Dtc P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)

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

DESCRIPTION

MONITOR DESCRIPTION

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

CONFIRMATION DRIVING PATTERN

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0016)

PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE VVT LINEAR)

ADJUST VALVE TIMING

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV)

INSPECT OIL CONTROL VALVE FILTER

REPLACE CAMSHAFT TIMING GEAR ASSEMBLY

CHECK WHETHER DTC OUTPUT RECURS (DTC P0016)

DTC P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)


DESCRIPTION

In the VVT (Variable Valve Timing) system, the appropriate intake valve open and close timing is controlled by the ECM. The ECM performs intake valve control by performing the following: 1) controlling the camshaft and camshaft timing oil control valve, and operating the camshaft timing gear; and 2) changing the relative positions of the gaps between the camshaft and crankshaft.

DTC No.
DTC Detection Condition
Trouble Area
P0016
Deviation in crankshaft and camshaft position sensor signals (2 trip detection logic)
  1. Mechanical system (Timing chain has jumped tooth or chain stretched)
  2. OCV
  3. OCV filter
  4. Camshaft timing gear assembly
  5. ECM

MONITOR DESCRIPTION

The ECM optimizes the valve timing by using the VVT (Variable Valve Timing) system to control the intake camshaft. The VVT system includes the ECM, the Oil Control Valve (OCV) and the 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. The VVT controller can advance or retard the intake camshaft. The ECM calibrates the intake valve timing by setting the intake camshaft to the most retarded angle while the engine is idling. The ECM closes the OCV to retard the cam. The ECM stores this value as the VVT learning value. When the difference between the target and actual intake valve timings is 5°CA (Crankshaft Angle) or less, the ECM stores it.
If the VVT learning value matches the following conditions, the ECM determines the existence of a malfunction in the VVT system, and stores the DTC.
  1. VVT learning value: Less than 25°CA, or more than 51°CA.
  2. Above condition continues for 18 seconds or more.
This DTC indicates that the angle between the intake camshaft and the crankshaft is incorrect due to factors such as the timing chain having jumped a tooth.
This monitor begins to run after the engine has idled for 5 minutes.

MONITOR STRATEGY


Related DTCs
P0016: Camshaft timing misalignment at idling
Required Sensors/Components (Main)
VVT actuator
Required Sensors/Components (Related)
Camshaft position sensor, Crankshaft position sensor
Frequency of Operation
Continuous
Duration
Within 1 minute
MIL Operation
2 driving cycles
Sequence of Operation
None

TYPICAL ENABLING CONDITIONS


Monitor runs whenever following DTCs not present
P0010 (VVT OCV)
P0100, P0102, P0103 (MAF meter)
P0115, P0117, P0118 (ECT sensor)
P0125 (Insufficient ECT for closed loop)
P0335 (CKP sensor)
P0340 (CMP sensor)
Engine RPM
450 to 1000 rpm

TYPICAL MALFUNCTION THRESHOLDS


One of following conditions met
-
VVT learning at maximum retarded valve timing
Less than 25°CA
VVT learning at maximum retarded valve timing
More than 51°CA

CONFIRMATION DRIVING PATTERN


Yaris. Ncp93, 131.1Nz-Fe Engine Control.Sfi System (For Sedan). Dtc P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)

  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 ECT reaches 75°C (167°F) or higher [B].
  7. Idle the engine for 5 minutes or more [C].
  8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [D].
  9. 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.
  10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  11. Input the DTC: P0016.
  12. 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 ABNORMAL, the system has a malfunction.
    2. If the result shows INCOMPLETE or N/A, perform steps [E] through [G].
  13. Drive the vehicle for 2 to 3 minutes [E].
    CAUTION:
    When performing the confirmation driving pattern, obey all speed limits and traffic laws.
  14. Idle the engine for 5 minutes or more [F].
  15. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [G].
  16. 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.
  17. Check the DTC judgment result.
  18. If the test result is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and check for permanent DTCs (YARIS_NCP93 RM000000PDK0QGX.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 RM000000PDW0IEX_07.html).

INSPECTION PROCEDURE

HINT:
  1. The monitor for this DTC detects when the timing chain is shifted by one tooth or more.
  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 P0016)

  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
    DTC P0016 is output
    		A
    DTC P0016 and other DTCs are output
    		B
    HINT:
    If any DTCs other than P0016 are output, troubleshoot those DTCs first.


B
GO TO DTC CHART (YARIS_NCP93 RM000000PDF0E6X.html)
A


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

  1. Connect the Techstream to the DLC3.

  1. Start the engine and turn the Techstream on.

  1. Turn the Techstream on.

  1. Turn the A/C switch on.

  1. Warm up the engine.

  1. On the Techstream, enter the following menu: 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 RM000000PDN0J9X.html).


NG
Go to step 4
OK


3.ADJUST VALVE TIMING

  1. Adjust the valve timing (YARIS_NCP93 RM000001DCS011X.html).



NEXT
Go to step 7

4.INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV)

  1. Inspect the OCV (YARIS_NCP93 RM000001D0801BX.html).



NG
REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (YARIS_NCP93 RM000001D0A011X.html)
OK


5.INSPECT OIL CONTROL VALVE FILTER
Yaris. Ncp93, 131.1Nz-Fe Engine Control.Sfi System (For Sedan). Dtc P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)

  1. Remove the OCV filter.

  1. Check that the filter is not clogged.

    OK:
    Filter is not clogged.
    Text in Illustration
    *1
    		OCV Filter

  1. Reinstall the OCV filter.



NG
CLEAN OR REPLACE OIL CONTROL VALVE FILTER
OK


6.REPLACE CAMSHAFT TIMING GEAR ASSEMBLY

  1. Replace the camshaft timing gear assembly (YARIS_NCP93 RM000001DCS011X.html).


NEXT


7.CHECK WHETHER DTC OUTPUT RECURS (DTC P0016)

  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 RM000000PDK0QGX.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 P0016 is output
    		B


B
REPLACE ECM (YARIS_NCP93 RM000001CN002AX.html)
A

END