Vehicle diagnostics, decoded
Look up the code.
Understand the fault.
A clean, searchable reference for OBD-II and manufacturer diagnostic trouble codes—built around definitions, vehicle evidence and practical interpretation.
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B0001Driver Frontal Stage 1 Deployment ControlBodyBB0001-13B0001-13 vehicle fault codeMultiple/unspecifiedBB0002Driver Frontal Stage 2 Deployment ControlBodyBB0002-13B0002-13 vehicle fault codeMultiple/unspecifiedBB0002-56B0002-56 vehicle fault codeMultiple/unspecifiedBB0003Driver Frontal Stage 3 Deployment ControlBodyBB0004Driver Knee Bolster Deployment ControlBodyBB0005Collapsible Steering Column Deployment ControlBodyB
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01
All fault codes
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Open code directory →02Manufacturers
Explore 539 covered model lines and the public evidence connected to each make.
Browse 61 makes →03Read a DTC
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