OBD-II Diagnostic Trouble Codes Database
Over 20K+ codes with detailed explanations, symptoms, causes, and repair solutions. Fast search, free access, and professional-grade information for mechanics and car enthusiasts.
Important Notice
OBD-II diagnostic codes can vary by vehicle manufacturer, model year, and specific configuration. While P-codes (powertrain) follow SAE J2012 standards, U-codes (network communication) and manufacturer-specific interpretations may differ. Always consult your vehicle's service manual or a qualified technician for accurate diagnosis.
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