Dtc P0011 Camshaft Position A - Timing Over-Advanced Or System Performance (Bank 1)

Engine Hybrid System. Yaris. Ncp93, 131
1Nz-Fe Engine Control. Yaris. Ncp93, 131

DESCRIPTION

MONITOR DESCRIPTION

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

MONITOR RESULT

CONFIRMATION DRIVING PATTERN

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0011 OR P0012)

PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT LINEAR)

CHECK WHETHER DTC OUTPUT RECURS (DTC P0011 OR P0012)

CHECK VALVE TIMING (CHECK FOR LOOSE TIMING CHAIN OR JUMPED TEETH)

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

INSPECT OIL CONTROL VALVE FILTER

REPLACE CAMSHAFT TIMING GEAR ASSEMBLY

CHECK WHETHER DTC OUTPUT RECURS (DTC P0011 OR P0012)

DTC P0011 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1)

DTC P0012 Camshaft Position "A" - Timing Over-Retarded (Bank 1)


DESCRIPTION

Refer to DTC P0010 (YARIS_NCP93 RM000000PDW0K5X_01.html).

DTC No.
DTC Detection Condition
Trouble Area
P0011
Intake valve timing is stuck at a certain value when in the advance range
(1 trip detection logic)
  1. Valve timing
  2. Camshaft timing oil control valve assembly
  3. Oil control valve filter
  4. Camshaft timing gear assembly
  5. ECM
P0012
Intake valve timing is stuck at a certain value when in the retard range
(2 trip detection logic)
  1. Valve timing
  2. Camshaft timing oil control valve assembly
  3. Oil control valve filter
  4. Camshaft timing gear assembly
  5. ECM

MONITOR DESCRIPTION

  1. The ECM optimizes the intake valve timing using the Variable Valve Timing (VVT) system to control the intake camshaft. The VVT system includes the ECM, the camshaft timing oil control valve assembly and the VVT controller (camshaft timing gear assembly). The ECM sends a target duty-cycle control signal to the camshaft timing oil control valve assembly. This control signal regulates the oil pressure supplied to the VVT controller. The VVT controller can advance or retard the intake camshaft.
  2. If the difference between the target and actual intake valve timings is large, and changes in the actual intake valve timing are small, the ECM interprets this as the VVT controller stuck malfunction and stores a DTC.
  1. Example:
  2. A DTC is stored when the following conditions "A" and "B" are met:
    1. It takes 5 seconds or more to change the valve timing by 5°CA (Condition "A").
    2. After the above condition is met, the camshaft timing oil control valve assembly is forcibly activated for 10 seconds (Condition "B").
  3. DTC P0011 (Advanced Cam Timing) is subject to 1 trip detection logic.
  4. DTC P0012 (Retarded Cam Timing) is subject to 2 trip detection logic.
  5. These DTCs indicate that the VVT controller cannot operate properly due to camshaft timing oil control valve assembly malfunctions or the presence of foreign objects in the camshaft timing oil control valve assembly.

MONITOR STRATEGY


Related DTCs
P0011: Advanced camshaft timing
P0012: Retarded camshaft timing
Required Sensors/Components (Main)
VVT OCV and VVT Actuator
Required Sensors/Components (Related)
Crankshaft position sensor, camshaft position sensor and Engine coolant temperature sensor
Frequency of Operation
Continuous
Duration
Within 10 seconds
MIL Operation
Advanced camshaft timing: Immediate
Retarded camshaft timing: 2 driving cycles
Sequence of Operation
None

TYPICAL ENABLING CONDITIONS


Monitor runs whenever following DTCs not present
P0010 (VVT OCV)
P0016 (VVT system 1 - misalignment)
P0102, P0103 (Mass Air Flow Meter))
P0115, P0117, P0118 (Engine Coolant Temperature Sensor))
P0125 (Insufficient Coolant Temperature for Closed Loop Fuel Control)
P0335 (Crankshaft Position Sensor)
P0340 (Camshaft Position Sensor)
Battery voltage
11 V or more
Engine RPM
450 to 4000 rpm
ECT
75°C (167°F) to 100°C (212°F)

TYPICAL MALFUNCTION THRESHOLDS


Advanced Camshaft Timing
Both conditions are met:
-
Deviation of actual valve timing and target valve timing
More than 5°CA (Crankshaft Angle) for 5 seconds or more after the VVT hold duty ratio learned value reaches the upper or lower limit.
Valve timing
No change at advanced valve timing

Retarded Camshaft Timing
Both conditions are met:
-
Deviation of actual valve timing and target valve timing
More than 5°CA (Crankshaft Angle) for 5 seconds or more after the VVT hold duty ratio learned value reaches the upper or lower limit.
Valve timing
No change at retarded valve timing
  1. If the difference between the target and actual camshaft timing is greater than the specified value, the ECM operates the VVT controller for 10 seconds by applying and releasing oil pressure. Then, the ECM monitors the camshaft timing change for 10 seconds.

MONITOR RESULT

Refer to detailed information in Checking Monitor Status (YARIS_NCP93 RM000000PDR0B4X.html).

P0011, P0012: Exhaust Gas Recirculation/VVT / IN VVT STUCK B1
Monitor ID
Test ID
Scaling
Unit
Description
$35
$81
Multiply by 0.01
Seconds
Forced movement of oil control valve time

CONFIRMATION DRIVING PATTERN


Yaris. Ncp93, 131.1Nz-Fe Engine Control.Sfi System (For Sedan). Dtc P0011 Camshaft Position A - Timing Over-Advanced Or System Performance (Bank 1)

  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON and turn the Techstream on.
  3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
  4. Turn the ignition switch off and wait for at least 30 seconds.
  5. Turn the ignition switch to ON and turn the Techstream on [A].
  6. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
  7. Drive the vehicle at approximately 60 km/h (38 mph) for 10 minutes or more [C].
    CAUTION:
    When performing the confirmation driving pattern, obey all speed limits and traffic laws.
  8. Idle the engine for 3 minutes or more [D].
  9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [E].
  10. Read pending DTCs.
    HINT:
    1. If a pending DTC is output, the system is malfunctioning.
    2. If a pending DTC is not output, perform the following procedure.
  11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  12. Input the DTC: P0011 or P0012.
  13. Check the DTC judgment result.

    Techstream Display
    		Description
    NORMAL
    1. DTC judgment completed
    2. System normal
    ABNORMAL
    1. DTC judgment completed
    2. System abnormal
    INCOMPLETE
    1. DTC judgment not completed
    2. Perform driving pattern after confirming DTC enabling conditions
    N/A
    1. Unable to perform DTC judgment
    2. Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
    HINT:
    1. If the judgment result shows NORMAL, the system is normal.
    2. If the judgment result shows ABNORMAL, the system has a malfunction.
    3. If the judgment result shows INCOMPLETE or N/A, perform steps [F] through [H].
  14. Repeat the pattern of accelerating the vehicle from rest to approximately 60 km/h (38 mph) and then decelerating the vehicle 10 to 15 times [F].
    CAUTION:
    When performing the confirmation driving pattern, obey all speed limits and traffic laws.
    HINT:
    Depress the accelerator pedal by a large amount.
  15. Idle the engine for 3 minutes or more [G].
  16. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [H].
  17. Read pending DTCs.
    HINT:
    1. If a pending DTC is output, the system is malfunctioning.
    2. If a pending DTC is not output, perform the following procedure.
  18. Check the DTC judgment result again.
    HINT:
    1. If the judgment result shows NORMAL, the system is normal.
    2. If the judgment result shows ABNORMAL, the system has a malfunction.
    3. If the judgment result shows INCOMPLETE or N/A, perform the following procedure.
  19. Perform a universal trip and check for permanent DTCs (YARIS_NCP93 RM000000PDK0T5X.html).
    HINT:
    1. If a permanent DTC is output, the system is malfunctioning.
    2. If no permanent DTC is output, the system is normal.

WIRING DIAGRAM

Refer to DTC P0010 (YARIS_NCP93 RM000000PDW0K5X_07.html).

INSPECTION PROCEDURE

HINT:
  1. DTC P0011 or P0012 may be stored when foreign objects in the engine oil are caught in some parts of the system. The DTC will remain stored even if the system returns to normal after a short time. Foreign objects are filtered out by the oil filter.
  2. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. 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.
1.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0011 OR P0012)

  1. Connect the Techstream to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the Techstream on.

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

  1. Read DTCs.

    Result
    Result
    		Proceed to
    P0011 or P0012 is output
    		A
    DTC P0011 or P0012 and other DTCs are output
    		B
    HINT:
    If any DTCs other than P0011 or P0012 are output, troubleshoot those DTCs first.


B
GO TO DTC CHART (YARIS_NCP93 RM000000PDF0EWX.html)
A


2.PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT LINEAR)

  1. Connect the Techstream to the DLC3.

  1. Start the engine.

  1. Turn the Techstream on.

  1. Turn the A/C switch on.

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

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

    OK:

    Techstream Operation
    		Specified Condition
    0%
    		Normal engine speed
    100%
    		Engine idles roughly or stalls
    HINT:
    Refer to "Data List / Active Test" [VVT OCV Duty #1 and VVT Change Angle #1] (YARIS_NCP93 RM000000SXS05AX.html).


NG
Go to step 4
OK


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

  1. Connect the Techstream to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the Techstream on.

  1. Clear the DTCs (YARIS_NCP93 RM000000PDK0T5X.html).

  1. Turn the ignition switch off and wait for at least 30 seconds.

  1. Turn the ignition switch to ON.

  1. Turn the Techstream on.

  1. Start the engine and warm it up.

  1. Drive the vehicle in accordance with the driving pattern described in the Confirmation driving Pattern.

  1. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.

  1. Read pending DTCs.

    Result
    Result
    		Proceed to
    DTC is not output
    		A
    DTC P0011 or P0012 is output
    		B
    HINT:
    DTC P0011 or P0012 may be stored when foreign objects in the engine oil are caught in some parts of the system. The DTC 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.


B
Go to step 4
A

CHECK FOR INTERMITTENT PROBLEMS (YARIS_NCP93 RM000000PDQ0Q2X.html)

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


    Yaris. Ncp93, 131.1Nz-Fe Engine Control.Sfi System (For Sedan). Dtc P0011 Camshaft Position A - Timing Over-Advanced Or System Performance (Bank 1)

  1. Remove the cylinder head cover.

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

  1. Check that the timing marks on the camshaft timing sprocket and camshaft timing gear are facing upward as shown in the illustration.

    1. If not, turn the crankshaft 1 revolution (360°), then align the marks as above.
    OK:
    Timing marks on camshaft timing gears are aligned as shown in the illustration.
    Text in Illustration
    *a
    		Timing Marks (at top center of each gear)
    *b
    		Timing Mark (groove on crankshaft pulley)


NG
ADJUST VALVE TIMING (YARIS_NCP93 RM000001DFR02KX.html)
OK


5.INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

  1. Inspect the camshaft timing oil control valve assembly (YARIS_NCP93 RM000003VHJ00FX.html).



NG
REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (YARIS_NCP93 RM000003VHK00GX.html)
OK


6.INSPECT OIL CONTROL VALVE FILTER
Yaris. Ncp93, 131.1Nz-Fe Engine Control.Sfi System (For Sedan). Dtc P0011 Camshaft Position A - Timing Over-Advanced Or System Performance (Bank 1)

  1. Remove the oil control valve filter.

  1. Check that the filter is not clogged.

    OK:
    Filter is not clogged.
    Text in Illustration
    *1
    		Oil Control Valve Filter

  1. Reinstall the oil control valve filter.



NG
CLEAN OR REPLACE OIL CONTROL VALVE FILTER
OK


7.REPLACE CAMSHAFT TIMING GEAR ASSEMBLY

  1. Replace the camshaft timing gear assembly (YARIS_NCP93 RM000001DCS015X.html).

    HINT:
    Perform "Inspection After Repair" after replacing the camshaft timing gear assembly (YARIS_NCP93 RM000004NJD006X.html).

NEXT


8.CHECK WHETHER DTC OUTPUT RECURS (DTC P0011 OR P0012)

  1. Connect the Techstream to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the Techstream on.

  1. Clear the DTCs (YARIS_NCP93 RM000000PDK0T5X.html).

  1. Turn the ignition switch off and wait for at least 30 seconds.

  1. Turn the ignition switch to ON.

  1. Turn the Techstream on.

  1. Start the engine and warm it up.

  1. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.

  1. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.

  1. Read pending DTCs.

    Result
    Result
    		Proceed to
    DTC is not output
    		A
    DTC P0011 or P0012 is output
    		B
    HINT:
    DTC P0011 or P0012 may be stored when foreign objects in the engine oil are caught in some parts of the system. The DTC 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.


B
REPLACE ECM (YARIS_NCP93 RM000001CN002IX.html)
A

END