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

Advanced cam timing:

With engine warmed up and engine speed of between 500 rpm and 4000 rpm, all conditions (1), (2) and (3) are met

(2 trip detection logic):

(1) Difference between target and actual exhaust valve timings is more than 5°CA (Crankshaft Angle) for 1 second

(2) Current exhaust valve timing is fixed (timing changes less than 5°CA in 5 seconds)

(3) Variations in VVT controller timing are more than 19°CA of maximum delayed timing (advanced)

  • Valve timing

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

  • Oil control valve filter (bank 1, 2)

  • Camshaft timing exhaust gear assembly

  • ECM

P0015

P0025

Retarded cam timing:

With engine warmed up and engine speed of between 500 rpm and 4000 rpm, all conditions (1), (2) and (3) are met

(1 trip detection logic):

(1) Difference between target and actual exhaust valve timings is more than 5°CA (Crankshaft Angle) for 1 second

(2) Current exhaust valve timing is fixed (timing changes less than 5°CA in 5 seconds)

(3) Variations in VVT controller timing are more than 19°CA or less of maximum delayed timing (retarded)

  • Valve timing

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

  • Oil control valve filter (bank 1, 2)

  • Camshaft timing exhaust gear assembly

  • ECM

WIRING DIAGRAM

Refer to DTC P0013 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 P0014 P0015
Bank 2 P0024 P0025

  • If DTC P0014 or P0015 is displayed, check the exhaust camshaft circuit for the bank 1 VVT system.

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

  • If DTC P0024 or P0025 is displayed, check the exhaust camshaft circuit for the bank 2 VVT system.

  • 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 engine switch on (IG) and turn the tester on.

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

    4. Read the DTCs.

      Result
      Result Proceed to
      DTC P0014, P0015, P0024 or P0025 is output A
      DTC P0014, P0015, P0024 or P0025 and other DTCs are output 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 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 Exhaust Linear (Bank 1) or Control the VVT Exhaust Linear (Bank 2).

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

      OK
      Tester Operation Specified Condition
      0% Normal engine speed
      100% Engine idles roughly or stalls

    NG

    CHECK VALVE TIMING (CHECK FOR LOOSE OR JUMPED 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 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 P0014, P0015, P0024 or P0025 is output B

      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 remain stored even if the system returns to normal after a short time. These foreign objects may then be captured by the oil, 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 matchmarks 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 EXHAUST 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 (for exhaust camshaft).


    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 EXHAUST GEAR ASSEMBLY


    1. Replace the camshaft timing exhaust 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 P0014, P0015, P0024 or P0025 is output B

    B

    REPLACE ECM Click here

    A

    END