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SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P0014, P0015, P0024, P0025

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DTC Code DTC Name
P0014 Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 1)
P0015 Camshaft Position "B" - Timing Over-Retarded (Bank 1)
P0024 Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 2)
P0025 Camshaft Position "B" - Timing Over-Retarded (Bank 2)
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DESCRIPTION

Refer to DTC P0013.

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DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0014 Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 1) Exhaust valve timing is stuck at a certain value when in the advance range (2 trip detection logic).

  • Valve timing

  • Camshaft timing oil control valve assembly (bank 1)

  • Oil control valve filter

  • Camshaft timing exhaust gear assembly (bank 1)

  • ECM

 Comes on DTC stored
P0015 Camshaft Position "B" - Timing Over-Retarded (Bank 1) Exhaust valve timing is stuck at a certain value when in the retard range (1 trip detection logic).

  • Valve timing

  • Camshaft timing oil control valve assembly (bank 1)

  • Oil control valve filter

  • Camshaft timing exhaust gear assembly (bank 1)

  • ECM

 Comes on DTC stored
P0024 Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 2) Exhaust valve timing is stuck at a certain value when in the advance range (2 trip detection logic).

  • Valve timing

  • Camshaft timing oil control valve assembly (bank 2)

  • Oil control valve filter

  • Camshaft timing exhaust gear assembly (bank 2)

  • ECM

 Comes on DTC stored
P0025 Camshaft Position "B" - Timing Over-Retarded (Bank 2) Exhaust valve timing is stuck at a certain value when in the retard range (1 trip detection logic).

  • Valve timing

  • Camshaft timing oil control valve assembly (bank 2)

  • Oil control valve filter

  • Camshaft timing exhaust gear assembly (bank 2)

  • ECM

 Comes on DTC stored
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MONITOR DESCRIPTION

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

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


DTCs P0014 and P0024 (Advanced Camshaft Timing) are subject to 2 trip detection logic.

DTCs P0015 and P0025 (Retarded Camshaft Timing) are subject to 1 trip detection logic.

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

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MONITOR STRATEGY

Required Sensors/Components (Main)

Camshaft timing oil control valve assembly

Camshaft timing exhaust gear assembly
Required Sensors/Components (Related)

Crankshaft position sensor

VVT sensor

Engine coolant temperature sensor
Frequency of Operation Continuous
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CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG) and turn the GTS on.

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

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

  5. Turn the engine switch on (IG) 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 / Trouble Codes [E].

  10. Read the pending DTCs.

    Tip:

    • 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 / Utility / All Readiness.

  12. Input the DTC: P0014, P0015, P0024 or P0025.

  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
    Tip:

    • 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.

    Tip:

    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 / Trouble Codes [H].

  17. Read the pending DTCs.

    Tip:

    • 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.

    Tip:

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

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

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WIRING DIAGRAM

Refer to DTC P0013.

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CAUTION / NOTICE / HINT

Tip:
Abnormal Bank

Timing Over Advanced

(Valve timing is out of specified range)

Timing Over Retarded

(Valve timing is out of specified range)
Bank 1 P0014 P0015
Bank 2 P0024 P0025

  • If DTC P0014 or P0015 is output, check the VVT system (for exhaust camshaft of bank 1) circuit.

  • If DTC P0024 or P0025 is output, check the VVT system (for exhaust 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 P0014, P0015, P0024 or P0025 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. This 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.

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PROCEDURE


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    CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0014, P0015, P0024 OR P0025)


    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.


      1. Powertrain > Engine > Trouble Codes


      Result
      Result Proceed to
      DTC P0014, P0015, P0024 or P0025 is output A
      DTC P0014, P0015, P0024 or P0025 and other DTCs are output B
      Tip:

      If any DTCs other than P0014, P0015, P0024 or P0025 are output, troubleshoot those DTCs first.


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    PERFORM ACTIVE TEST USING GTS (CONTROL THE VVT EXHAUST 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 Exhaust Linear (Bank 1) or Control the VVT Exhaust Linear (Bank 2).


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





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




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

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

      Refer to "Data List / Active Test" [VVT Ex OCV Duty #1, VVT Ex Chg Angle #1, VVT Ex OCV Duty #2 and VVT Ex Chg Angle #2].

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      Result
      Proceed to
      OK
      NG

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    CHECK WHETHER DTC OUTPUT RECURS (DTC P0014, P0015, P0024 OR P0025)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      1. Powertrain > Engine > Clear 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. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.

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

    11. Read the pending DTCs.


      1. Powertrain > Engine > Trouble Codes


      Result
      Result Proceed to
      DTCs are not output A
      DTC P0014, P0015, P0024 or P0025 is output B
      Tip:

      DTC P0014, P0015, P0024 or P0025 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. This foreign matter may then be captured by the oil filter.


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    INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY


    1. Inspect the camshaft timing oil control valve assembly.

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      Result
      Proceed to
      OK
      NG

  5. *a Timing Mark *b Approximately 68° *c Approximately 16° *d Approximately 32° *e Approximately 50° - -
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    CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPED TEETH ON TIMING CHAIN)


    1. Remove the cylinder head covers.

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

    3. Check that the timing marks of the camshaft timing gears and camshaft timing exhaust gears are at the positions shown in the illustration.

      OK
      The timing marks on the camshaft timing gears are aligned as shown in the illustration.
      Tip:

      • 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.

      • When checking the valve timing, make sure the camshaft timing gear assemblies are set to the most retarded position and the camshaft timing exhaust gear assemblies are set to the most advanced position. When the VVT system is normal and the engine is stopped, the camshaft timing gear assemblies stop at the center of their operation range and the camshaft timing exhaust gear assemblies stop at the most advanced position.

      Result
      Proceed to
      OK
      NG

  6. *A Bank 1 *B Bank 2 *1 Oil Control Valve Filter LH *2 Oil Control Valve Filter RH *3 Cylinder Head Cover Spacer LH *4 Cylinder Head Cover Spacer RH *a Gasket - -
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    INSPECT OIL CONTROL VALVE FILTER


    1. Remove the cylinder head cover sub-assembly.

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

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    3. Inspect the oil control valve filter RH or LH.

      OK
      Filter is not clogged.
      Result
      Proceed to
      OK
      NG

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    REPLACE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY


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

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      Tip:

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

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      Result
      Proceed to
      NEXT

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    CHECK WHETHER DTC OUTPUT RECURS (DTC P0014, P0015, P0024 OR P0025)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.

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      1. Powertrain > Engine > Clear 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. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.

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

    11. Read the pending DTCs.


      1. Powertrain > Engine > Trouble Codes


      Result
      Result Proceed to
      DTCs are not output A
      DTC P0014, P0015, P0024 or P0025 is output B

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    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

    • OKClick here
    • NG

      REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

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    CHECK WHETHER DTC OUTPUT RECURS (DTC P0014, P0015, P0024 OR P0025)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.

      Click here


      1. Powertrain > Engine > Clear 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. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.

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

    11. Read the pending DTCs.


      1. Powertrain > Engine > Trouble Codes


      Result
      Result Proceed to
      DTCs are not output A
      DTC P0014, P0015, P0024 or P0025 is output B