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SFI SYSTEM, Diagnostic DTC:P0365, P0367, P0368, P0390, P0392, P0393

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DTC Code DTC Name
P0365 Camshaft Position Sensor "B" Circuit (Bank 1)
P0367 Camshaft Position Sensor "B" Circuit Low Input (Bank 1)
P0368 Camshaft Position Sensor "B" Circuit High Input (Bank 1)
P0390 Camshaft Position Sensor "B" Circuit (Bank 2)
P0392 Camshaft Position Sensor "B" Circuit Low Input (Bank 2)
P0393 Camshaft Position Sensor "B" Circuit High Input (Bank 2)
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DESCRIPTION

The exhaust camshaft's VVT sensor consists of a magnet and MRE (Magnetoresistive Element).

The exhaust camshaft has a sensor plate with 3 teeth on its outer circumference.

When the exhaust camshaft rotates, changes occur in the air gaps between the 3 teeth and MRE, which affects the magnet. As a result, the resistance of the MRE material fluctuates. The VVT sensor converts the exhaust camshaft rotation data to pulse signals, uses the pulse signals to determine the camshaft angle, and sends it to the ECM.

The crank angle sensor plate has 34 teeth. The pickup coil generates 34 signals for each crankshaft rotation. Based on a combination of the VVT signals and NE signal, the ECM detects the crankshaft angle. Then the ECM uses this data to control fuel injection time and injection timing. Also, based on the NE signal, the ECM detects the engine speed.

DTC No. DTC Detection Condition Trouble Area

P0365

P0390

 There is no exhaust VVT sensor signal for 5 seconds at an engine speed of 600 rpm or more (1 trip detection logic).

  • Open or short in VVT sensor for exhaust side circuit

  • VVT sensor for exhaust side

  • Exhaust camshaft

  • ECM

P0367

P0392

 Output voltage of the VVT sensor for exhaust side (bank 1, 2) is less than 0.3 V for 4 seconds (1 trip detection logic).

  • Open or short in VVT sensor for exhaust side circuit

  • VVT sensor for exhaust side

  • Exhaust camshaft

  • ECM

P0368

P0393

 Output voltage of the VVT sensor for exhaust side (bank 1, 2) is more than 4.7 V for 4 seconds (1 trip detection logic).

  • Open or short in VVT sensor for exhaust side circuit

  • VVT sensor for exhaust side

  • Exhaust camshaft

  • ECM

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WIRING DIAGRAM

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INSPECTION PROCEDURE

Tip:

  • 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 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.

  • If no problem is found through by this diagnostic troubleshooting procedure, troubleshoot the engine mechanical system.

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PROCEDURE


  1. Click here

    CHECK VVT SENSOR FOR EXHAUST SIDE (SENSOR POWER SOURCE)


    1. A01DSGRE28

      Disconnect the VVT 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 Switch Condition Specified Condition
      C22-3 (VC2) - Body ground Ignition switch ON 4.5 to 5.5 V
      C23-3 (VC2) - Body ground Ignition switch ON 4.5 to 5.5 V
      Table 1. Text in Illustration
      *A Bank 1
      *B Bank 2
      *a

      Front view of wire harness connector

      (to VVT Sensor)

    4. Reconnect the VVT sensor connector.


  2. Click here

    CHECK HARNESS AND CONNECTOR (VVT SENSOR FOR EXHAUST SIDE - ECM)


    1. Disconnect the VVT sensor connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      C22-1 (EX+) - C34-13 (EV1+) Always Below 1 Ω
      C22-2 (EX-) - C34-14 (EV1-) Always Below 1 Ω
      C23-1 (EX+) - D34-18 (EV2+) Always Below 1 Ω
      C23-2 (EX-) - C34-17 (EV2-) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      C22-1 (EX+) or C34-13 (EV1+) - Body ground Always 10 kΩ or higher
      C22-2 (EX-) or C34-14 (EV1-) - Body ground Always 10 kΩ or higher
      C23-1 (EX+) or D34-18 (EV2+) - Body ground Always 10 kΩ or higher
      C23-2 (EX-) or C34-17 (EV2-) - Body ground Always 10 kΩ or higher

    4. Reconnect the VVT sensor connector.

    5. Reconnect the ECM connector.


  3. Click here

    CHECK SENSOR INSTALLATION (VVT SENSOR FOR EXHAUST SIDE)


    1. A01DMHRE25

      Check the VVT sensor installation.

      OK
      Sensor is installed correctly.

  4. Click here

    CHECK EXHAUST CAMSHAFT (TIMING ROTOR)


    1. Check the timing rotor of the exhaust camshaft.

      OK
      Camshaft timing rotor does not have any cracks or deformation.

  5. Click here

    REPLACE VVT SENSOR FOR EXHAUST SIDE


    1. Replace the VVT sensor for exhaust side (Click here).


  6. Click here

    CHECK WHETHER DTC OUTPUT RECURS (DTC P0365, P0367, P0368, P0390, P0392 AND/OR P0393)


    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. Start the engine.

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

    7. Read the DTCs.

      Table 2. Result
      Result Proceed to
      No DTC is output A
      DTC P0365, P0367, P0368, P0390, P0392 and/or P0393 are output B
      Tip:

      If the engine does not start, replace the ECM.


  7. Click here

    CHECK HARNESS AND CONNECTOR (VVT SENSOR FOR EXHAUST SIDE - ECM)


    1. Disconnect the VVT sensor connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      C22-3 (VC2) - C34-15 (VCV1) Always Below 1 Ω
      C23-3 (VC2) - C34-16 (VCV2) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      C22-3 (VC2) or C34-15 (VCV1) - Body ground Always 10 kΩ or higher
      C23-3 (VC2) or C34-16 (VCV2) - Body ground Always 10 kΩ or higher

    4. Reconnect the VVT sensor connector.

    5. Reconnect the ECM connector.


  8. Click here

    REPLACE ECMClick here

  9. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR (VVT SENSOR FOR EXHAUST SIDE - ECM)

  10. Click here

    SECURELY REINSTALL VVT SENSOR FOR EXHAUST SIDEClick here

  11. Click here

    REPLACE EXHAUST CAMSHAFTClick here

  12. Click here

    REPLACE ECMClick here

  13. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR (VVT SENSOR FOR EXHAUST SIDE - ECM)

  14. Click here

    REPAIR COMPLETED