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 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.	Detection Condition	Trouble Area
P0016	Deviation in crankshaft position sensor signal and VVT sensor (for intake camshaft (bank 1)) signal (2 trip detection logic)	Mechanical system (Timing chain has jumped tooth or chain stretched) Camshaft timing oil control valve (for intake camshaft) Camshaft timing gear assembly (for intake camshaft) ECM
P0017	Deviation in crankshaft position sensor signal and VVT sensor (for exhaust camshaft (bank 1)) signal (2 trip detection logic)	Mechanical system (Timing chain has jumped tooth or chain stretched) Camshaft timing oil control valve (for exhaust camshaft) Camshaft timing gear assembly (for exhaust camshaft) ECM

To monitor the correlation of the intake camshaft position and crankshaft position, the ECM checks the VVT learning value while the engine is idling. The VVT learning 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 learning value is out of specified range in consecutive driving cycles, the ECM illuminates the MIL and sets the DTC P0016.
To monitor the correlation of the exhaust camshaft position and crankshaft position, the ECM checks the VVT learning value while the engine is idling. The VVT learning 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 learning value is out of specified range in consecutive driving cycles, the ECM illuminates the MIL and sets the DTC P0017.

WIRING DIAGRAM

Refer to DTC P0010 Click here.

Refer to DTC P0013 Click here.

CAUTION / NOTICE / HINT

Tech Tips

Read freeze frame data using the intelligent tester. 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 P0016 OR P0017)

Connect an intelligent tester to the DLC3.
Turn the ignition switch to ON.
Turn the tester on.
Enter the following menus: Powertrain / Engine and ECT / DTC.

Read DTCs.

Result
Result	Proceed to
P0016 or P0017	A
P0016 or P0017 and other DTCs	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 INTELLIGENT TESTER (OPERATE OIL CONTROL VALVE)

Connect the intelligent tester to the DLC3.
Start the engine.
Turn the tester 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 intelligent tester with the engine coolant temperature is 50°C (122°F) or less.

Tech Tips

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

Tester 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 intelligent tester with the engine coolant temperature is 50°C (122°F) or less.

Tech Tips

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

Tester 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 CAMSHAFT) Click here

CHECK WHETHER DTC OUTPUT RECURS (DTC P0016 OR P0017)

Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON.
Turn the tester on.
Clear the DTCs.
Start the engine and warm it up.
Switch the ECM from normal mode to check mode using the tester.
Allow the engine to idle for 5 minutes or more.
Enter the following menus: Powertrain / Engine and ECT / DTC.

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 stay output 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

ADJUST VALVE TIMING Click here

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

Tech Tips

Inspect the specified oil control valve assembly (for intake camshaft or exhaust camshaft) in accordance with the inspection result of step 2.

Text in Illustration

*1
Component without harness connected

(Camshaft Timing Oil Control Valve)

Remove the camshaft timing oil control valve assembly (for intake camshaft or exhaust camshaft).

Text in Illustration
*1	Component without harness connected (Camshaft Timing Oil Control Valve)

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
1 - 2	20°C (68°F)	6.9 to 7.9 Ω


*1	Component without harness connected: (OCV for Intake Camshaft or OCV for Exhaust Camshaft)
*2	Valve moves

Apply battery voltage to terminals of the oil control valve assembly (for intake camshaft or exhaust camshaft). Check the valve operation.

OK
Valve moves quickly.

Reinstall the oil control valve (for intake camshaft or exhaust camshaft).

REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY Click here

INSPECT CAMSHAFT TIMING GEAR ASSEMBLY (FOR INTAKE OR EXHAUST CAMSHAFT)
1. Inspect the camshaft timing gear assembly (for intake camshaft) Click here.
2. Inspect the camshaft timing gear assembly (for exhaust camshaft) Click here.
NG
REPLACE CAMSHAFT TIMING GEAR ASSEMBLY Click here

OK
ADJUST VALVE TIMING

Tech Tips

There are no marks on the cylinder head to match-up for the purpose of checking valve timing. Valve timing can only be inspected by lining up the colored plates on the timing chain with the marks on the pulleys. It may be necessary to remove and re-install the chain to match-up the timing marks Click here.

NEXT

CHECK WHETHER DTC OUTPUT RECURS (DTC P0016 OR P0017)

Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON.
Turn the tester on.
Clear the DTCs Click here.
Start the engine and warm it up.
Switch the ECM from normal mode to check mode using the tester.
Allow the engine to idle for 5 minutes or more.
Enter the following menus: Powertrain / Engine and ECT / DTC.

Read the DTCs.

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

SYSTEM IS OK

REPLACE ECM Click here