The P0013 fault code, applicable to all car manufacturers, means “B Camshaft Position – Actuator Circuit/Open (Bank 1)”.
P0012 trouble code, applicable to all car manufacturers, means “A Camshaft Position – Timing Over-Retarded (Bank 1)”.
P0011 is a diagnostic trouble code (DTC) applicable to all vehicle manufacturers, meaning “A Camshaft Position – Timing Over-Advanced or System Performance (Bank 1)”.
The P0010 trouble code, applicable to all car manufacturers, means “A Camshaft Position Actuator Circuit/Open (Bank 1)”.