Dtc P0014 Camshaft Position B - Timing Over-Advanced Or System Performance (Bank 1)

Engine. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
2Gr-Fe Engine Control System. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0014, P0015, P0024 OR P0025)

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OPERATE OCV)

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

CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPED TEETH ON TIMING CHAIN)

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT)

INSPECT OIL CONTROL VALVE FILTER AND PIPE

REPLACE EXHAUST CAMSHAFT

CHECK WHETHER DTC OUTPUT RECURS

DTC P0014 Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 1)

DTC P0015 Camshaft Position "B" - Timing Over-Retarded (Bank 1)

DTC P0024 Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 2)

DTC P0025 Camshaft Position "B" - Timing Over-Retarded (Bank 2)


DESCRIPTION

HINT:
If DTC P0014, P0015, P0024 or P0025 is present, check the VVT (Variable Valve Timing) system.
The Variable Valve Timing (VVT) system includes the ECM, OCV and VVT controller. The ECM sends a target duty-cycle control signal to the OCV. This control signal regulates the oil pressure supplied to the VVT controller. Camshaft timing control is performed according to engine operating conditions such as the intake air volume, throttle valve position and engine coolant temperature. The ECM controls the OCV, based on the signals transmitted from several sensors. The VVT controller regulates the exhaust camshaft angle using oil pressure through the OCV. As a result, the relative positions of the camshaft and crankshaft are optimized, the engine torque and fuel economy improve, and the exhaust emissions decrease under overall driving conditions. The ECM detects the actual exhaust valve timing using signals from the camshaft and crankshaft position sensors, and performs feedback control. This is how the target intake valve timing is verified by the ECM.

Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.2Gr-Fe Engine Control System.Sfi System. Dtc P0014 Camshaft Position B - Timing Over-Advanced Or System Performance (Bank 1)


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 (a), (b) and (c) are met
(2 trip detection logic):
(a) Difference between target and actual exhaust valve timing is more than 5°CA (Crankshaft Angle) for 4.5 seconds
(b) Current exhaust valve timing is fixed (timing changes less than 5°CA in 5 seconds)
(c) Variations in VVT controller timing are more than 19°CA of maximum delayed timing (advanced)
  1. Valve timing
  2. Oil control valve (OCV) for exhaust camshaft (bank 1, 2)
  3. OCV filter (bank 1, 2)
  4. Exhaust camshaft
  5. ECM
P0015
P0025
Retarded cam timing:
With engine warmed up and engine speed of between 500 rpm and 4000 rpm, all conditions (a), (b) and (c) are met
(1 trip detection logic):
(a) Difference between target and actual exhaust valve timing is more than 5°CA (Crankshaft Angle) for 4.5 seconds
(b) Current exhaust valve timing is fixed (timing changes less than 5°CA in 5 seconds)
(c) Variations in VVT controller timing are more than 19°CA or less of maximum delayed timing (retarded)
  1. Valve timing
  2. OCV for exhaust camshaft (bank 1, 2)
  3. OCV filter (bank 1, 2)
  4. Exhaust camshaft
  5. ECM

WIRING DIAGRAM

Refer to DTC P0013 (RAV4_ACA30 RM000000XH704LX_07.html).

INSPECTION PROCEDURE


HINT:

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
  1. If DTC P0014 or P0015 is displayed, check the exhaust camshaft circuit for the bank 1 VVT system.
  2. Bank 1 refers to the bank that includes cylinder No. 1.
  3. If DTC P0024 or P0025 is displayed, check the exhaust camshaft circuit for the bank 2 VVT system.
  4. Bank 2 refers to the bank that does not include cylinder No. 1.
  5. 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 (RAV4_ACA30 RM000000PDS09FX.html).
1.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0014, P0015, P0024 OR P0025)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position and turn the tester on.

  1. Enter the following menus: Powertrain / Engine and ECT / DTC.

  1. Read the DTCs.

    Result:

    Display (DTC output)
    		Proceed to
    P0014, P0015, P0024 or P0025
    		A
    P0014, P0015, P0024 or P0025 and other DTCs
    		B
    HINT:
    If any DTCs other than P0014, P0015, P0024 or P0025 are output, troubleshoot those DTCs first.


B
GO TO DTC CHART (RAV4_ACA30 RM000002DSC02YX.html)
A


2.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OPERATE OCV)

  1. Connect the intelligent tester to the DLC3.

  1. Start the engine and turn the tester on.

  1. Warm up the engine.

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

  1. Check the engine speed while operating the Oil Control Valve (OCV) using the tester.

    OK:

    Tester Operation
    		Specified Condition
    OCV OFF
    		Normal engine speed
    OCV ON
    		Engine idles roughly or stalls (soon after OCV switched from OFF to ON)


NG
Go to step 4
OK


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

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position and turn the tester on.

  1. Clear the DTCs (RAV4_ACA30 RM000000PDK0WDX.html).

  1. Start the engine and warm it up.

  1. Switch the ECM from normal mode to check mode using the tester (RAV4_ACA30 RM000000PDL09GX.html).

  1. Drive the vehicle for more than 10 minutes.

  1. Read the DTCs using the tester.

    OK:
    No DTC output.


NG
Go to step 4
OK

END

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


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.2Gr-Fe Engine Control System.Sfi System. Dtc P0014 Camshaft Position B - Timing Over-Advanced Or System Performance (Bank 1)

  1. Remove the cylinder head covers RH and LH.

  1. Turn the crankshaft pulley, and align its groove with the timing mark "0" of the timing chain cover.

  1. Check that the timing marks of the camshaft timing gears are aligned with the timing marks of the bearing cap as shown in the illustration.
    If not, turn the crankshaft 1 revolution (360°), then align the marks as above.

    OK:
    Timing marks on the crankshaft timing gears are aligned as shown in the illustration.

  1. Reinstall the cylinder head covers.



NG
ADJUST VALVE TIMING (RAV4_ACA30 RM000000T4Y02OX.html)
OK


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


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.2Gr-Fe Engine Control System.Sfi System. Dtc P0014 Camshaft Position B - Timing Over-Advanced Or System Performance (Bank 1)

  1. Remove the exhaust camshaft OCV.

  1. Measure the resistance between the terminals of the OCV.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1 - 2
    		20°C (68°F)
    		6.9 to 7.9 Ω

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

    OK:
    Valve moves quickly.

  1. Reinstall the OCV.



NG
REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR EXHAUST CAMSHAFT) (RAV4_ACA30 RM000000PWO019X.html)
OK


6.INSPECT OIL CONTROL VALVE FILTER AND PIPE


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.2Gr-Fe Engine Control System.Sfi System. Dtc P0014 Camshaft Position B - Timing Over-Advanced Or System Performance (Bank 1)

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

  1. Remove the oil control valve filter.

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

    OK:
    Filter is not clogged.


NG
REPLACE OIL CONTROL VALVE FILTER OR PIPE
OK


7.REPLACE EXHAUST CAMSHAFT

NEXT


8.CHECK WHETHER DTC OUTPUT RECURS

  1. Clear the DTCs.

    1. Operate the intelligent tester, or disconnect the EFI and ETCS fuses for more than 60 seconds to erase the codes.

  1. Start the engine and warm up the engine.

  1. Switch the ECM from normal mode to check mode using the intelligent tester (RAV4_ACA30 RM000000PDL09GX.html).

  1. Drive the vehicle for more than 10 minutes or more.

  1. Read the output DTCs using the intelligent tester.

    OK:
    No DTC output.
    HINT:
    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 output even if the system returns to normal after a short time. These foreign objects are then captured by the oil, thus eliminating the source of the problem.


OK
SYSTEM IS OK
NG

REPLACE ECM (RAV4_ACA30 RM0000017UN01LX.html)