SFI SYSTEM, Diagnostic DTC:P0011, P0012, P0021, P0022

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)
P0021 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 2)
P0022 Camshaft Position "A" - Timing Over-Retarded (Bank 2)

DESCRIPTION

Refer to DTC P0010 Click here.

DTC No. DTC Detection Condition Trouble Area

P0011

P0021

 Intake valve timing is stuck at a certain value when in the advance range (1 trip detection logic).

  • Valve timing

  • Camshaft timing oil control valve assembly for intake camshaft (bank 1, 2)

  • Oil control valve filter (bank 1, 2)

  • Camshaft timing gear assembly

  • ECM

P0012

P0022

 Intake valve timing is stuck at a certain value when in the retard range (2 trip detection logic).

  • Valve timing

  • Camshaft timing oil control valve assembly for intake camshaft (bank 1, 2)

  • Oil control valve filter (bank 1, 2)

  • Camshaft timing gear assembly

  • ECM

WIRING DIAGRAM

Refer to DTC P0010 Click here.

INSPECTION PROCEDURE

Tech Tips

Abnormal Bank

Timing Over Advanced

(Valve timing is out of specified range)

Timing Over Retarded

(Valve timing is out of specified range)
Bank 1 P0011 P0012
Bank 2 P0021 P0022

  • If DTC P0011 or P0012 is displayed, check the intake camshaft circuit for the right bank VVT system (bank 1).

  • Bank 1 refers to the bank that includes cylinder No. 1.

  • If DTC P0021 or P0022 is displayed, check the intake camshaft circuit for the left bank VVT system (bank 2).

  • Bank 2 refers to the bank that does not include cylinder No. 1.

  • Read freeze frame data using an 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 be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

PROCEDURE


  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0011, P0012, P0021 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 P0011, P0012, P0021 or P0022 is output A
      DTC P0011, P0012, P0021 or P0022 and other DTCs are output B

      Tech Tips

      If any DTCs other than P0011, P0012, P0021 or P0022 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 and turn the tester on.

    3. Warm up the engine.

    4. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT System (Bank 1) or Control the VVT System (Bank 2).

    5. Check the engine speed while operating the camshaft timing oil control valve assembly using the tester.

      OK
      Tester Operation Specified Condition
      Camshaft timing oil control valve assembly OFF Normal engine speed
      Camshaft timing oil control valve assembly 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 OR JUMPED TEETH ON TIMING CHAIN) Click here

    OK

  3. CHECK WHETHER DTC OUTPUT RECURS (DTC P0011, P0012, P0021 OR P0022)


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

    6. Drive the vehicle for more than 10 minutes.

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

    8. Read the DTCs.

      Result
      Result Proceed to
      DTC is not output A
      DTC P0011, P0012, P0021 or P0022 is output B

      Tech Tips

      DTC P0011, P0012, P0021 or P0022 is output when foreign objects in engine oil are caught in some parts of the system. These codes 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, thus eliminating the source of the problem.


    B

    CHECK VALVE TIMING (CHECK FOR LOOSE OR JUMPED TEETH ON TIMING CHAIN) Click here

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

  4. CHECK VALVE TIMING (CHECK FOR LOOSE OR JUMPED TEETH ON TIMING CHAIN)


    1. A01CCYYE02

      Remove the cylinder head covers RH and LH.

    2. Turn the crankshaft to align the timing marks of the crankshaft.

    3. Align the notch of the crankshaft pulley to the "0" position.

    4. Check if the timing marks of the camshaft pulley and camshaft bearing cap align.

    5. Turn the crankshaft clockwise 360° if the timing marks do not align. Check if they align once again.

      OK
      The timing marks of the camshaft pulley and the camshaft bearing cap align when the notch of the crankshaft pulley is in the "0" position.

    NG

    ADJUST VALVE TIMING Click here

    OK

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


    1. A01CD1KE03

      Remove the camshaft timing oil control valve assembly.

    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
    3. A01CG4KE05

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

      OK
      Valve moves quickly.

    4. Reinstall the camshaft timing oil control valve assembly.


    NG

    REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY Click here

    OK

  6. INSPECT OIL CONTROL VALVE FILTER AND OIL PIPE


    1. A01CG5OE02

      Remove the oil pipe No. 1 or No. 2.

    2. Remove the oil control valve filter.

    3. Check that the filter and pipe are not clogged.

      OK
      The filter and pipe are not clogged.

    NG

    REPLACE OIL CONTROL VALVE FILTER OR OIL PIPE

    OK

  7. REPLACE CAMSHAFT TIMING GEAR ASSEMBLY


    1. Replace the camshaft timing gear assembly Click here.


    NEXT

  8. CHECK WHETHER DTC OUTPUT RECURS


    1. Connect the intelligent tester to the DLC3.

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

    3. Clear the DTCs Click here.

    4. Start the engine and warm it up.

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

    6. Drive the vehicle for more than 10 minutes.

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

    8. Read the DTCs.

      Result
      Result Proceed to
      DTC is not output A
      DTC P0011, P0012, P0021 or P0022 is output B

    B

    REPLACE ECM Click here

    A

    END