SFI SYSTEM, Diagnostic DTC:P0011

DTC Code DTC Name
P0011 A Camshaft Position - Timing Over-Advanced or System Performance Bank 1

DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0011 A Camshaft Position - Timing Over-Advanced or System Performance Bank 1

Enable Criteria


  • Engine running 30 seconds or more

  • Coolant temperature 60°C (140°F) or higher

Malfunction Criteria


  • VVT error more than -5 degrees for time 2.5 seconds or more

Diagnostic Mask


  • The MIL will be illuminated if the faults are present for 2 consecutive trips

Monitor


  • Continuous

Potential failure modes


  • Static valve timing is incorrect

  • VVT camshaft actuator failure

  • VVT control valve stuck open / closed

  • VVT control valve filter

  • Valve timing

  • Camshaft timing oil control valve assembly (for intake camshaft)

  • Camshaft timing gear assembly

  • Oil control valve filter

  • ECM

 Comes on DTC stored

MONITOR DESCRIPTION

The Variable Valve Timing system (VVT) on the intake camsafts and the exhaust camshafts can vary the timing by approximately 35°on exhaust and 53°on inlet. The camshaft relative position is varied by a system of vanes mounted on the drive end of the camshaft, Each VVT oil control valve modulates a spool valve position in accordance with the drive signal duty cycle, this in turns controls the oil pressure applied to the vanes. A 50% duty cycle applied to the valve will hold the valve current timing by preventing oil flow from the VVT controller housing, a duty cycle less than 50% will retard the valve timing, a duty cycle greater then 50% will advance the valve timing. The ECM regulates this duty cycle based on the feedback signal from the respective camshaft position sensor to optimise the camshaft timing.

WIRING DIAGRAM

Refer to DTC P0076.

Click here

CAUTION / NOTICE / HINT

Tech Tips


  • DTC P0011 may be stored when foreign matter in the engine oil is caught in some parts of the system. The DTC will remain stored even if the system returns to normal after a short time. That foreign matter may then be captured by the oil filter.

  • Read freeze frame data using the GTS. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0011)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Trouble Codes.

    5. Read the DTCs.

      Result
      Result Proceed to
      DTC P0011 is output A
      DTC P0011 and other DTCs are output B

      Tech Tips

      If any DTCs other than P0011 are output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  2. PERFORM ACTIVE TEST USING GTS (CONTROL THE VVT LINEAR)


    1. Connect the GTS to the DLC3.

    2. Start the engine.

    3. Turn the GTS on.

    4. Turn the A/C switch on.

    5. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT Linear (Bank 1).

    6. Check the engine speed while operating the camshaft timing oil control valve assembly (for intake camshaft) using the GTS.

      OK
      GTS Operation Engine Condition
      0% Normal engine speed
      100% Engine idles roughly or stalls

      Tech Tips


      • Refer to "Data List / Active Test" [VVT OCV Duty #1 and VVT Change Angle #1].

        Click here

      • If the result is not acceptable, cool the engine (engine coolant temperature is 50°C (122°F) or less) and perform the Active Test again.

      Result
      Proceed to
      OK
      NG

    NG

    INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE CAMSHAFT) Click here

    OK

  3. CHECK WHETHER DTC OUTPUT RECURS (DTC P0011)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.

    5. Turn the engine switch off and wait for at least 30 seconds.

    6. Turn the engine switch on (IG).

    7. Turn the GTS on.

    8. Start the engine and warm it up.

    9. Enter the following menus: Powertrain / Engine / Trouble Codes.

    10. Read the DTCs.

      Result
      Result Proceed to
      DTCs are not output A
      DTC P0011 is output B

      Tech Tips

      DTC P0011 may be stored when foreign matter in the engine oil is caught in some parts of the system. The DTC will remain stored even if the system returns to normal after a short time. That foreign matter may then be captured by the oil filter.


    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

  4. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE CAMSHAFT)


    1. Inspect the camshaft timing oil control valve assembly (for intake camshaft).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE CAMSHAFT) Click here

    OK

  5. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY


    1. Inspect the camshaft timing gear assembly.

      Click here

      Tech Tips

      Perform "Inspection After Repair" after replacing the camshaft timing gear assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE CAMSHAFT TIMING GEAR ASSEMBLY Click here

    OK

  6. INSPECT OIL CONTROL VALVE FILTER

    B0045ET

    1. Remove the oil control valve filter.

      Click here

    2. Check that the filter is not clogged.

      OK
      Filter is not clogged.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OIL CONTROL VALVE FILTER Click here

    OK

  7. CHECK ENGINE MECHANICAL SYSTEM


    1. Check for mechanical malfunctions that affect the valve timing, such as a jumped tooth or stretching of the timing chain.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

    OK

  8. CHECK WHETHER DTC OUTPUT RECURS (DTC P0011)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.

    5. Turn the engine switch off and wait for at least 30 seconds.

    6. Turn the engine switch on (IG).

    7. Turn the GTS on.

    8. Start the engine and warm it up.

    9. Enter the following menus: Powertrain / Engine / Trouble Codes.

    10. Read the DTCs.

      Result
      Result Proceed to
      DTCs are not output A
      DTC P0011 is output B

      Tech Tips

      DTC P0011 may be stored when foreign matter in the engine oil is caught in some parts of the system. The DTC will remain stored even if the system returns to normal after a short time. That foreign matter may then be captured by the oil filter.


    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

    REPLACE ECM Click here