — vehicles with official records naming this code
U0100 is named in NHTSA-published manufacturer communications or investigations for 39 vehicle families, including:
- Chevrolet Suburban model years 2007-2017 · 26 records
- Chevrolet Tahoe model years 2007-2017 · 26 records
- GMC Yukon model years 2007-2017 · 26 records
- Cadillac Escalade model years 2007-2017 · 25 records
- Cadillac CTS model years 2008-2014 · 19 records
- Cadillac STS model years 2006-2011 · 18 records
- Chevrolet Corvette model years 2007-2014 · 18 records
- Chevrolet Silverado model years 2007-2012, 2015-2017 · 13 records
- GMC Sierra model years 2007-2012, 2015-2017 · 13 records
- Chevrolet Avalanche model years 2007-2012 · 12 records
A code named in a manufacturer communication means the document refers to it for those vehicles. It is not a diagnosis of any car, and it does not mean the code is common on that vehicle.
Matching definitions: 2 · Unique codes: 1.
| Code | Meaning | System | Scope | Manufacturer | Severity |
|---|---|---|---|---|---|
| U0100 | Lost Communication With ECM/PCM A | Engine & drivability | Generic | Not manufacturer-specific | Not classified |
| U0100 | A faulty PCM, A problem with the control module circuit, A problem with the CAN bus | Network / communication | Manufacturer-specific | Audi | Not classified |
No matching codes
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