SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P0012, P0022

DTC Code DTC Name
P0012 Camshaft Position "A" - Timing Over-Retarded (Bank 1)
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
P0012 Camshaft Position "A" - Timing Over-Retarded (Bank 1) With engine warmed up and while driving in urban area (engine speed 4000 rpm or less), valve timing on bank 1 intake side remains in retarded position (1 trip detection logic).

  • Camshaft timing intake gear assembly LH (bank 1)

  • Camshaft Timing Control Motor with EDU Assembly LH (bank 1)

  • ECM

 Comes on DTC stored
P0022 Camshaft Position "A" - Timing Over-Retarded (Bank 2) With engine warmed up and while driving in urban area (engine speed 4000 rpm or less), valve timing on bank 2 intake side remains in retarded position (1 trip detection logic).

  • Camshaft timing intake gear assembly RH (bank 2)

  • Camshaft Timing Control Motor with EDU Assembly RH (bank 2)

  • ECM

 Comes on DTC stored
Symptoms and Fail-safe Operation During Camshaft Control Motor Malfunction
Vehicle Condition Fail-Safe

  • Deterioration of driving performance as result of engine combustion degradation

  • Engine output deficiency

  • Power to camshaft timing control motor with EDU assembly is cut

  • Valve timing of bank that is operating normally is fixed at maximum retard angle

MONITOR DESCRIPTION

These DTCs are output when a valve timing stuck condition is detected. With the engine speed at 4000 rpm or less in the retard angle position, if the valve timing does not vary, and there is a large difference in the target and actual valve timing, it is determined that a malfunction has occurred. If this condition is detected while driving, a DTC is output (1 trip detection logic).

MONITOR STRATEGY

Required Sensors/Components (Main)

Camshaft timing intake gear assembly

Camshaft Timing Control Motor with EDU Assembly
Required Sensors/Components (Related)

Crankshaft position sensor

VVT sensor

Engine coolant temperature sensor
Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN

B000XSIE01

  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG).

  3. Turn the GTS on.

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

  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 [A].

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

  9. 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.

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

  11. Enter the following menus: Powertrain / Engine / Trouble Codes [E].

  12. 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.

  13. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

  14. Input the DTC: P0012 or P0022.

  15. 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].

  16. 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.

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

  18. Enter the following menus: Powertrain / Engine / Trouble Codes [H].

  19. 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.

  20. 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.

    • If the judgment result shows INCOMPLETE or N/A, perform the Confirmation Driving Pattern and check the DTC judgment result again.

CAUTION / NOTICE / HINT

Tech Tips


  • The GTS only:

    By using the Control the VVT-iE Linear (Bank 1) or Control the VVT-iE Linear (Bank 2) Active Test, it can be determined if the VVT-iE system is malfunctioning.


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Start the engine and warm it up.

    5. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT-iE Linear (Bank 1) or Control the VVT-iE Linear (Bank 2).

    6. Monitor VVT Target Angle #1 and VVT Change Angle #1 or VVT Target Angle #2 and VVT Change Angle #2.

    7. Perform the Active Test operation with the engine speed at 1500 rpm.

      OK:
      Active Test Movement Order Difference between "VVT Target Angle" and "VVT Change Angle"
      0 deg → 10 deg → 20 deg → 40 deg → 10 deg → 0 deg → 10 deg → END Within 5 DegFR

  • 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.

  • 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 P0012 AND P0022)


    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.


      Powertrain > Engine > Trouble Codes

    5. Read the DTCs.

      Result
      Result Proceed to
      DTC P0012 and/or P0022 is output A
      DTC P0012 and/or P0022 and other DTCs are output B

      Tech Tips

      If any DTCs other than P0012 or P0022 are output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  2. INSPECT CAMSHAFT TIMING INTAKE GEAR ASSEMBLY (BANK 1 OR BANK 2)

    B000U1XC04
    *1 Camshaft Timing Intake Gear Assembly
    *2 Eccentric Shaft
    *a Spline
    Result
    Proceed to
    OK
    NG

    1. Turn the engine switch off.

    2. Remove the camshaft timing control motor with EDU assembly.

      Click here

    3. Check if the Camshaft timing control motor with EDU assembly eccentric shaft rotates smoothly.

      OK
      Rotates smoothly.

      Tech Tips

      Perform "Inspection After Repair" after repairing or replacing the camshaft timing intake gear assembly or camshaft timing control motor with EDU assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE CAMSHAFT TIMING INTAKE GEAR ASSEMBLY (BANK 1 OR BANK 2) Click here

    OK

  3. REPLACE CAMSHAFT TIMING CONTROL MOTOR WITH EDU ASSEMBLY (BANK 1 OR BANK 2)


    1. Replace the camshaft timing control motor with EDU assembly (bank 1 or bank 2)

      Click here

      Tech Tips

      Perform "Inspection After Repair" after replacing the camshaft timing control motor with EDU assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  4. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

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

      Result
      Proceed to
      NEXT

    NEXT

  5. CHECK WHETHER DTC OUTPUT RECURS (DTC P0012 AND P0022)


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

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


      Powertrain > Engine > Trouble Codes

    3. Read the pending DTCs.

      Result
      Result Proceed to
      DTCs are not output A
      DTC P0012 and/or P0022 is output B

    A

    END

    B

    REPLACE ECM Click here