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.
C0040 — vehicles with official records naming this code
C0040 is named in NHTSA-published manufacturer communications or investigations for 16 vehicle families, including:
- Chevrolet Impala model years 2007-2016, 2019-2020 · 21 records
- Buick LaCrosse model years 2007-2009, 2013 · 7 records
- Pontiac Grand Prix model years 2007-2008 · 4 records
- Chevrolet Malibu model years 2013, 2019-2020 · 3 records
- GMC Acadia model years 2007-2008 · 2 records
- Saab 9-7X model years 2007-2008 · 2 records
- Saturn Outlook model years 2007-2008 · 2 records
- Isuzu Ascender model years 2005, 2007 · 2 records
- Buick Enclave model years 2008 · 1 record
- Buick Envision model years 2016 · 1 record
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 |
|---|---|---|---|---|---|
| C0040 | Brake Pedal Switch A | ABS & braking | Generic | Not manufacturer-specific | Not classified |
| C0040 | A faulty wheel speed sensor, A problem with the wheel speed sensor circuit, Reluctor issues, A problem with the ABS module | Chassis | Manufacturer-specific | Audi | Not classified |
No matching codes
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