385+ diagnostic trouble codes with explanations, causes, and repair urgency. Search by code or symptom to understand what your check engine light means.
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P0010P0011P0030P0031P0100P0101P0110P0128P0171P0172P0174P0175P0300P0301P0302P0303P0304P0305P0306P0401P0420P0430P0441P0442P0455P0480P0500P0505P0562P0600P0700P0715P0725P0115P0130P0136P0307P0308P0340P0410P1136P1143P1176P1297P1421P1550P2187P2189P2261P2293P2294P3001P1411P1582P1602P1639P2181B0001B0100B1000B1200B1041B2013C0035C0040C0050C0060C0110C0131C0205C0265C0300U0001U0100U0101U0140U0151U0155U0164U0214U0401Our factory diagnostic tools read ALL codes — including manufacturer-specific codes not listed in generic databases. Book a full diagnostic scan and get every code explained in your personalized report.
OBD2 (On-Board Diagnostics II) is the standardized system that your vehicle uses to self-diagnose and report problems. When the check engine light illuminates, the engine control unit (ECU) has stored one or more Diagnostic Trouble Codes (DTCs) that identify the specific system or component experiencing an issue.
Every OBD2 code follows a structured format. The first letter indicates the system: P for Powertrain (engine and transmission), B for Body (airbags and interior electronics), C for Chassis (ABS, brakes, suspension), and U for Network/Communication (CAN bus and inter-module messaging). The second character (0 or 1) tells you whether the code is a generic SAE standard (0) or manufacturer-specific (1). Generic codes like P0171 are readable by any OBD2 scanner, while manufacturer-specific codes require factory-level diagnostic equipment.
This is why a cheap code reader from a parts store often gives an incomplete picture. At AudiZambia, we use factory-grade VCDS and specialized diagnostic tools that access every control module in your Audi or VW — engine, transmission, ABS, airbag, climate, infotainment, and more. If your check engine light is on, don't guess — book a professional diagnostic scan and get the complete picture.