Dtc P1340 Camshaft Position Sensor A (Bank 1 Sensor 2)

Engine Hybrid System. Land Cruiser. Urj200, 202 Grj200 Vdj200
1Ur-Fe Engine Control. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

MONITOR DESCRIPTION

CONFIRMATION DRIVING PATTERN

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT CAMSHAFT POSITION SENSOR (SENSOR POWER SOURCE)

CHECK HARNESS AND CONNECTOR (ECM - CAMSHAFT POSITION SENSOR)

CHECK SENSOR INSTALLATION

INSPECT CAMSHAFT TIMING GEAR ASSEMBLY (SENSOR PLATE TOOTH)

REPLACE CAMSHAFT POSITION SENSOR

CHECK WHETHER DTC OUTPUT RECURS

DTC P1340 Camshaft Position Sensor "A" (Bank 1 Sensor 2)

DTC P1342 Camshaft Position Sensor "A" Low Input (MRE)

DTC P1343 Camshaft Position Sensor "A" High Input (MRE)


DESCRIPTION

The camshaft position sensor (G signal) consists of a magnet and MRE (Magnetoresistive Element).
The camshaft timing gear (LH) has 3 teeth on its outer circumference. When the camshaft timing gear rotates, the air gap between the protrusion on the gear and the MRE changes. The change affects the magnetic field and results in changes in the resistance of the MRE.
The crankshaft angle sensor rotor has 34 teeth and is mounted on the crankshaft. The crankshaft position sensor generates 34 signals per crankshaft revolution. The ECM uses the G2 signal to distinguish between the cylinders, and uses the NE signal to detect the crankshaft position and engine speed.

DTC No.
DTC Detection Condition
Trouble Area
P1340
No camshaft position sensor signal is sent to the ECM during cranking (2 trip detection logic).
  1. Open or short in camshaft position sensor circuit
  2. Camshaft position sensor
  3. Camshaft timing gear assembly (LH)
  4. ECM
No camshaft position sensor signal is sent to the ECM with the engine speed at 600 rpm or more, or the camshaft position and crankshaft position phases are misaligned (1 trip detection logic).
P1342
Output voltage of the camshaft position sensor is below 0.3 V for 4 seconds (1 trip detection logic).
P1343
Output voltage of the camshaft position sensor is higher than 4.7 V for 4 seconds (1 trip detection logic).

  1. Land Cruiser. Urj200, 202 Grj200 Vdj200.1Ur-Fe Engine Control.Sfi System. Dtc P1340 Camshaft Position Sensor A (Bank 1 Sensor 2)
    Reference: Inspection using an oscilloscope.

    Standard:

    for RHD
    Tester Connection
    		Tool Setting
    		Condition
    		Specified Condition
    C46-110 (NE+) - C46-111 (NE-)
    		5 V/DIV., 20 msec./DIV.
    		Cranking or idling
    		The correct waveform is as shown
    C46-90 (G2) - C46-89 (G2-)
    		5 V/DIV., 20 msec./DIV.
    		Cranking or idling
    		The correct waveform is as shown

    for LHD
    Tester Connection
    		Tool Setting
    		Condition
    		Specified Condition
    C45-110 (NE+) - C45-111 (NE-)
    		5 V/DIV., 20 msec./DIV.
    		Cranking or idling
    		The correct waveform is as shown
    C45-90 (G2) - C45-89 (G2-)
    		5 V/DIV., 20 msec./DIV.
    		Cranking or idling
    		The correct waveform is as shown
    HINT:
    G2 is the camshaft position sensor signal, and NE is the crankshaft position sensor signal.

MONITOR DESCRIPTION

If no signal is transmitted by the camshaft position sensor despite the engine running, or the rotations of the camshaft and crankshaft are not synchronized, the ECM interprets this as a malfunction of the sensor.
Also, when the sensor output voltage remains below 0.3 V, or higher than 4.7 V for more than 4 seconds, the ECM stores a DTC.

CONFIRMATION DRIVING PATTERN

  1. Start the engine and run it at idle for 10 seconds or more.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.1Ur-Fe Engine Control.Sfi System. Dtc P1340 Camshaft Position Sensor A (Bank 1 Sensor 2)


INSPECTION PROCEDURE

HINT:
Read freeze frame data using the GTS. Freeze frame data records the engine conditions 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, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
1.INSPECT CAMSHAFT POSITION SENSOR (SENSOR POWER SOURCE)
Land Cruiser. Urj200, 202 Grj200 Vdj200.1Ur-Fe Engine Control.Sfi System. Dtc P1340 Camshaft Position Sensor A (Bank 1 Sensor 2)

  1. Disconnect the camshaft position sensor connector.

  1. Turn the engine switch on (IG).

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    C99-3 (VC) - Body ground
    		Engine switch on (IG)
    		4.5 to 5.0 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Camshaft Position Sensor)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.CHECK HARNESS AND CONNECTOR (ECM - CAMSHAFT POSITION SENSOR)

  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:

    for RHD
    Tester Connection
    		Condition
    		Specified Condition
    C99-1 (G2) - C46-90 (G2)
    		Always
    		Below 1 Ω
    C99-2 (G-) - C46-89 (G2-)
    		Always
    		Below 1 Ω
    C99-1 (G2) or C46-90 (G2) - Body ground
    		Always
    		10 kΩ or higher
    C99-2 (G-) or C46-89 (G2-) - Body ground
    		Always
    		10 kΩ or higher

    for LHD
    Tester Connection
    		Condition
    		Specified Condition
    C99-1 (G2) - C45-90 (G2)
    		Always
    		Below 1 Ω
    C99-2 (G-) - C45-89 (G2-)
    		Always
    		Below 1 Ω
    C99-1 (G2) or C45-90 (G2) - Body ground
    		Always
    		10 kΩ or higher
    C99-2 (G-) or C45-89 (G2-) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK SENSOR INSTALLATION
Land Cruiser. Urj200, 202 Grj200 Vdj200.1Ur-Fe Engine Control.Sfi System. Dtc P1340 Camshaft Position Sensor A (Bank 1 Sensor 2)

  1. Check the camshaft position sensor installation.

    OK:
    The camshaft position sensor is installed properly.


NG
SECURELY REINSTALL SENSOR (Click here)
OK


4.INSPECT CAMSHAFT TIMING GEAR ASSEMBLY (SENSOR PLATE TOOTH)

  1. Check the teeth of the sensor plate.

    OK:
    Sensor plate teeth do not have any cracks or deformation.


NG
REPLACE CAMSHAFT TIMING GEAR ASSEMBLY (Click here)
OK


5.REPLACE CAMSHAFT POSITION SENSOR

  1. Replace the camshaft position sensor (Click here).


NEXT


6.CHECK WHETHER DTC OUTPUT RECURS

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

  1. Clear DTCs (Click here).

  1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

  1. Read DTCs.

    Result
    Result
    		Proceed to
    No DTC is output
    		A
    P1340, P1342 and/or P1343 is output
    		B
    HINT:
    If the engine does not start, replace the ECM.


B
REPLACE ECM (Click here)
A

END