OBD fault code library

Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.

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U0516 /codes/dtcs/u0516
Communication Network System
U0517 /codes/dtcs/u0517
Communication Network System
U0518 /codes/dtcs/u0518
Communication Network System
U0519 /codes/dtcs/u0519
Communication Network System
U051B /codes/dtcs/u051b
Communication Network System
U051C /codes/dtcs/u051c
Communication Network System
U051D /codes/dtcs/u051d
Communication Network System
U051E /codes/dtcs/u051e
Communication Network System
U051F /codes/dtcs/u051f
Communication Network System
U0520 /codes/dtcs/u0520
Communication Network System
U0521 /codes/dtcs/u0521
Communication Network System
U0523 /codes/dtcs/u0523
Communication Network System
U0524 /codes/dtcs/u0524
Communication Network System
U0525 /codes/dtcs/u0525
Communication Network System
U0526 /codes/dtcs/u0526
Communication Network System

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