SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P034011, P034015, P034031, P034511, P034515, P034531

DTC Code	DTC Name
P034011	Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Ground
P034015	Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Battery or Open
P034031	Camshaft Position Sensor "A" Bank 1 or Single Sensor No Signal
P034511	Camshaft Position Sensor "A" Bank 2 Circuit Short to Ground
P034515	Camshaft Position Sensor "A" Bank 2 Circuit Short to Battery or Open
P034531	Camshaft Position Sensor "A" Bank 2 No Signal

DESCRIPTION

The VVT sensor (for intake camshaft) (VV1, VV2 signal) consists of a magnet and MRE (Magneto Resistance Element).

The intake camshaft has a timing rotor for the VVT sensor. When the intake camshaft rotates, changes occur in the air gaps between the timing rotor and MRE, which affects the magnetic field. As a result, the resistance of the MRE material fluctuates. The VVT sensor converts the camshaft rotation data to pulse signals, uses the pulse signals to determine the camshaft angle, and sends it to the ECM. Then the ECM uses this data to control fuel injection duration, injection timing and the Variable Valve Timing (VVT) system..

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P034011	Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Ground	The VVT sensor (for intake camshaft of bank 1) output voltage is less than 0.3 V for 4 seconds or more (1 trip detection logic).	Open or short in VVT sensor (for intake camshaft of bank 1) circuit VVT sensor (for intake camshaft of bank 1) ECM	Comes on	DTC stored	SAE Code: P0342
P034015	Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Battery or Open	The VVT sensor (for intake camshaft of bank 1) output voltage is higher than 4.7 V for 4 seconds or more (1 trip detection logic).	Open or short in VVT sensor (for intake camshaft of bank 1) circuit VVT sensor (for intake camshaft of bank 1) ECM	Comes on	DTC stored	SAE Code: P0343
P034031	Camshaft Position Sensor "A" Bank 1 or Single Sensor No Signal	A missing VVT sensor (for intake camshaft of bank 1) signal despite the crankshaft position sensor inputs being normal at an engine speed of 600 rpm or higher (1 trip detection logic).	Open or short in VVT sensor (for intake camshaft of bank 1) circuit VVT sensor (for intake camshaft of bank 1) Intake camshaft Valve timing ECM	Comes on	DTC stored	SAE Code: P0340
P034511	Camshaft Position Sensor "A" Bank 2 Circuit Short to Ground	The VVT sensor (for intake camshaft of bank 2) output voltage is less than 0.3 V for 4 seconds or more (1 trip detection logic).	Open or short in VVT sensor (for intake camshaft of bank 2) circuit VVT sensor (for intake camshaft of bank 2) ECM	Comes on	DTC stored	SAE Code: P0347
P034515	Camshaft Position Sensor "A" Bank 2 Circuit Short to Battery or Open	The VVT sensor (for intake camshaft of bank 2) output voltage is higher than 4.7 V for 4 seconds or more (1 trip detection logic).	Open or short in VVT sensor (for intake camshaft of bank 2) circuit VVT sensor (for intake camshaft of bank 2) ECM	Comes on	DTC stored	SAE Code: P0348
P034531	Camshaft Position Sensor "A" Bank 2 No Signal	A missing VVT sensor (for intake camshaft of bank 2) signal despite the crankshaft position sensor inputs being normal at an engine speed of 600 rpm or higher (1 trip detection logic).	Open or short in VVT sensor (for intake camshaft of bank 2) circuit VVT sensor (for intake camshaft of bank 2) Intake camshaft Valve timing ECM	Comes on	DTC stored	SAE Code: P0345


*a	5 V/DIV.
*b	20 ms./DIV.

Reference: Inspection using an oscilloscope.

Tech Tips

The correct waveform is as shown.
VV1 stands for the VVT sensor (for intake camshaft of bank 1) signal, and VV2 stands for the VVT sensor (for intake camshaft of bank 2) signal.

ECM Terminal Name

CH1: Between VV1+ and VV1-

CH2: Between VV2+ and VV2-

Tester Range

5 V/DIV., 20 ms./DIV.

Condition

Idling

MONITOR DESCRIPTION

If no pulse signal is transmitted by the VVT sensor (for intake camshaft) despite the camshaft rotating, or the rotation of the camshaft and the crankshaft is not synchronized, the ECM interprets this as a malfunction of the sensor.

Also, when the sensor output voltage remains at less than 0.3 V, or higher than 4.7 V for 4 seconds or more, the ECM stores a DTC.

MONITOR STRATEGY

Required Sensors/Components (Main)	VVT sensor (for intake camshaft)
Required Sensors/Components (Related)	Crankshaft position sensor
Frequency of Operation	Continuous

CONFIRMATION DRIVING PATTERN

Connect the GTS to the DLC3.
Turn the engine switch on (IG) and turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the engine switch off and wait for at least 30 seconds.
Turn the engine switch on (IG) and turn the GTS on.
Start the engine.
Idle the engine for 10 seconds or more [A].
Enter the following menus: Powertrain / Engine / Trouble Codes [B].
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 / Utility / All Readiness.
Input the DTC: P034011, P034015, P034031, P034511, P034515 or P034531.

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 [A] and [B] again.

WIRING DIAGRAM


*a	VVT Sensor (for Intake Camshaft of Bank 1)
*b	VVT Sensor (for Intake Camshaft of Bank 2)

CAUTION / NOTICE / HINT

Tech Tips

If no problem is found through this diagnostic troubleshooting procedure, there may be a mechanical problem with the engine.
Bank 1 refers to the bank that includes the No. 1 cylinder*.

*: The No. 1 cylinder is the cylinder which is farthest from the transaxle.
Bank 2 refers to the bank that does not include the No. 1 cylinder.
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 TERMINAL VOLTAGE (POWER SOURCE OF VVT SENSOR (FOR INTAKE CAMSHAFT))

Front view of wire harness connector

(to VVT Sensor (for Intake Camshaft))

Bank 1

Bank 2

Disconnect the VVT sensor (for intake camshaft) connector.
Turn the engine switch on (IG).

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

Standard Voltage

Tester Connection	Condition	Specified Condition
D29-3 (VC) - Body ground	Engine switch on (IG)	4.5 to 5.5 V
D31-3 (VC) - Body ground	Engine switch on (IG)	4.5 to 5.5 V

Result

Proceed to
OK
NG

CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR INTAKE CAMSHAFT) - ECM) Click here

CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR INTAKE CAMSHAFT) - ECM)

Disconnect the VVT sensor (for intake camshaft) connector.
Disconnect the ECM connector.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
D29-1 (VVR+) - D2-132 (VV1+)	Always	Below 1 Ω
D29-2 (VVR-) - D2-100 (VV1-)	Always	Below 1 Ω
D31-1 (VVL+) - D2-129 (VV2+)	Always	Below 1 Ω
D31-2 (VVL-) - D2-97 (VV2-)	Always	Below 1 Ω
D29-1 (VVR+) or D2-132 (VV1+) - Body ground and other terminals	Always	10 kΩ or higher
D29-2 (VVR-) or D2-100 (VV1-) - Body ground and other terminals	Always	10 kΩ or higher
D31-1 (VVL+) or D2-129 (VV2+) - Body ground and other terminals	Always	10 kΩ or higher
D31-2 (VVL-) or D2-97 (VV2-) - Body ground and other terminals	Always	10 kΩ or higher

Result

Proceed to
OK
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

CHECK SENSOR INSTALLATION (VVT SENSOR (FOR INTAKE CAMSHAFT))

Clearance

Check the VVT sensor (for intake camshaft) installation condition.

OK
VVT sensor is installed correctly.

Result

Proceed to
OK
NG

SECURELY REINSTALL VVT SENSOR Click here

INSPECT INTAKE CAMSHAFT (TIMING ROTOR)

Check the timing rotor of the intake camshaft.

OK
Camshaft timing rotor does not have any cracks or deformation.

Tech Tips

Perform "Inspection After Repair" after replacing the intake camshaft.

Click here

Result

Proceed to
OK
NG

REPLACE INTAKE CAMSHAFT Click here

CHECK VALVE TIMING (CHECK FOR LOOSE TIMING CHAIN AND JUMPED TEETH)

Remove the cylinder head cover sub-assembly and cylinder head cover sub-assembly LH.

*a	Timing Mark	*b	TDC Timing Mark
*c	Groove	-	-

Turn the crankshaft pulley and align its groove with the TDC timing mark of the timing chain cover.

Check that the timing marks of the camshaft timing gear assembly and camshaft timing exhaust gear assemblies are aligned with the timing marks of the bearing cap as shown in the illustration.

Tech Tips

If the timing marks are not as shown, turn the crankshaft one revolution clockwise.

OK
Timing marks on camshaft timing gear assemblies and camshaft timing exhaust gear assemblies are aligned as shown in the illustration.

Tech Tips

If the result is not as specified, check for mechanical malfunctions that may have affected the valve timing, such as a jumped tooth or stretching of the timing chain.

Result

Proceed to
OK
NG

CHECK ENGINE MECHANICAL SYSTEM Click here

REPLACE VVT SENSOR (FOR INTAKE CAMSHAFT)

Replace the VVT sensor (for intake camshaft).

Click here

Result

Proceed to
NEXT

CHECK WHETHER DTC OUTPUT RECURS (DTC P034011, P034015, P034031, P034511, P034515 OR P034531)

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Clear the DTCs.

Powertrain > Engine > Clear DTCs
Turn the engine switch off and wait for at least 30 seconds.
Start the engine.
Turn the GTS on.
Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine / Trouble Codes.

Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Result	Proceed to
DTCs are not output	A
DTC P034011, P034015, P034031, P034511, P034515 or P034531 is output	B

Tech Tips

If the engine does not start, replace the ECM.

END

REPLACE ECM Click here

CHECK ENGINE MECHANICAL SYSTEM

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

REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

CHECK WHETHER DTC OUTPUT RECURS (DTC P034011, P034015, P034031, P034511, P034515 OR P034531)

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Clear the DTCs.

Powertrain > Engine > Clear DTCs
Turn the engine switch off and wait for at least 30 seconds.
Start the engine.
Turn the GTS on.
Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine / Trouble Codes.

Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Result	Proceed to
DTCs are not output	A
DTC P034011, P034015, P034031, P034511, P034515 or P034531 is output	B

CHECK FOR INTERMITTENT PROBLEMS Click here

REPLACE ECM Click here

CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR INTAKE CAMSHAFT) - ECM)

Disconnect the VVT sensor (for intake camshaft) connector.
Disconnect the ECM connector.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
D29-3 (VC) - D2-99 (VCV1)	Always	Below 1 Ω
D31-3 (VC) - D2-98 (VCV2)	Always	Below 1 Ω
D29-3 (VC) or D2-99 (VCV1) - Body ground and other terminals	Always	10 kΩ or higher
D31-3 (VC) or D2-98 (VCV2) - Body ground and other terminals	Always	10 kΩ or higher

Result

Proceed to
OK
NG

REPLACE ECM Click here

REPAIR OR REPLACE HARNESS OR CONNECTOR