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EC-154 < DTC/CIRCUIT DIAGNOSIS > [VQ35DE] P0011, P0021 IVT CONTROL P0011, P0021 IVT CONTROL DTC Logic INFOID:0000000009719889 DTC DETECTION LOGIC NOTE: . DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct- Turn ignition switch OFF and wait at least 10 seconds. 2. Turn ignition switch ON. 3. Turn ignition switch OFF and wait at least 10 seconds. TESTING CONDITION: >> GO TO 2. 2. PERFORM DTC CONFIRMATION PROCEDURE-I With CONSULT 1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT. 2. Start engine and warm it up to the normal operating temperature. 3. Maintain the following conditions for at least 6 consecutive seconds. Hold the accelerator pedal as steady CAUTION: Always drive at a safe speed. 4. Stop vehicle with engine running and let engine idle for 10 seconds. 5. Check 1st trip DTC. With GST Follow the procedure “With CONSULT” above. Is 1st trip DTC detected? YES >> Go to NO >> GO TO 3. 3. PERFORM DTC CONFIRMATION PROCEDURE-II With CONSULT DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0011 Intake valve timing There is a gap between angle of target and • Crankshaft position sensor (POS) portion of the camshaft • Timing chain installation take valve timing control P0021 Intake valve timing ENG SPEED 1,200 - 2,000 rpm COOLAN TEMP/S More than 60 ° C (140 ° F) B/FUEL SCHDL More than 7.3 msec Selector lever D position |