SFI SYSTEM, Diagnostic DTC:P0016, P0017

DTC Code	DTC Name
P0016	Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
P0017	Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B)

DESCRIPTION

In the VVT system, the appropriate intake and exhaust valve open and close timing is controlled by the ECM. The ECM performs intake and exhaust 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 Condition	Trouble Area
P0016	Deviation in crankshaft position sensor signal and camshaft position sensor (for intake camshaft) signal (2 trip detection logic).	Mechanical system (timing chain jumped tooth or chain stretched) Camshaft timing oil control valve assembly (for intake side) Camshaft timing gear assembly ECM
P0017	Deviation in crankshaft position sensor signal and camshaft position sensor (for exhaust camshaft) signal (2 trip detection logic).	Mechanical system (timing chain jumped tooth or chain stretched) Camshaft timing oil control valve assembly (for exhaust side) Camshaft timing exhaust gear assembly ECM

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 specified range in consecutive driving cycles, the ECM illuminates the MIL and stores DTC P0016.
To monitor the correlation of the exhaust 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 exhaust valve timing is set to the most advanced angle while the engine is idling. If the VVT learned value is out of specified range in consecutive driving cycles, the ECM illuminates the MIL and stores DTC P0017.

WIRING DIAGRAM

Refer to DTC P0010 Click here.

Refer to DTC P0013 Click here.

CONFIRMATION DRIVING PATTERN

Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) Click here.
Turn the ignition switch off and wait for at least 30 seconds.
Turn the ignition switch to ON and turn the GTS on [A].
Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
Idle the engine for 5 minutes or more [C].
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [D].
Read the pending DTCs.
Tech Tips
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
Input the DTC: P0016 or P0017.

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

Tech Tips

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].

Drive the vehicle for 2 to 3 minutes [E].

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Idle the engine for 5 minutes or more [F].
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [G].
Read the pending DTCs.
Tech Tips
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
Check the DTC judgment result.
Tech Tips
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.

CAUTION / NOTICE / HINT

Tech Tips

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

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO P0016 OR P0017)

Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

Read the DTCs.

Result
Result	Proceed to
DTC P0016 or P0017 is output	A
DTC P0016 or P0017 and other DTCs are output	B

Tech Tips

If any DTCs other than P0016 or P0017 are output, troubleshoot those DTCs first.

GO TO DTC CHART Click here

PERFORM ACTIVE TEST USING GTS (OPERATE OIL CONTROL VALVE)

Connect the GTS to the DLC3.
Start the engine.
Turn the GTS on.

Inspect the oil control valve (for intake camshaft).

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

Check the engine speed when the oil control valve is operated using the GTS when the engine coolant temperature is 50°C (122°F) or less.

Tech Tips

When performing the Active Test, the air conditioning should be on.
Make sure engine coolant temperature when the engine is started should be 30°C (86°F) or less.

GTS Operation

Specified Condition

Oil control valve OFF

Normal engine speed

Oil control valve ON

Engine idles roughly or stalls

(soon after oil control valve switched from OFF to ON)

Inspect the oil control valve (for exhaust camshaft).

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

Check the engine speed when the oil control valve is operated using the GTS when the engine coolant temperature is 50°C (122°F) or less.

Tech Tips

When performing the Active Test, the air conditioning should be on.
Make sure engine coolant temperature when the engine is started should be 30°C (86°F) or less.

GTS Operation	Specified Condition
-128% (Oil control valve OFF)	Normal engine speed
127% (Oil control valve ON)	Engine idles roughly or stalls (soon after oil control valve switched from OFF to ON)

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE OR EXHAUST SIDE) Click here

CHECK WHETHER DTC OUTPUT RECURS (DTC P0016 OR P0017)

Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs Click here.
Turn the ignition switch off and wait for at least 30 seconds.
Turn the ignition switch to ON and turn the GTS on.
Start the engine and warm it up.
Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

Read the DTCs.

Result
Result	Proceed to
DTC is not output	A
DTC P0016 or P0017 is output	B

Tech Tips

DTC P0016 or P0017 is output when foreign objects in engine oil are caught in some parts of the system. These codes will remain stored for a short time even after the system returns to normal. These foreign objects are then captured by the oil filter, thus eliminating the source of the problem.

CHECK FOR INTERMITTENT PROBLEMS Click here

CHECK ENGINE MECHANICAL SYSTEM Click here

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE OR EXHAUST SIDE)

Tech Tips

Inspect the specified camshaft timing oil control valve assembly (for intake or exhaust side) in accordance with the inspection result of the step Perform Active Test Using GTS (Operate Oil Control Valve).
1. Inspect the camshaft timing oil control valve assembly (for intake or exhaust side) Click here.
NG
REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE OR EXHAUST SIDE) Click here

OK
INSPECT CAMSHAFT TIMING GEAR ASSEMBLY OR CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY
1. Inspect the camshaft timing gear assembly Click here.
2. Inspect the camshaft timing exhaust gear assembly Click here.
  
  Tech Tips
  
  Perform "Inspection After Repair" after replacing the camshaft timing gear assembly or camshaft timing exhaust gear assembly Click here.
NG
REPLACE CAMSHAFT TIMING GEAR ASSEMBLY OR CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY Click here

OK
CHECK ENGINE MECHANICAL SYSTEM
1. Check for mechanical malfunctions that affect the valve timing, such as a jumped tooth or stretching of the timing chain Click here.
NG
REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

OK

CHECK WHETHER DTC OUTPUT RECURS (DTC P0016 OR P0017)

Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs Click here.
Turn the ignition switch off and wait for at least 30 seconds.
Turn the ignition switch to ON and turn the GTS on.
Start the engine and warm it up.
Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

Read the DTCs.

Result
Result	Proceed to
DTC is not output	A
DTC P0016 and/or P0017 is output	B

SYSTEM IS OK

REPLACE ECM Click here