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

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

DESCRIPTION

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

The intake camshaft has a timing rotor for the camshaft position 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 camshaft position 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 and injection timing.

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 camshaft position sensor (for intake camshaft) output voltage is less than 0.3 V for 4 seconds or more (1 trip detection logic).	Open or short in camshaft position sensor (for intake camshaft) circuit Camshaft position sensor (for intake camshaft) 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 camshaft position sensor (for intake camshaft) output voltage is higher than 4.7 V for 4 seconds or more (1 trip detection logic).	Open or short in camshaft position sensor (for intake camshaft) circuit Camshaft position sensor (for intake camshaft) ECM	Comes on	DTC stored	SAE Code: P0343
P034031	Camshaft Position Sensor "A" Bank 1 or Single Sensor No Signal	A missing camshaft position sensor (for intake camshaft) 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 camshaft position sensor (for intake camshaft) circuit Camshaft position sensor (for intake camshaft) Intake camshaft Valve timing ECM	Comes on	DTC stored	SAE Code: P0340


*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 camshaft position sensor signal (for intake camshaft), and EV1 stands for the camshaft position sensor signal (for exhaust camshaft).

ECM Terminal Name

CH1: Between VV1+ and VV1-

CH2: Between EV1+ and EV1-

Tester Range

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

Condition

Idling with warm engine

MONITOR DESCRIPTION

If no pulse signal is transmitted by the camshaft position 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)	Camshaft position 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.
Enter the following menus: Powertrain / Engine / Trouble Codes.
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 or P034031.

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 the Confirmation Driving Pattern and check the DTC judgment result again.

WIRING DIAGRAM


*a	Camshaft Position Sensor (for Intake Camshaft)

CAUTION / NOTICE / HINT

Tech Tips

If no problem is found through this diagnostic troubleshooting procedure, there may be a mechanical problem with the engine.
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 CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT))

*a	Front view of wire harness connector (to Camshaft Position Sensor (for Intake Camshaft))

Disconnect the camshaft position 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
F70-3 (VC) - Body ground	Engine switch on (IG)	4.5 to 5.5 V

Result

Proceed to
OK
NG

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

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

Disconnect the camshaft position 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
F70-1 (VVI+) - F66-82 (VV1+)	Always	Below 1 Ω
F70-2 (VVI-) - F66-114 (VV1-)	Always	Below 1 Ω
F70-1 (VVI+) or F66-82 (VV1+) - Body ground and other terminals	Always	10 kΩ or higher
F70-2 (VVI-) or F66-114 (VV1-) - Body ground and other terminals	Always	10 kΩ or higher

Result

Proceed to
OK
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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

Clearance

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

OK
Camshaft position sensor is installed correctly.

Result

Proceed to
OK
NG

SECURELY REINSTALL CAMSHAFT POSITION SENSOR Click here

INSPECT 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.

*a	7.45°	*b	32.43°
*c	Timing Mark	*d	"0" Timing Mark
*e	Groove	-	-

Turn the crankshaft pulley and align its groove with the "0" timing mark of the timing chain cover.

Check that the timing marks of the camshaft timing gear assembly and camshaft timing exhaust gear assembly are at the positions shown in the illustration.

Tech Tips

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

OK
Timing marks on camshaft timing gear assembly and camshaft timing exhaust gear assembly are at the positions 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 CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT)

Replace the camshaft position sensor (for intake camshaft).

Click here

Result

Proceed to
NEXT

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

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
DTC P034011, P034015 or P034031 is output	A
DTCs are not output	B

Tech Tips

If the engine does not start, replace the ECM.

REPLACE ECM Click here

END

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 OR P034031)

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
DTC P034011, P034015 or P034031 is output	A
DTCs are not output	B

REPLACE ECM Click here

CHECK FOR INTERMITTENT PROBLEMS Click here

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

Disconnect the camshaft position 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
F70-3 (VC) - F66-113 (VCV1)	Always	Below 1 Ω
F70-3 (VC) or F66-113 (VCV1) - 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