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 more), 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 motor (bank 1)
P0022

With engine warmed up and while driving in urban area (engine speed 4000 rpm or more), 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 motor (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 occurs: 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. Clear the DTC Click here.

  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) / All Data / VVT-iE Aim Angle #1 and VVT-iE Change Angle #1 or VVT-iE Aim Angle #2 and VVT-iE Change Angle #2.

  6. 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 4 DegFR

  • 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 DTCS 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 DTCs.

      Result
      Display (DTC Output) Proceed to
      P0012 or P0022 A
      P0012 or P0022 and other DTCs B

    NG

    GO TO DTC CHART Click here

    OK

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


    1. Turn the engine switch off.

    2. Remove the camshaft timing control motor (bank 1 or bank 2) Click here.

    3. A01GNEU

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

      OK
      Rotates smoothly

    NG

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

    OK

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


    1. Replace camshaft timing control motor Click here.


    NEXT

  4. CHECK WHETHER DTC OUTPUT RECURS


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the tester ON.

    4. Clear DTCs Click here.

    5. Start the engine.

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

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

    8. Read the DTCs.

      Result
      Display (DTC Output) Proceed to
      No output A
      Other DTCs B

    B

    GO TO DTC CHART Click here

    A

    END