DTC Code | DTC Name |
---|---|
P0340 | Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor) |
P0344 | Camshaft Position Sensor "A" Circuit Intermittent (Bank 1 or Single Sensor) |
DESCRIPTION
The camshaft position sensor is installed on the cylinder head cover. The camshaft has a timing rotor for the camshaft position sensor. When the camshaft rotates, the tooth on the camshaft passes the camshaft position sensor. The generated voltage in the sensor acts as a signal. The ECM locates each cylinder position based on the combination of this signal and crankshaft position sensor signal.
The camshaft position sensor (G signal sensor) consists of a magnet and MRE (Magneto Resistance Element).
The camshaft timing gear has a NO. 2 crank angle sensor plate for the camshaft position sensor. When the camshaft rotates, changes occur in the air gaps between the sensor plate 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 time and injection timing.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
---|---|---|---|---|---|
P0340 | Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor) |
Either of following conditions is met: (1 trip detection logic)
|
|
Comes on | DTC stored |
P0344 | Camshaft Position Sensor "A" Circuit Intermittent (Bank 1 or Single Sensor) |
Wrong pattern of signal from camshaft position sensor is detected (1 trip detection logic) |
|
Comes on | DTC stored |
DTC No. | DTC Detection Drive Pattern |
---|---|
P0340 | Engine cranks 4 revolutions or more |
P0344 | Engine cranks 6 revolutions or more |
WIRING DIAGRAM
*a | Camshaft Position Sensor |
*b | (Shielded) |
*a | Camshaft Position Sensor |
CAUTION / NOTICE / HINT
When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the GTS. Then after installing a new ECM, perform all of the initialization and registration procedures for the "Learning Values Write" function by following the instructions shown on the GTS display.
Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
PROCEDURE
SYSTEM CHECK
Check whether the vehicle is equipped with the stop and start system.
Result | ||||||
---|---|---|---|---|---|---|
|
B | Нажмите здесь |
A |
INSPECT CAMSHAFT POSITION SENSOR
Inspect the camshaft position sensor.
Click hereНажмите здесь
Result | |||
---|---|---|---|
|
NG | Нажмите здесь |
GO TO STEP 8 |
OK |
CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR - ECM)
Disconnect the camshaft position sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Result | |||
---|---|---|---|
|
NG | Нажмите здесь |
OK |
CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR)
*a | Normal |
*b | Abnormal |
*c | Clearance |
Check the camshaft position sensor installation.
OK |
---|
Sensor is installed correctly. |
Result | |||
---|---|---|---|
|
NG | Нажмите здесь |
OK |
CHECK CAMSHAFT (TIMING ROTOR)
Check the timing rotor of the camshaft.
OK |
---|
Camshaft timing rotor does not have any cracks or deformation. |
Result | |||
---|---|---|---|
|
NG | Нажмите здесь |
OK |
ADJUST VALVE TIMING
Adjust the valve timing.
Click hereНажмите здесь
Result | ||
---|---|---|
|
NEXT |
CHECK WHETHER DTC OUTPUT RECURS (DTC P0340 AND/OR P0344)
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs.
Powertrain > Engine and ECT > Clear DTCsStart the engine.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Read the DTCs.
Powertrain > Engine and ECT > Trouble CodesResult | ||||||
---|---|---|---|---|---|---|
|
B |
END |
A |
REPLACE CAMSHAFT POSITION SENSOR
Replace the camshaft position sensor.
Click hereНажмите здесь
Result | ||
---|---|---|
|
NEXT |
CHECK WHETHER DTC OUTPUT RECURS (DTC P0340 AND/OR P0344)
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs.
Powertrain > Engine and ECT > Clear DTCsStart the engine.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Read the DTCs.
Powertrain > Engine and ECT > Trouble CodesResult | ||||||
---|---|---|---|---|---|---|
|
B |
END |
A |
REPLACE ECM
Replace the ECM.
Click hereНажмите здесь
Result | ||
---|---|---|
|
NEXT |
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs.
Powertrain > Engine and ECT > Clear DTCsStart the engine.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Confirm that the DTC is not output again.
Powertrain > Engine and ECT > Trouble CodesResult | ||
---|---|---|
|
NEXT |
END |
REPLACE CAMSHAFT
Replace the camshaft.
Click hereНажмите здесь
Result | ||
---|---|---|
|
NEXT | Нажмите здесь |
GO TO STEP 9 |
SECURELY REINSTALL SENSOR
Securely reinstall the camshaft position sensor.
Click hereНажмите здесь
Result | ||
---|---|---|
|
NEXT | Нажмите здесь |
GO TO STEP 9 |
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result | ||
---|---|---|
|
NEXT | Нажмите здесь |
GO TO STEP 9 |
CHECK TERMINAL VOLTAGE (POWER SOURCE OF CAMSHAFT POSITION SENSOR)
Disconnect the camshaft position sensor connector.
*a |
Front view of wire harness connector (to Camshaft Position Sensor) |
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
Result | |||
---|---|---|---|
|
NG | Нажмите здесь |
OK |
CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR - ECM)
Disconnect the camshaft position sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Result | |||
---|---|---|---|
|
NG | Нажмите здесь |
OK |
CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR)
Check the camshaft position sensor installation.
OK |
---|
Sensor is installed correctly. |
*a | Normal |
*b | Abnormal |
*c | Clearance |
Result | |||
---|---|---|---|
|
NG | Нажмите здесь |
OK |
CHECK NO. 2 CRANK ANGLE SENSOR PLATE (TIMING ROTOR)
Check the NO. 2 crank angle sensor plate.
OK |
---|
Sensor plate does not have any cracks or deformation. |
Result | |||
---|---|---|---|
|
NG | Нажмите здесь |
OK |
REPLACE CAMSHAFT POSITION SENSOR
Replace the camshaft position sensor.
Click hereНажмите здесь
Result | ||
---|---|---|
|
NEXT |
CHECK WHETHER DTC OUTPUT RECURS (DTC P0340 AND/OR P0344)
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs.
Powertrain > Engine and ECT > Clear DTCsStart the engine.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Read the DTCs.
Powertrain > Engine and ECT > Trouble CodesResult | ||||||
---|---|---|---|---|---|---|
|
B |
END |
A |
ADJUST VALVE TIMING
Adjust the valve timing.
Click hereНажмите здесь
Result | ||
---|---|---|
|
NEXT | Нажмите здесь |
GO TO STEP 9 |
REPLACE NO. 2 CRANK ANGLE SENSOR PLATE
Replace the NO. 2 crank angle sensor plate.
Click hereНажмите здесь
Result | ||
---|---|---|
|
NEXT | Нажмите здесь |
GO TO STEP 9 |
SECURELY REINSTALL SENSOR
Securely reinstall the camshaft position sensor.
Click hereНажмите здесь
Result | ||
---|---|---|
|
NEXT | Нажмите здесь |
GO TO STEP 9 |
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result | ||
---|---|---|
|
NEXT | Нажмите здесь |
GO TO STEP 9 |
CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR - ECM)
Disconnect the camshaft position sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Result | |||
---|---|---|---|
|
OK | Нажмите здесь |
GO TO STEP 9 |
NG | Нажмите здесь |
GO TO STEP 24 |