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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U1821 /codes/dtcs/u1821
Communication Network System
U1823 /codes/dtcs/u1823
Communication Network System
U1824 /codes/dtcs/u1824
Communication Network System
U1825 /codes/dtcs/u1825
Communication Network System
U1826 /codes/dtcs/u1826
Communication Network System
U1827 /codes/dtcs/u1827
Communication Network System
U1828 /codes/dtcs/u1828
Communication Network System
U1829 /codes/dtcs/u1829
Communication Network System
U182A /codes/dtcs/u182a
Communication Network System
U182D /codes/dtcs/u182d
Communication Network System
U182E /codes/dtcs/u182e
Communication Network System
U182F /codes/dtcs/u182f
Communication Network System
U1830 /codes/dtcs/u1830
Communication Network System
U1831 /codes/dtcs/u1831
Communication Network System
U1832 /codes/dtcs/u1832
Communication Network System

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