СИСТЕМА SFI, Diagnostic DTC:P0011, P0012, P0021, P0022

DTC Code DTC Name
P0011 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1)
P0012 Camshaft Position "A" - Timing Over-Retarded (Bank 1)
P0021 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 2)
P0022 Camshaft Position "A" - Timing Over-Retarded (Bank 2)

DESCRIPTION

Refer to DTC P0010.

Click here

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0011 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1) Intake valve timing is stuck at a certain value when in the advance range (1 trip detection logic).

  • Valve timing

  • Camshaft timing oil control valve assembly (for intake camshaft of bank 1)

  • Oil control valve filter

  • Oil pipe

  • Camshaft timing gear assembly (bank 1)

  • ECM

 Comes on DTC stored
P0012 Camshaft Position "A" - Timing Over-Retarded (Bank 1) Intake valve timing is stuck at a certain value when in the retard range (2 trip detection logic).

  • Valve timing

  • Camshaft timing oil control valve assembly (for intake camshaft of bank 1)

  • Oil control valve filter

  • Oil pipe

  • Camshaft timing gear assembly (bank 1)

  • ECM

 Comes on DTC stored
P0021 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 2) Intake valve timing is stuck at a certain value when in the advance range (1 trip detection logic).

  • Valve timing

  • Camshaft timing oil control valve assembly (for intake camshaft of bank 2)

  • Oil control valve filter

  • Oil pipe

  • Camshaft timing gear assembly (bank 2)

  • ECM

 Comes on DTC stored
P0022 Camshaft Position "A" - Timing Over-Retarded (Bank 2) Intake valve timing is stuck at a certain value when in the retard range (2 trip detection logic).

  • Valve timing

  • Camshaft timing oil control valve assembly (for intake camshaft of bank 2)

  • Oil control valve filter

  • Oil pipe

  • Camshaft timing gear assembly (bank 2)

  • ECM

 Comes on DTC stored

MONITOR DESCRIPTION

The ECM optimizes the intake valve timing using the Variable Valve Timing (VVT) system to control the intake camshaft. The VVT system includes the ECM, camshaft timing oil control valve assembly (for intake camshaft) and VVT controller (camshaft timing gear assembly). The ECM sends a target duty-cycle control signal to the camshaft timing oil control valve assembly (for intake camshaft). This control signal regulates the oil pressure supplied to the VVT controller. The VVT controller can advance or retard the intake camshaft.

If the difference between the target and actual intake valve timing is large, and changes in the actual intake valve timing are small, the ECM interprets this as the VVT controller stuck malfunction and stores a DTC.


DTCs P0011 and P0021 (Advanced Camshaft Timing) are subject to 1 trip detection logic.

DTCs P0012 and P0022 (Retarded Camshaft Timing) are subject to 2 trip detection logic.

These DTCs indicate that the VVT controller cannot operate properly due to a camshaft timing oil control valve assembly (for intake camshaft) malfunction or the presence of foreign matter in the camshaft timing oil control valve assembly (for intake camshaft).

MONITOR STRATEGY

Required Sensors/Components (Main)

Camshaft timing oil control valve assembly (for intake camshaft)

Camshaft timing gear assembly
Required Sensors/Components (Related)

Crankshaft position sensor

VVT sensor

Engine coolant temperature sensor
Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN

B0026RHE42

  1. Connect the GTS to the DLC3.

  2. Turn the ignition switch to ON and turn the GTS on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  4. Turn the ignition switch off and wait for at least 30 seconds.

  5. Turn the ignition switch to ON and turn the GTS on [A].

  6. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].

  7. Drive the vehicle at approximately 60 km/h (37 mph) for 10 minutes or more [C].

    CAUTION:

    When performing the confirmation driving pattern, obey all speed limits and traffic laws.

  8. Idle the engine for 3 minutes or more [D].

  9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [E].

  10. Read the pending DTCs.

    Tech Tips


    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

  12. Input the DTC: P0011, P0012, P0021 or P0022.

  13. Check the DTC judgment result.

    GTS Display Description
    NORMAL

    • DTC judgment completed

    • System normal
    ABNORMAL

    • DTC judgment completed

    • System abnormal
    INCOMPLETE

    • DTC judgment not completed

    • Perform driving pattern after confirming DTC enabling conditions
    N/A

    • Unable to perform DTC judgment

    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform steps [F] through [H].

  14. Repeat the pattern of accelerating the vehicle from rest to approximately 60 km/h (37 mph) and then decelerating the vehicle 10 to 15 times [F].

    CAUTION:

    When performing the confirmation driving pattern, obey all speed limits and traffic laws.

    Tech Tips

    Depress the accelerator pedal by a large amount.

  15. Idle the engine for 3 minutes or more [G].

  16. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [H].

  17. Read the pending DTCs.

    Tech Tips


    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  18. Check the DTC judgment result again.

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

WIRING DIAGRAM

Refer to DTC P0010.

Click here

CAUTION / NOTICE / HINT

Tech Tips

Abnormal Bank

Timing Over Advanced

(Valve timing is out of specified range)

Timing Over Retarded

(Valve timing is out of specified range)
Bank 1 P0011 P0012
Bank 2 P0021 P0022

  • If DTC P0011 or P0012 is output, check the VVT system (for intake camshaft of bank 1) circuit.

  • If DTC P0021 or P0022 is output, check the VVT system (for intake camshaft of bank 2) circuit.

  • Bank 1 refers to the bank that includes the No. 1 cylinder*.

    *: The No. 1 cylinder is the cylinder which is farthest from the transmission.

  • Bank 2 refers to the bank that does not include the No. 1 cylinder.

  • DTC P0011, P0012, P0021 or P0022 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, P0012, P0021 OR P0022)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

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

    5. Read the DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTC P0011, P0012, P0021 or P0022 is output A
      DTC P0011, P0012, P0021 or P0022 and other DTCs are output B

      Tech Tips

      If any DTCs other than P0011, P0012, P0021 or P0022 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 and ECT / Active Test / Control the VVT Linear (Bank 1) or Control the VVT Linear (Bank 2).


      Powertrain > Engine > Active Test
      Tester Display
      Control the VVT Linear (Bank1)

      Powertrain > Engine > Active Test
      Tester Display
      Control the VVT Linear (Bank2)

    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, VVT Change Angle #1, VVT OCV Duty #2, and VVT Change Angle #2].

      Click here

      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, P0012, P0021 OR P0022)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

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

    6. Turn the ignition switch to ON.

    7. Turn the GTS on.

    8. Start the engine and warm it up.

    9. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

    10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.

    11. Read the pending DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTC P0011, P0012, P0021 or P0022 is output B

      Tech Tips

      DTC P0011, P0012, P0021 or P0022 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

    GO TO STEP 5 Click here

  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. CHECK VALVE TIMING (CHECK FOR LOOSE TIMING CHAIN AND JUMPED TEETH)


    1. Remove the cylinder head cover sub-assembly and cylinder head cover sub-assembly LH.

      Click here

    2. B0025ZB

      Turn the crankshaft pulley, and align its groove with the "0" timing mark of the timing chain cover.

    3. B00260UC03
      *A Bank 1
      *B Bank 2
      *a Timing Mark

      Check that the timing marks of the camshaft timing gear assemblies and camshaft timing sprockets are aligned with the timing marks of the bearing cap as shown in the illustration.

      Tech Tips

      If the timing marks are not as shown, turn the crankshaft one revolution clockwise.

      OK
      The timing marks on the camshaft timing gear assemblies and camshaft timing sprockets are aligned as shown in the illustration.

      Tech Tips

      If the result is not as specified, check for mechanical malfunctions that may have affected the valve timing, such as a jumped tooth or stretching of the timing chain.

      Result
      Proceed to
      OK
      NG

    NG

    CHECK ENGINE MECHANICAL SYSTEM Click here

    OK

  6. INSPECT OIL CONTROL VALVE FILTER


    1. Remove the oil control valve filter RH or oil control valve filter LH.

    2. Check that the oil control valve filter is not clogged.

      OK
      The oil control valve filter is not clogged.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OIL CONTROL VALVE FILTER Click here

    OK

  7. REPLACE CAMSHAFT TIMING GEAR ASSEMBLY


    1. Replace the camshaft timing gear assembly (bank 1 or bank 2).

      Click here

      Tech Tips

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

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  8. CHECK WHETHER DTC OUTPUT RECURS (DTC P0011, P0012, P0021 OR P0022)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

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

    6. Turn the ignition switch to ON.

    7. Turn the GTS on.

    8. Start the engine and warm it up.

    9. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

    10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.

    11. Read the pending DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTC P0011, P0012, P0021 or P0022 is output B

    A

    END

    B

    REPLACE ECM Click here

  9. 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.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

    OK

  10. CHECK WHETHER DTC OUTPUT RECURS (DTC P0011, P0012, P0021 OR P0022)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

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

    6. Turn the ignition switch to ON.

    7. Turn the GTS on.

    8. Start the engine and warm it up.

    9. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

    10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.

    11. Read the pending DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTC P0011, P0012, P0021 or P0022 is output B

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

    REPLACE ECM Click here