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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Fault codes
P051B
Crankcase Pressure Sensor Circuit Range/Performance
Generic
Vehicle Speed and Idle Control System
High severity
P051C
Crankcase Pressure Sensor Circuit Low
Generic
Vehicle Speed and Idle Control System
High severity
P052A
Cold Start A Camshaft Position Timing Over-Advanced Bank 1
Generic
Vehicle Speed and Idle Control System
High severity
P052C
Cold Start A Camshaft Position Timing Over-Advanced Bank 2
Generic
Vehicle Speed and Idle Control System
High severity
P052E
Positive Crankcase Ventilation Regulator Valve Performance
Generic
Vehicle Speed and Idle Control System
High severity
P053A
Positive Crankcase Ventilation Heater Control Circuit / Open
Generic
Vehicle Speed and Idle Control System
High severity
P054A
Cold Start Exhaust B Camshaft Position Timing Over-Advanced Bank 1
Generic
Vehicle Speed and Idle Control System
High severity
P054C
Cold Start Exhaust B Camshaft Position Timing Over-Advanced Bank 2
Generic
Vehicle Speed and Idle Control System
High severity
P054D
Cold Start Exhaust B Camshaft Position Timing Over-Retarded Bank 2
Generic
Vehicle Speed and Idle Control System
High severity
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