SFI SYSTEM, Diagnostic DTC:P0011, P0012

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)

DESCRIPTION

Refer to DTC P0010 Click here.

DTC No. DTC Detection Condition Trouble Area
P0011

Valve timing is not adjusted in valve timing advance range

(1 trip detection logic)

  • Valve timing

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

  • Camshaft bearing cap oil hole gasket

  • Camshaft timing gear assembly (for intake camshaft)

  • ECM
P0012

Valve timing is not adjusted in valve timing retard range

(2 trip detection logic)

WIRING DIAGRAM

Refer to DTC P0010 Click here.

INSPECTION PROCEDURE

Tech Tips

Read freeze frame data using the intelligent tester. 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 OR P0012)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

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

    5. Read the DTCs.

      Result
      Result Proceed to
      DTC P0011 or P0012 is output A
      DTC P0011 or P0012 and other DTCs are output B

      Tech Tips

      If any DTCs other than P0011 or P0012 are output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  2. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY)


    1. Connect the intelligent tester to the DLC3.

    2. Start the engine.

    3. Turn the tester on.

    4. Turn the A/C switch on.

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

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

      OK
      Tester Operation Specified Condition
      OFF Normal engine speed
      ON

      Engine idles roughly or stalls

      (soon after camshaft timing oil control valve assembly switched from OFF to ON)

      Tech Tips

      If the result is not acceptable, cool the engine and perform the Active Test again.


      1. Start the engine when the engine coolant temperature is 30°C (86°F) or less.

      2. Turn the tester on.

      3. Turn the A/C switch on.

      4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT System (Bank 1).

      5. Check the engine speed while operating the camshaft timing oil control valve assembly (for intake camshaft) using the tester when the engine coolant temperature is 50°C (122°F) or less.

        OK
        Tester Operation Specified Condition
        OFF Normal engine speed
        ON

        Engine idles roughly or stalls

        (soon after camshaft timing oil control valve assembly switched from OFF to ON)

    NG

    CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPED TOOTH OF TIMING CHAIN) Click here

    OK

  3. CHECK WHETHER DTC OUTPUT RECURS (DTC P0011 OR P0012)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Clear the DTCs Click here.

    5. Start the engine and warm it up.

    6. Switch the ECM from normal mode to check mode using the tester Click here.

    7. Allow the engine to idle for 3 minutes or more.

    8. Drive the vehicle for more than 10 minutes.

    9. Enter the following menus: Powertrain / Engine and ECT / DTC.

    10. Read the DTCs.

      Result
      Result Proceed to
      DTC is not output A
      DTC P0011 or P0012 is output B

    NG

    CHECK WHETHER DTC OUTPUT RECURS (DTC P0011 OR P0012) Click here

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

  4. CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPED TOOTH OF TIMING CHAIN)

    A01194OE01
    Text in Illustration
    *1 Reference Camshaft Layout
    *2 Timing Mark Plate
    *3 Timing Mark
    *4 No. 1 Cylinder at TDC Compression

    1. Remove the cylinder head cover Click here.

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

    3. Check that the timing mark of the camshaft timing sprocket is in the position shown in the illustration.

      Tech Tips

      If not, turn the crankshaft damper 1 revolution (360°) to align the timing mark and sprocket as above.

      OK
      Alignment marks on camshaft timing gears are aligned as shown in the illustration

    4. Reinstall the cylinder head cover Click here.


    NG

    ADJUST VALVE TIMING Click here

    OK

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


    1. A011BL9E03

      Remove the camshaft timing oil control valve assembly (for intake camshaft) Click here.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 20°C (68°F) 6.9 to 7.9 Ω
      Text in Illustration
      *1

      Component without harness connected

      (Camshaft Timing Oil Control Valve Assembly (for Intake Camshaft))
    3. A0118I4E02

      Connect the positive battery terminal to terminal 1 and connect the negative battery terminal to terminal 2. Check valve operation.

      OK
      Valve moves quickly.

    4. Reinstall the camshaft timing oil control valve assembly (for intake camshaft) Click here.


    NG

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

    OK

  6. REPLACE CAMSHAFT BEARING CAP OIL HOLE GASKET (OCV FILTER)


    1. Replace the camshaft bearing cap oil hole gasket Click here.


    NEXT

  7. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY (FOR INTAKE CAMSHAFT)


    1. Inspect the camshaft timing gear assembly (for intake camshaft) Click here.


    NG

    REPLACE CAMSHAFT TIMING GEAR ASSEMBLY (FOR INTAKE CAMSHAFT) Click here

    OK

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


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Clear the DTCs Click here.

    5. Start the engine and warm it up.

    6. Switch the ECM from normal mode to check mode using the tester Click here.

    7. Allow the engine to idle for 3 minutes or more.

    8. Drive the vehicle for more than 10 minutes.

    9. Enter the following menu: Powertrain / Engine and ECT / DTC.

    10. Read the DTCs.

      Result
      Result Proceed to
      DTC is not output A
      DTC P0011 or P0012 is output B

      Tech Tips

      DTC P0011 or P0012 may be stored when foreign objects in the engine oil are caught in some parts of the system. The DTC will remain stored even if the system returns to normal after a short time. These foreign objects may then be captured by the oil filter.


    B

    REPLACE ECM Click here

    A

    END