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.
P0731 — vehicles with official records naming this code
P0731 is named in NHTSA-published manufacturer communications or investigations for 26 vehicle families, including:
- Chevrolet Silverado model years 2001-2013 · 19 records
- GMC Sierra model years 2001-2013 · 19 records
- Cadillac DeVille model years 2000-2003 · 6 records
- Cadillac Seville model years 2000-2003 · 6 records
- Ford Expedition model years 2018-2022 · 5 records
- Ford Mustang model years 2018-2022 · 5 records
- Ford Ranger model years 2019-2023 · 5 records
- Lincoln Navigator model years 2018-2022 · 5 records
- Cadillac Eldorado model years 2000-2002 · 5 records
- Infiniti G20 model years 1995-1996 · 4 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: 1 · Unique codes: 1.
| Code | Meaning | System | Scope | Manufacturer | Severity |
|---|---|---|---|---|---|
| P0731 | Gear 1 Incorrect Ratio | Powertrain | Generic | Not manufacturer-specific | Not classified |
No matching codes
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