2NZ-FE ENGINE CONTROL  SFI SYSTEM  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 assembly, and operating the camshaft timing gear; and 2) changing the relative positions of the camshaft and crankshaft.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) Deviation in crankshaft position sensor signal and camshaft position sensor signal (2 trip detection logic).
·

Valve timing

·

Camshaft timing oil control valve assembly

·

Camshaft timing gear assembly

·

Oil control valve filter

·

ECM


Does not come on DTC stored

MONITOR DESCRIPTION

To monitor the correlation of the intake camshaft position and crankshaft position, the ECM checks the VVT learned value while the engine is idling. The VVT learned value is calibrated based on the camshaft position and crankshaft position. The intake valve timing is set to the most retarded angle while the engine is idling. If the VVT learned value is out of the specified range in consecutive driving cycles, the ECM stores DTC P0016.

MONITOR STRATEGY

Required Sensors/Components (Main) Camshaft timing gear assembly
Required Sensors/Components (Related) Camshaft position sensor
Crankshaft position sensor
Frequency of Operation Continuous

TYPICAL ENABLING CONDITIONS

P0016: Intake Camshaft
Engine speed 450 to 1000 rpm

CONFIRMATION DRIVING PATTERN

A197314E46
4.25,1.115 4.594,0.49 4.594,0.49 4.74,0.49 false 0.167,0.719 1.271,1.073 1.104,0.354 10 Vehicle Speed 1.563,2.156 1.865,2.438 0.302,0.281 10 [A] 2.188,1.646 2.563,1.896 0.375,0.25 10 [B] 3.198,1.646 3.521,1.906 0.323,0.26 10 [C] 3.823,3.021 4.135,3.281 0.313,0.26 10 [D] 4.552,0.885 4.854,1.167 0.302,0.281 10 [E] 5.75,1.635 6.063,1.948 0.313,0.313 10 [F] 6.354,3.021 6.729,3.385 0.375,0.365 10 [G] 0.719,1.781 1.313,2.146 0.594,0.365 10 Idling 4.781,0.323 6.219,0.771 1.438,0.448 10 There is no designated vehicle speed 0.177,2.052 1.125,2.51 0.948,0.458 10 Ignition Switch ON 1.906,2.563 2.688,3.052 0.781,0.49 10 Warming up the engine 2.74,2.573 4.146,2.906 1.406,0.333 10 5 minutes or more 5.26,2.573 6.51,2.875 1.25,0.302 10 5 minutes or more 4.125,2.573 5.125,2.813 1,0.24 10 2 to 3 minutes

1.

Connect the GTS to the DLC3.

2.

Turn the ignition switch to ON and turn the GTS 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 GTS on [A].

6.

Start the engine and warm it up until the engine coolant temperature 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 the pending DTCs.

HINT:
·

If a pending DTC is output, the system is malfunctioning.

·

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.

GTS Display Description
NORMAL
·

DTC judgment completed

·

System normal


ABNORMAL
·

DTC judgment completed

·

System abnormal


INCOMPLETE
·

DTC judgment not completed

·

Perform driving pattern after confirming DTC enabling conditions


N/A
·

Unable to perform DTC judgment

·

Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit



HINT:
·

If the judgment result shows NORMAL, the system is normal.

·

If the judgment result shows ABNORMAL, the system has a malfunction.

·

If the judgment 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:
·

If a pending DTC is output, the system is malfunctioning.

·

If a pending DTC is not output, perform the following procedure.



17.

Check the DTC judgment result.

HINT:
·

If the judgment result shows NORMAL, the system is normal.

·

If the judgment result shows ABNORMAL, the system has a malfunction.




CAUTION / NOTICE / HINT

HINT:
·

The monitor for this DTC detects when the timing chain is shifted by 2 to 3 teeth or more.

·

Read freeze frame data using the GTS. 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.



PROCEDURE

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

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

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


e.

Read the DTCs.

Powertrain > Engine and ECT > Trouble Codes
50001 234
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.




A

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

B

CHECK DTC CHART

Click hereEngine / Hybrid System>2NZ-FE ENGINE CONTROL>SFI SYSTEM>DIAGNOSTIC TROUBLE CODE CHART


2.PERFORM ACTIVE TEST USING GTS (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY)
HINT:

If the VVT system can be operated through the Active Test, it can be assumed that the VVT system is operating normally.


a.

Connect the GTS to the DLC3.


b.

Start the engine.


c.

Turn the A/C on.


d.

Turn the GTS on.


e.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Linear (Bank1) / VVT Change Angle #1.

Powertrain > Engine and ECT > Active Test
Active Test Display
Control the VVT Linear (Bank1)
Data List Display
VVT Change Angle #1
50004 234 32 305

f.

Perform the Active Test. Check that the displacement angle varies.

OK:

Displacement angle varies.



Result:
Proceed to
OK
NG



OK

3.CHECK ENGINE MECHANICAL SYSTEM

NG

4.INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY
3.CHECK ENGINE MECHANICAL SYSTEM
a.

Check for mechanical malfunctions that affect the valve timing, such as a jumped tooth or stretching of the timing chain.


Result:
Proceed to
OK
NG



OK

7.CHECK WHETHER DTC OUTPUT RECURS (DTC P0016)

NG

REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

4.INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY
a.

Inspect the camshaft timing oil control valve assembly.

Click hereEngine / Hybrid System>2NZ-FE ENGINE CONTROL>CAMSHAFT OIL CONTROL VALVE>INSPECTION


Result:
Proceed to
OK
NG



OK

5.INSPECT OIL CONTROL VALVE FILTER

NG

REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

Click hereEngine / Hybrid System>2NZ-FE ENGINE CONTROL>CAMSHAFT OIL CONTROL VALVE>REMOVAL


5.INSPECT OIL CONTROL VALVE FILTER

Click hereEngine / Hybrid System>2NZ-FE ENGINE CONTROL>SFI SYSTEM>P0011

Result:
Result
OK
NG



OK

6.INSPECT CAMSHAFT TIMING GEAR ASSEMBLY

NG

REPLACE OIL CONTROL VALVE FILTER

Click hereEngine / Hybrid System>2NZ-FE ENGINE MECHANICAL>CYLINDER HEAD>DISASSEMBLY


6.INSPECT CAMSHAFT TIMING GEAR ASSEMBLY
a.

Inspect the camshaft timing gear assembly.

Click hereEngine / Hybrid System>2NZ-FE ENGINE MECHANICAL>ENGINE UNIT>INSPECTION


Result:
Proceed to
OK
NG



OK

7.CHECK WHETHER DTC OUTPUT RECURS (DTC P0016)

NG

REPLACE CAMSHAFT TIMING GEAR ASSEMBLY

Click hereEngine / Hybrid System>2NZ-FE ENGINE MECHANICAL>CAMSHAFT>REMOVAL


7.CHECK WHETHER DTC OUTPUT RECURS (DTC P0016)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Clear the DTCs.

Powertrain > Engine and ECT > Clear DTCs
50002 234

e.

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


f.

Turn the ignition switch to ON.


g.

Turn the GTS on.


h.

Start the engine and warm it up.


i.

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


j.

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


k.

Read the pending DTCs.

Powertrain > Engine and ECT > Trouble Codes
50001 234
Result:
Result Proceed to
DTCs are not output A
DTC P0016 is output B




A

CHECK FOR INTERMITTENT PROBLEMS

Click hereEngine / Hybrid System>2NZ-FE ENGINE CONTROL>SFI SYSTEM>CHECK FOR INTERMITTENT PROBLEMS


B

REPLACE ECM

Click hereEngine / Hybrid System>2NZ-FE ENGINE CONTROL>ECM>REMOVAL