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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P1911 Internal malfunction detected in ECM
Volkswagen Computer Output Circuit High severity
P1913 Issue in pressure sensor in brake booster
Volkswagen Vehicle Speed and Idle Control System High severity
P1914 Issue in pressure sensor in brake booster
Volkswagen Vehicle Speed and Idle Control System High severity
P1915 Issue in engine coolant pump
Volkswagen Fuel and Air Metering High severity
P1917 Open circuit in engine coolant pump
Volkswagen Fuel and Air Metering High severity
P1918 Issue in alternator
Volkswagen Computer Output Circuit High severity
P1919 Issue in alternator
Volkswagen Computer Output Circuit High severity
U0073 Control Module Communication Bus Off
Communication Network System High severity
U0074 /codes/dtcs/u0074
Communication Network System
U0075 /codes/dtcs/u0075
Communication Network System
U0076 /codes/dtcs/u0076
Communication Network System
U0077 /codes/dtcs/u0077
Communication Network System
U0079 /codes/dtcs/u0079
Communication Network System
U0080 /codes/dtcs/u0080
Communication Network System
U0081 /codes/dtcs/u0081
Communication Network System

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