SFI SYSTEM, 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. DTC Detection Condition Trouble Area
P0012

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 for 5 minutes or more

(2 trip detection logic)

  • Camshaft timing gear assembly (bank 1)

  • Camshaft timing control with EDU motor assembly (bank 1)
P0022

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 for 5 minutes or more

(2 trip detection logic)

  • Camshaft timing gear assembly (bank 2)

  • Camshaft timing control with EDU motor assembly (bank 2)

MONITOR DESCRIPTION

This DTC is 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 (2 trip detection logic).

After the engine is warmed up, a DTC is output if the following conditions occur: 1) the vehicle is driven in an urban area for 5 minutes, and then the engine switch is turned off; and 2) the engine is started and the vehicle is driven in an urban area for 5 minutes.

INSPECTION PROCEDURE

Tech Tips


  • Intelligent tester only:

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


    1. Connect the intelligent tester to the DLC3.

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

    3. Start the engine and warm it up.

    4. Enter the following menus: Powertrain / Engine / Active Test / Control the MD VVT-iE Linear (Bank 1) or Control the VVT-iE Linear (Bank 2) / VVT-iE Aim Angle (Bank 1) and VVT Change Angle (Bank 1) or VVT-iE Aim Angle (Bank 2) and VVT Change Angle (Bank 2).

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

      OK
      Active Test Movement Order Difference between "VVT-iE Aim Angle" and "VVT Change Angle"
      0 deg → 10 deg → 20 deg → 40 deg → 10 deg → 0 deg → 10 deg → END Within 5°FR

  • When viewed from the rear of the engine assembly, Bank 1 is on the left side and Bank 2 is on the right side.

  • Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. 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 DTC OUTPUT (IN ADDITION TO DTC P0012 OR P0022)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the tester ON.

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

    5. Read the DTCs.

      Result
      Result Proceed to
      DTC P0012 or P0022 is output A
      DTC P0012 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 GEAR ASSEMBLY (BANK 1 AND/OR BANK 2)


    1. Remove the camshaft timing control motor Click here.

    2. A0160R8

      Check if the camshaft timing gear assembly's eccentric shaft rotates smoothly.

      OK
      Rotates smoothly

    3. Reinstall the camshaft timing control motor.


    NG

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

    OK

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


    1. Replace the camshaft timing control motor for bank 1 and/or bank 2 Click here.


    NEXT

  4. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the tester ON.

    4. Clear the DTC Click here.

    5. Start the engine.

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

    7. Drive the vehicle in an urban area for approximately 5 minutes.

    8. Enter the following menus: Powertrain / Engine / DTC.

    9. Read the DTC.

      Result
      Result Proceed to
      DTC is not output A
      Other DTCs output B

    B

    GO TO DTC CHART Click here

    A

    END