CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0011, P0012, P0021 OR P0022)
PERFORM ACTIVE TEST BY CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OPERATE OCV)
CHECK WHETHER DTC OUTPUT RECURS (DTC P0011, P0012, P0021 OR P0022)
CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPED TEETH ON TIMING CHAIN)
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV)
INSPECT OIL CONTROL VALVE FILTER
REPLACE CAMSHAFT TIMING GEAR ASSEMBLY
READ VALUE OF INTELLIGENT TESTER (CHECK IF DTC OUTPUT RECURS)