Dtc P0340 Camshaft Position Sensor Circuit Malfunction. Corolla Auris

Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Система Управления Двигателем 2Zr-Fe. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0340, P0342 OR P0343)

CHECK CAMSHAFT POSITION SENSOR FOR INTAKE CAMSHAFT (SENSOR POWER SOURCE)

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

CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR FOR INTAKE CAMSHAFT)

CHECK INTAKE CAMSHAFT

REPLACE CAMSHAFT POSITION SENSOR FOR INTAKE CAMSHAFT

CHECK WHETHER DTC OUTPUT RECURS

ADJUST VALVE TIMING

CHECK WHETHER DTC OUTPUT RECURS

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

DTC P0340 Camshaft Position Sensor Circuit Malfunction

DTC P0342 Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor)

DTC P0343 Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor)


DESCRIPTION

The intake camshaft's Variable Valve Timing (VVT) sensor (G signal) consists of a magnet and MRE element.
The VVT camshaft drive gear has a sensor plate with 3 teeth on its outer circumference. When the gear rotates, changes occur in the air gaps between the sensor plate and pickup coil, which affects the magnet. As a result, the resistance of the MRE material fluctuates. The camshaft position sensor converts the gear rotation data to pulse signals, and uses the pulse signals to determine the camshaft angle, which it sends to the ECM. Then the ECM uses this data to the control fuel injection time and injection timing.
The crankshaft position sensor plate has 34 teeth. The pickup coil generates 34 signals for each engine revolution. Based on the G signal and actual crankshaft angle, the ECM detects the normal crankshaft angle. Also, based on the NE signal, the ECM detects the engine speed.

DTC No.
DTC Detection Condition
Trouble Area
P0340
  1. Input voltage to ECM remains 0.3 V or less, or 4.7 V or higher for more than 5 seconds, when 2 more seconds have elapsed after turning engine switch on (IG)
    (1 trip detection logic)
  2. No camshaft position sensor signal to ECM during cranking
    (2 trip detection logic)
  1. Open or short in camshaft position sensor for intake camshaft circuit
  2. Camshaft position sensor for intake camshaft
  3. Camshaft timing gear for intake camshaft
  4. Jumped tooth of timing chain
  5. ECM
P0342
Output voltage of camshaft position sensor 0.3 V or less is for 5 seconds
(1 trip detection logic)
  1. Open or short in camshaft position sensor for intake camshaft circuit
  2. Camshaft position sensor for intake camshaft
  3. Camshaft timing gear for intake camshaft
  4. Jumped tooth of timing chain
  5. ECM
P0343
Output voltage of camshaft position sensor 4.7 V or more is for 5 seconds
(1 trip detection logic)
  1. Open or short in camshaft position sensor for intake camshaft circuit
  2. Camshaft position sensor for intake camshaft
  3. Camshaft timing gear for intake camshaft
  4. Jumped tooth of timing chain
  5. ECM

WIRING DIAGRAM

Refer to DTC P0335 (See page Нажмите здесь).

INSPECTION PROCEDURE

УКАЗАНИЕ:
  1. 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 running or stopped, 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.
  2. If no problem is found through this diagnostic troubleshooting procedure, troubleshoot the engine mechanical system.
1.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0340, P0342 OR P0343)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch on (IG).

  1. Turn the tester on.

  1. Select the following menu items: Powertrain / Engine and ECT / DTC.

  1. Read the DTCs.

    Result:

    Result
    		Proceed to
    DTC P0340, P0342 or P0343 is output
    		A
    DTC P0340, P0342 or P0343 and other DTCs are output
    		B
    УКАЗАНИЕ:
    If any DTCs other than P0340, P0342 or P0343 are output, troubleshoot those DTCs first.


B
GO TO DTC CHART (Нажмите здесь)
A


2.CHECK CAMSHAFT POSITION SENSOR FOR INTAKE CAMSHAFT (SENSOR POWER SOURCE)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 2Zr-Fe.Система Sfi. Dtc P0340 Camshaft Position Sensor Circuit Malfunction

  1. Disconnect the camshaft position sensor connector.

  1. Turn the ignition switch on (IG).

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

    Standard voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    B21-3 (VC) - Body ground
    		Ignition switch on (IG)
    		4.5 to 5.0 V

  1. Reconnect the camshaft position sensor connector.



NG
Перейдите к шагу 10
OK


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


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 2Zr-Fe.Система Sfi. Dtc P0340 Camshaft Position Sensor Circuit Malfunction

  1. Disconnect the camshaft position sensor connector.

  1. Disconnect the ECM connector.

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

    Standard resistance (Check for open):
    Tester Connection
    		Condition
    		Specified Condition
    B21-1 (VV1+) - B31-99 (G2+)
    		Always
    		Below 1 Ω
    B21-2 (VV1-) - B31-98 (G2-)
    		Always
    		Below 1 Ω
    Standard resistance (Check for short):
    Tester Connection
    		Condition
    		Specified Condition
    B21-1 (VV1+) or B31-99 (G2+) - Body ground
    		Always
    		10 kΩ or higher
    B21-2 (VV1-) or B31-98 (G2-) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the camshaft position sensor connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (CAMSHAFT POSITION SENSOR FOR INTAKE CAMSHAFT - ECM)
OK


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


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 2Zr-Fe.Система Sfi. Dtc P0340 Camshaft Position Sensor Circuit Malfunction

  1. Check the camshaft position sensor installation.

    OK:
    Sensor is installed correctly.


NG
SECURELY REINSTALL CAMSHAFT POSITION SENSOR FOR INTAKE CAMSHAFT (Нажмите здесь)
OK


5.CHECK INTAKE CAMSHAFT

  1. Check the teeth of the intake camshaft.

    OK:
    Camshaft teeth do not have any cracks or deformation.


NG
REPLACE INTAKE CAMSHAFT (Нажмите здесь)
OK


6.REPLACE CAMSHAFT POSITION SENSOR FOR INTAKE CAMSHAFT

  1. Replace intake camshaft position sensor (See page Нажмите здесь).


NEXT


7.CHECK WHETHER DTC OUTPUT RECURS

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch on (IG).

  1. Turn the tester on.

  1. Clear the DTCs (See page Нажмите здесь).

  1. Start the engine.

  1. Select the following menu items: Powertrain / Engine and ECT / DTC.

  1. Read the DTCs.

    Result:

    Result
    		Proceed to
    DTC is not output
    		A
    DTC P0340, P0342 or P0343 is output
    		B
    УКАЗАНИЕ:
    If the engine does not start, replace the ECM.


B
REPLACE ECM (Нажмите здесь)
A


8.ADJUST VALVE TIMING
УКАЗАНИЕ:
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 (See page Нажмите здесь).

NEXT


9.CHECK WHETHER DTC OUTPUT RECURS

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch on (IG).

  1. Turn the tester on.

  1. Clear the DTCs (See page Нажмите здесь).

  1. Start the engine.

  1. Select the following menu items: Powertrain / Engine and ECT / DTC.

  1. Read the DTCs.

    Result:

    Result
    		Proceed to
    DTC is not output
    		A
    DTC P0340, P0342 or P0343 are output
    		B
    УКАЗАНИЕ:
    If the engine does not start, replace the ECM.


B
REPLACE ECM (Нажмите здесь)
A

END

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


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 2Zr-Fe.Система Sfi. Dtc P0340 Camshaft Position Sensor Circuit Malfunction

  1. Disconnect the camshaft position sensor connector.

  1. Disconnect the ECM connector.

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

    Standard resistance (Check for open):
    Tester Connection
    		Specified Condition
    B21-3 (VC) - B31-70 (VCV1)
    		Below 1 Ω
    Standard resistance (Check for short):
    Tester Connection
    		Specified Condition
    B21-3 (VC) or B31-70 (VCV1) - Body ground
    		10 kΩ or higher

  1. Reconnect the camshaft position sensor connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (CAMSHAFT POSITION SENSOR FOR INTAKE CAMSHAFT - ECM)
OK

REPLACE ECM (Нажмите здесь)