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.

  • 12,128 OBD-II codes
  • 18,805 reference definitions
  • 16,185 publicly searchable across 10,181 codes

Review-withheld definitions are excluded; lookup records are not published diagnostic pages.

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P0201 — vehicles with official records naming this code

P0201 is named in NHTSA-published manufacturer communications or investigations for 32 vehicle families, including:

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
P0201 Cylinder 1 Injector A Circuit Engine & drivability Generic Not manufacturer-specific Not classified
P0201 Defective Fuel Injector, Faulty or corroded Fuel Injector, wiring, and or connections, Plugged Fuel Injector, Dirt in the Fuel Injector Powertrain Manufacturer-specific Audi Not classified