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Home >> Lexus >> 2006 >> RX 330 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control System (3MZ-FE) >> SFI System >> DTC P0011 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1): DTC P0012 Camshaft Position "A" - Timing Over-Retarded (Bank 1): DTC P0021 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 2): DTC P0022 Camshaft Position "A" - Timing Over-Retarded (Bank 2) >> Inspection Procedure

Inspection Procedure

  1. CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPING TEETH OF TIMING BELT) 

    OK : 

    The matchmarks of crankshaft pulley and camshaft pulley are aligning. 

    NG : ADJUST VALVE TIMING 

    OK : Go to next step 

  2. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (OCV OPERATION) 
    1. Connect the intelligent tester to the DLC3.
    2. Start the engine and warm it up.
    3. Turn the ignition switch ON and push the intelligent tester main switch ON.
    4. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VVT CTRL B1 or VVT CTRL B2.
    5. Using the intelligent tester, operate the OCV and check the engine speed.

    Standard 

    OCV OPERATION

    Tester Operation Specified Condition
    OCV is OFF Normal engine speed
    OCV is ON Rough idle or engine stall

    NG : GO TO STEP   4 

    OK : Go to next step 

  3. CHECK WHETHER DTC OUTPUTS REOCCUR 
    1. Clear the DTCs.
      1. Erase the codes using one of the following methods: 1) use the intelligent tester, 2) disconnect the battery cable, or 3) remove the EFI and ETCS fuses for more than 60 seconds.

        HINT:

        After disconnecting the battery cable, perform the "INITIALIZE" procedure.

    2. Start and warm up the engine.
    3. Drive the vehicle for 10 minutes or more.
    4. Read output DTC using the intelligent tester.

      OK : 

      No DTC output. 

    HINT:

    *: DTC P0011, P0012, P0021 or P0022 is output when a foreign object enters in the engine oil system. These codes will stay registered even if the system returns to normal after a short time. Foreign objects are filtered out by the oil filter.

    OK : VVT SYSTEM OK 

    NG : Go to next step 

  4. CHECK ECM (OCV SIGNAL) 
    1. During idling, check the waveform of the ECM connector using an oscilloscope.

    Standard 

    ECM (OCV SIGNAL)

    Tester Connection Specified Condition
    E7-16 (OC1+) - E7-15 (OC1-)
    E7-14 (OC2+) - E7-13 (OC2-)    		 Correct waveform is shown in the illustration
    Fig 1: Checking ECM (OCV Signal)
    G04087131Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : REPLACE ECM 

    OK : Go to next step 

  5. CHECK OIL CONTROL VALVE FILTER 

    OK : 

    The filter is not clogged. 

    NG : REPLACE OIL CONTROL VALVE FILTER 

    OK : Go to next step 

  6. CHECK CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV) 

    OK : 

    OCV has no contamination and moves smoothly. 

    OK : GO TO STEP   8 

    NG : Go to next step 

  7. REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV) 

    NEXT 

  8. CHECK CAMSHAFT TIMING GEAR ASSEMBLY 

    OK : 

    Camshaft timing gear assembly rotate smoothly when apply pressure. 

    OK : GO TO STEP   10 

    NG : Go to next step 

  9. REPLACE CAMSHAFT TIMING GEAR ASSEMBLY 

    NEXT 

  10. CHECK FOR BLOCKAGE (OCV, OIL CHECK VALVE AND OIL HOLE) 

    OK : 

    No blockage. 

    NG : REPAIR OR REPLACE MALFUNCTION PARTS 

    OK : Go to next step 

  11. CHECK ANY OTHER DTCS OUTPUT 
  1. Clear the DTCs.
    1. Erase the codes using one of the following methods: 1) use the hand held tester, 2) disconnect the battery cable, or 3) remove the EFI NO. 1 and ETCS fuses for more than 60 seconds.

    HINT:

    After disconnecting the battery cable, perform the "INITIALIZE" procedure.

  2. Start and warm up the engine.
  3. Drive the vehicle around for 10 minutes or more.
  4. Read output DTC using the intelligent tester.

OK : 

No DTC output. 

HINT:

*: DTC P0011, P0012, P0021 or P0022 is output when a foreign object enters in the engine oil system. These codes will stay registered even if the system returns to normal after a short time. Foreign objects are filtered out by the oil filter.

OK : VVT SYSTEM OK 

NG : REPLACE ECM 

  1. CHECK VALVE TIMING (CHECK FOR LOOSE OR JUMPING TEETH OF TIMING BELT) 

    OK : 

    The matchmarks of crankshaft pulley and camshaft pulley are aligned. 

    NG : ADJUST VALVE TIMING 

    OK : Go to next step 

  2. CHECK OPERATION OF OCV 
    1. Start the engine.
    2. Check the engine speed with (*1) and (*2).
    1. Disconnect the V6 or V7 OCV connector (*1).
    2. Apply battery positive voltage between the terminals of the OCV (*2).

    Result 

    OPERATION OF OCV

    Proceed to Check (*1) Check (*2)
    A Normal engine speed Rough idle or engine stall
    B Conditions other than A Conditions other than A
    Fig 2: Checking Operation Of OCV
    G04087132Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B : GO TO STEP   4 

    A : Go to next step 

  3. CHECK WHETHER DTC OUTPUTS REOCCUR 
    1. Clear the DTCs.
      1. Erase the codes using one of the following methods: 1) use the hand held tester, 2) disconnect the battery cable, or 3) remove the EFI NO. 1 and ETCS fuses for more than 60 seconds.

      HINT:

      After disconnecting the battery cable, perform the "INITIALIZE" procedure.

    2. Start and warm up the engine.
    3. Drive the vehicle around for 10 minutes or more.
    4. Read output DTC using the OBD II scan tool.

    OK:  

    No DTC output. 

    HINT:

    *: DTCs P0011, P0012, P0021 or P0022 is output when a foreign object enters in the engine oil system. These codes will stay registered even if the system returns to normal after a short time. Foreign objects are filtered out by the oil filter.

    OK : VVT SYSTEM OK 

    NG : Go to next step 

  4. CHECK ECM (OCV SIGNAL) 
    1. During idling, check the waveform of the E7 ECM connector using an oscilloscope.

    Standard 

    ECM (OCV SIGNAL)

    Tester Connection Specified Condition
    E7-16 (OC1+) - E7-15 (OC1-)
    E7-14 (OC2+) - E7-13 (OC2-)    		 Correct waveform is shown in the illustration
    Fig 3: Checking ECM (OCV Signal)
    G04087133Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : REPLACE ECM 

    OK : Go to next step 

  5. CHECK OIL CONTROL VALVE FILTER 

    OK : 

    The filter is not clogged. 

    NG : REPLACE OIL CONTROL VALVE FILTER 

    OK : Go to next step 

  6. CHECK CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV) 

    OK : 

    OCV has no contamination and moves smoothly. 

    OK : GO TO STEP   8 

    NG : Go to next step 

  7. REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV) 

    NEXT 

  8. CHECK CAMSHAFT TIMING GEAR ASSEMBLY 

    OK : 

    Camshaft timing gear rotates smoothly when pressure is applied. 

    OK : GO TO STEP   10 

    NG : Go to next step 

  9. REPLACE CAMSHAFT TIMING GEAR ASSEMBLY 

    NEXT 

  10. CHECK FOR BLOCKAGE (OCV, OIL CHECK VALVE AND OIL HOLE) 

    OK : 

    No blockage. 

    NG : REPAIR OR REPLACE MALFUNCTION PARTS 

    OK : Go to next step 

  11. CHECK ANY OTHER DTCS OUTPUT 
    1. Clear the DTCs.
      1. Erase the codes using one of the following methods: 1) use the hand held tester, 2) disconnect the battery cable, or 3) remove the EFI NO. 1 and ETCS fuses for more than 60 seconds.

      HINT:

      After disconnecting the battery cable, perform the "INITIALIZE" procedure.

    2. Start and warm up the engine.
    3. Drive the vehicle around for 10 minutes or more.
    4. Read output DTC using the OBD II scan tool.

    OK:  

    No DTC output. 

    HINT:

    *: DTCs P0011, P0012, P0021 or P0022 is output when a foreign object enters in the engine oil system. These codes will stay registered even if the system returns to normal after a short time. Foreign objects are filtered out by the oil filter.

    NG : VVT SYSTEM OK 

    OK : REPLACE ECM 

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