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

Engine Hybrid System. Corolla. Zre142 Aze141
2Az-Fe Engine Control. Corolla. Zre142 Aze141

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 (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE)

CHECK WHETHER DTC OUTPUT RECURS (DTC P0011 OR P0012)

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

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

INSPECT OIL CONTROL VALVE FILTER

REPLACE CAMSHAFT TIMING GEAR ASSEMBLY

CHECK WHETHER DTC OUTPUT RECURS

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 (Link).

DTC No.
DTC Detection Condition
Trouble Area
P0011
Valve timing is not adjusted in valve timing 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
Valve timing is not adjusted in valve timing retard range
(2 trip detection logic)

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 timing is large, and changes in the actual intake valve timing are small, the ECM interprets this as a 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 a camshaft timing oil control valve assembly malfunction 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 camshaft timing oil control valve assembly and camshaft timing gear assembly
Required Sensors/Components (Related)
Crankshaft position sensor
Camshaft position sensor
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 are not present
P0010 (VVT Oil Control Valve)
P0016 (VVT System - Misalignment)
P0102, P0103 (Mass Air Flow Meter)
P0115, P0117, P0118 (Engine Coolant Temperature Sensor)
P0125 (Insufficient Engine Coolant Temperature for Closed Loop Fuel Control)
P0335 (Crankshaft Position Sensor)
P0340 (Camshaft Position Sensor)
Battery voltage
11 V or more
Engine speed
550 to 4000 rpm
Engine coolant temperature
75 to 100°C (167 to 212°F)

TYPICAL MALFUNCTION THRESHOLDS


Advanced Camshaft Timing
Both of the following 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 of the following 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 camshaft timing oil control valve assembly for 10 seconds by applying and releasing oil pressure.
  2. Then, the ECM monitors the camshaft timing change for 10 seconds.

MONITOR RESULT

Refer to Checking Monitor Status (COROLLA_ZRE142 RM000000PDR0CFX.html).

CONFIRMATION DRIVING PATTERN


Corolla. Zre142 Aze141.2Az-Fe Engine Control.Sfi System. 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 the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  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 (37 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 the 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 (37 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 the 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 (COROLLA_ZRE142 RM000000PDK0ZBX.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 (COROLLA_ZRE142 RM000000PDW0NUX_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 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.
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
    		A
    P0011 or P0012 and other DTCs
    		B
    HINT:
    If any DTCs other than P0011 or P0012 are output, troubleshoot those DTCs first.


B
GO TO DTC CHART (COROLLA_ZRE142 RM000000PDF0G9X.html)
A


2.PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE)

  1. Connect the Techstream to the DLC3.

  1. Start the engine.

  1. Turn the Techstream 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 camshaft timing oil control valve 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, VVT Change Angle #1] (COROLLA_ZRE142 RM000000PDN0MIX.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 (COROLLA_ZRE142 RM000000PDK0ZBX.html).

  1. Start the engine and warm it up.

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

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

  1. Read DTCs.

    Result:

    Result
    		Proceed to
    No output
    		A
    P0011 or P0012
    		B
    HINT:
    DTC P0011 or P0012 is output when foreign objects in engine oil are caught in some parts of the system. These codes will remain set for a short time even after the system returns to normal. These foreign objects may then be captured by the oil filter, thus eliminating the source of the problem.


B
Go to step 4
A

CHECK FOR INTERMITTENT PROBLEMS (COROLLA_ZRE142 RM000000PDQ0VNX.html)

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


    Corolla. Zre142 Aze141.2Az-Fe Engine Control.Sfi System. Dtc P0011 Camshaft Position A - Timing Over-Advanced Or System Performance (Bank 1)

  1. Remove the cylinder head cover (COROLLA_ZRE142 RM0000032Z3011X.html).

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

  1. Check that the alignment marks of the camshaft timing gears are aligned with the alignment 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:
    Alignment marks on camshaft timing gears are aligned as shown in the illustration.

  1. Reinstall the cylinder head cover (COROLLA_ZRE142 RM0000032Z4011X.html).



NG
ADJUST VALVE TIMING (COROLLA_ZRE142 RM00000224800UX.html)
OK


5.INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

  1. Inspect the camshaft timing oil control valve assembly (COROLLA_ZRE142 RM000003D3000BX.html).



NG
REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (COROLLA_ZRE142 RM000003D3100AX.html)
OK


6.INSPECT OIL CONTROL VALVE FILTER


    Corolla. Zre142 Aze141.2Az-Fe Engine Control.Sfi System. Dtc P0011 Camshaft Position A - Timing Over-Advanced Or System Performance (Bank 1)

  1. Remove the oil control valve filter (COROLLA_ZRE142 RM00000224700UX.html).

    OK:
    Filter is not clogged.

  1. Reinstall the oil control valve filter (COROLLA_ZRE142 RM00000224800UX.html).



NG
REPLACE OIL CONTROL VALVE FILTER (COROLLA_ZRE142 RM00000224600NX.html)
OK


7.REPLACE CAMSHAFT TIMING GEAR ASSEMBLY

  1. Replace the camshaft timing gear assembly (COROLLA_ZRE142 RM0000032YD00XX.html).


NEXT


8.CHECK WHETHER DTC OUTPUT RECURS

  1. Connect the Techstream to the DLC3

  1. Turn the ignition switch to ON.

  1. Turn the Techstream on.

  1. Clear the DTCs (COROLLA_ZRE142 RM000000PDK0ZBX.html).

  1. Start the engine and warm it up.

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

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

  1. Read DTCs.

    Result:

    Result
    		Proceed to
    No output
    		A
    P0011 or P0012
    		B


B
REPLACE ECM (COROLLA_ZRE142 RM000002WT402ZX.html)
A

END