ECD SYSTEM(for DPF), Diagnostic DTC:P0016, P0340, P0342, P0343

DTC Code DTC Name
P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
P0340 Camshaft Position Sensor Circuit Malfunction
P0342 Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor)
P0343 Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor)

DESCRIPTION

The camshaft position sensor (G signal) consists of a magnet and MRE (Magnetoresistive Element).

The G signal plate (timing sprocket) has one tooth on its outer circumference and is installed on the camshaft. When the camshaft rotates, the protrusion on the signal plate and the air gap on the MRE change, causing fluctuations in the magnetic field that generate a voltage in the MRE.

The NE signal plate has 34 teeth and is mounted on the crankshaft angle sensor plate. The NE signal sensor generates 34 signals for every revolution. The ECM detects the camshaft angle based on the G signal, and detects the crankshaft angle based on the NE signal.

P0016
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Idle engine for 1 second Phase deviation in crankshaft and camshaft position sensor signals with an engine speed of 650 to 3000 rpm occurs a certain number of times (1 trip detection logic).

  • Camshaft position sensor circuit

  • Camshaft position sensor

  • Crankshaft position sensor

  • Camshaft timing sprocket

  • ECM
P0340
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Crank engine for 4 seconds (STA on)

STA on:

No camshaft position sensor signal is sent to the ECM while cranking for 4 seconds or more (2 trip detection logic)

  • Camshaft position sensor circuit

  • Camshaft position sensor

  • Camshaft timing sprocket

  • ECM
Idle engine for 1 second (STA off)

STA off:

Camshaft position sensor signal is not input with an engine speed of 650 rpm or more (1 trip detection logic).
P0342
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Idle engine for 4 second Output voltage of camshaft position sensor is below 0.3 V for 4 seconds (1 trip detection logic).

  • Open or short in camshaft position sensor circuit

  • Camshaft position sensor

  • Camshaft timing sprocket

  • ECM
P0343
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Idle engine for 4 second Output voltage of camshaft position sensor is higher than 4.7 V for 4 seconds (1 trip detection logic).

  • Open or short in camshaft position sensor circuit

  • Camshaft position sensor

  • Camshaft timing sprocket

  • ECM

Tech Tips


  • If DTC P0016, P0340, P0342 and/or P0343 is stored, the following symptoms may appear:


    • Difficulty starting

    • Misfire

    • Combustion noise

    • Black smoke

    • White smoke

    • Lack of power

WIRING DIAGRAM

Refer to DTC P0335 Click here.

CAUTION / NOTICE / HINT

Note

After replacing the ECM, the new ECM needs registration (See page ) and initialization Click here.

Tech Tips


  • After performing the inspection procedure for the crankshaft position sensor, if DTC P0016 and/ or P0340 is output again, check the following items related to the camshaft position sensor.


    • Installation condition of the crankshaft position sensor

    • No. 1 crankshaft position sensor plate

    • Connection of the crankshaft position sensor connector


  • Read freeze frame data using the intelligent tester. 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


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


    1. Disconnect the camshaft position sensor connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B78-3 (VC) - B39-78 (VCG) Always Below 1 Ω
      B78-1 (G2R) - B39-80 (G2+) Always Below 1 Ω
      B78-2 (G-R) - B39-79 (G2-) Always Below 1 Ω
      B78-3 (VC) or B39-78 (VCG) - Body ground Always 10 kΩ or higher
      B78-1 (G2R) or B39-80 (G2+) - Body ground Always 10 kΩ or higher
      B78-2 (G-R) or B39-79 (G2-) - Body ground Always 10 kΩ or higher

    4. Reconnect the camshaft position sensor connector.

    5. Reconnect the ECM connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  2. INSPECT CAMSHAFT POSITION SENSOR (SENSOR POWER SOURCE)


    1. A004TOCE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Camshaft Position Sensor)

      Disconnect the camshaft position sensor connector.

    2. Turn the ignition switch to ON.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      B78-3 (VC) - Body ground Ignition switch ON 4.5 to 5.5 V

    4. Reconnect the camshaft position sensor connector.


    NG

    REPLACE ECM Click here

    OK

  3. CHECK CAMSHAFT POSITION SENSOR (SENSOR INSTALLATION)


    1. A004Q7NE45

      Check the sensor installation.

      OK
      Sensor is installed correctly.

    NG

    SECURELY REINSTALL SENSOR Click here

    OK

  4. CHECK CAMSHAFT TIMING SPROCKET


    1. Check the condition of the timing sprocket.

      OK
      Timing sprocket does not have any cracks or deformation.

    NG

    REPLACE CAMSHAFT TIMING SPROCKET Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR CIRCUIT)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Clear the DTCs Click here.

    5. Turn the ignition switch off and wait for 30 seconds or more.

    6. Start the engine and idle it for 4 seconds or more.

    7. Turn the tester on.

    8. Check the engine condition while wiggling the crankshaft position sensor wire harness for 4 seconds or more when idling.

    9. Enter the following menus: Powertrain / Engine and ECT / DTC.

    10. Read the DTCs.

      Result
      Result Proceed to
      Except below A
      There are problem such as rough idle or engine stall when wire harness is wiggles, or DTC is output* B

      Tech Tips

      *: As the DTC was stored due to a change in the contact resistance of the connector, repair or replace the wire harness or connector Click here.


    B

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

    A

  6. REPLACE CAMSHAFT POSITION SENSOR


    1. Replace the camshaft position sensor Click here.


    NEXT

  7. CHECK WHETHER DTC OUTPUT RECURS


    1. Connect the intelligent tester to the DLC3.

    2. Clear the DTCs Click here.

    3. Turn the ignition switch off for 30 seconds or more.

    4. Start the engine and idle it for 4 seconds or more.

    5. Enter the following menus: Powertrain / Engine and ECT / DTC.

      Result
      Result Proceed to
      P0016, P0340, P0342 or P0343 is output A
      No DTC is output B

    B

    END

    A

  8. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  9. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  10. SECURELY REINSTALL SENSOR


    1. Securely reinstall the sensor Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  11. REPLACE CAMSHAFT TIMING SPROCKET


    1. Replace the camshaft timing sprocket Click here.


    NEXT

  12. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the intelligent tester to the DLC3.

    2. Clear the DTCs Click here.

    3. Turn the ignition switch off for 30 seconds or more.

    4. Start the engine and idle it for 4 seconds or more.

    5. Enter the following menus: Powertrain / Engine and ECT / DTC.

    6. Confirm that the DTC is not output again.


    NEXT

    END