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DTC Troubleshooting

DIAGNOSTIC PROCEDURES CHART

Step Action YES NO
1  Was "Engine and Emission Control System Check" performed?  Go to Step 2. Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK .
2  DTC check 
  1. Check DTC.

Is there DTC(s) other than P0011 and P0012? 		 Go to applicable DTC (s). Go to Step 3.
3  OCV drive circuit and OCV ground circuit check 
  1. Check "A1" and "B1" circuits according to Step 2 of DTC P0010  .

Are they in good condition? 		 Go to Step 4. Repair or replace defective wire harness.
4  Oil pressure check 
  1. Check oil pressure, see OIL PRESSURE CHECK .

Is it in good condition? 		 Go to Step 5. Repair or replace defective parts.
5  OCV oil circuit visual check 
  1. Remove cylinder head cover, see CYLINDER HEAD COVER REMOVAL AND INSTALLATION .
  2. Check oil pressure leakage from OCV oil circuit.

Is it in good condition? 		 Go to Step 6. Repair or replace defective parts.
6  CKP sensor and sensor plate check 
  1. Check CKP sensor and sensor plate.

Are they in good condition? 		 Go to Step 7. Repair or replace defective parts.
7  CMP sensor and signal rotor check 
  1. Check CMP sensor and signal rotor, see CMP SENSOR INSPECTION .

Are they in good condition? 		 Go to Step 8. Repair or replace defective parts.
8  OCV check 
  1. Remove OCV, see OCV REMOVAL AND INSTALLATION .
  2. Check OCV for clogging or sludge.

Is it in good condition? 		 Go to Step 9. Repair or replace OCV, see OCV REMOVAL AND INSTALLATION .
9  OCV check 
  1. Check OCV, see OCV INSPECTION

Is it in good condition? 		 Go to Step 10. Replace OCV, see OCV REMOVAL AND INSTALLATION .
10  CMP actuator check 
  1. Check CMP actuator, see CAMSHAFT AND TAPPET INSPECTION .

Is it in good condition? 		 Go to Step 11. Replace CMP actuator, see CAMSHAFT AND TAPPET REMOVAL AND INSTALLATION .
11  Valve timing check 
  1. Check valve timing, see TIMING CHAIN AND CHAIN TENSIONER REMOVAL AND INSTALLATION .

Is it in good condition? 		 Replace ECM and recheck DTC, see ECM REMOVAL AND INSTALLATION . Adjust valve timing.
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