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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U1A12 /codes/dtcs/u1a12
Communication Network System
U1A13 /codes/dtcs/u1a13
Communication Network System
U1A14 /codes/dtcs/u1a14
Communication Network System
U1A17 /codes/dtcs/u1a17
Communication Network System
U1A18 /codes/dtcs/u1a18
Communication Network System
U1A19 /codes/dtcs/u1a19
Communication Network System
U1A1A /codes/dtcs/u1a1a
Communication Network System
U1A1B /codes/dtcs/u1a1b
Communication Network System
U1A1C /codes/dtcs/u1a1c
Communication Network System
U1A1D /codes/dtcs/u1a1d
Communication Network System
U1A1E /codes/dtcs/u1a1e
Communication Network System
U1A20 /codes/dtcs/u1a20
Communication Network System
U1A21 /codes/dtcs/u1a21
Communication Network System
U1A22 /codes/dtcs/u1a22
Communication Network System
U1A23 /codes/dtcs/u1a23
Communication Network System

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