About DTC-Logic
The most complete OBD2 reference on the web
13k+
DTC Codes
7
Languages
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Families
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What is DTC-Logic?
DTC-Logic is a free reference platform for OBD2 error codes. Our database contains over 13,000 DTC codes covering all families: Powertrain (P), Body (B), Chassis (C) and Network (U).
About
Whether you are a professional mechanic or a driver wanting to understand your vehicle's Check Engine light, our interactive diagnostic tool helps you identify the problem and assess its severity.