SFI SYSTEM, Diagnostic DTC:P0014, P0015, P0024, P0025

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)

DESCRIPTION

Refer to DTC P0013 Click here.

DTC No. DTC Detection Condition Trouble Area

P0014

P0024

Condition (a) or (b) continues after engine is warmed up and engine speed is at 500 to 4000 rpm (Problem of the advanced oil control valve for exhaust camshaft) (2 trip detection logic):

(a) Valve timing does not change from current valve timing

(b) Current valve timing is fixed

  • Valve timing

  • Oil control valve for exhaust camshaft

  • Oil control valve filter

  • Exhaust camshaft timing gear assembly

  • ECM

P0015

P0025

Condition (a) or (b) continues after engine is warmed up and engine speed is at 500 to 4000 rpm (Problem of the retarded oil control valve) (2 trip detection logic):

(a) Valve timing does not change from current valve timing

(b) Current valve timing is fixed

  • Valve timing

  • Oil control valve for exhaust camshaft

  • Oil control valve filter

  • Exhaust camshaft timing gear assembly

  • ECM

WIRING DIAGRAM

Refer to DTC P0013 Click here.

INSPECTION PROCEDURE

Abnormal bank

Advanced timing over

(Valve timing is out of specified range)

Retarded timing over

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

Tech Tips


  • If DTC P0014 or P0015 is displayed, check the bank 1 variable valve timing system circuit.

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

  • If DTC P0024 or P0025 is displayed, check the bank 2 variable valve timing system circuit.

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

  • Read freeze frame data using the 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 P0014, P0015, P0024 OR P0025)


    1. Connect the intelligent tester to the DLC3.

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

    3. Select the following menu items: Powertrain / Engine / DTC.

    4. Read the DTCs.

      Result
      Display (DTC Output) Proceed to
      P0014, P0015, P0024 or P0025 A
      P0014, P0015, P0024 or P0025 and other DTCs B

      Tech Tips

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


    B

    GO TO DTC CHART Click here

    A

  2. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OPERATE OIL CONTROL VALVE)


    1. Connect the intelligent tester to the DLC3.

    2. Start the engine and turn the tester on.

    3. Warm up the engine.

    4. Select the following menu items on the tester: Powertrain / Engine and ECT / Active Test / Control the VVT Exhaust Linear (Bank 1) or Control the VVT Exhaust Linear (Bank 2).

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

      OK
      Tester Operation Specified Condition
      -128% (Oil control valve OFF) Normal engine idle speed
      127% (Oil control valve ON) Engine idles roughly or stalls (soon after oil control valve switched from OFF to ON)

    NG

    CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMP TEETH ON TIMING CHAIN) Click here

    OK

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


    1. Connect the intelligent tester to the DLC3.

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

    3. Clear the DTCs Click here.

    4. Start the engine and warm it up.

    5. Select the check mode using the tester Click here.

    6. Drive the vehicle for more than 10 minutes.

    7. Read the DTCs using the tester.

      OK
      No DTC output.

    NG

    CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMP TEETH ON TIMING CHAIN) Click here

    OK

    END

  4. CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMP TEETH ON TIMING CHAIN)


    1. A017F6CE02

      Remove the cylinder head covers RH and LH.

    2. Turn the crankshaft to align the matchmarks of the crankshaft.

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

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

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

      OK
      The matchmarks 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 EXHAUST CAMSHAFT)


    1. A017DB8E03

      Remove the exhaust camshaft oil control valve.

    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. A017C6OE03

      Apply the positive battery voltage to terminal 1 and the negative battery voltage to terminal 2. Check the valve operation.

      OK
      Valve moves quickly.

    4. Reinstall the oil control valve.


    NG

    REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY Click here

    OK

  6. CHECK OIL PIPE AND OIL CONTROL VALVE FILTER


    1. A017DKFE01

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

    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 PIPE OR OIL CONTROL VALVE FILTER

    OK

  7. REPLACE CAMSHAFT TIMING GEAR ASSEMBLY


    NEXT

  8. CHECK WHETHER DTC OUTPUT RECURS


    1. Connect the intelligent tester to the DLC3.

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

    3. Clear the DTCs Click here.

    4. Start the engine and warm it up.

    5. Select the check mode using the tester Click here.

    6. Drive the vehicle for more than 10 minutes.

    7. Confirm that no DTC is set using the tester.

      OK
      No DTC output.

      Tech Tips

      DTC P0014, P0015, P0024 or P0025 is output when foreign objects in engine oil are caught in some parts of the system. These codes will stay registered even if the system returns to normal after a short time. These foreign objects are then captured by the oil filter, thus eliminating the source of the problem.


    NG

    REPLACE ECM Click here

    OK

    END