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

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)

DESCRIPTION

The exhaust camshaft's VVT sensor consists of a magnet and MRE (Magneto Resistive 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.

DTC No. DTC Detection Condition Trouble Area

P0365

P0390

Input voltage to ECM remains 0.3 V or less, or 4.7 V or higher for more than 5 seconds, when 2 or more seconds have elapsed after engine switch is turned on (IG)

(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 VVT sensor for exhaust side (bank 1, 2) 0.3 V or less 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 VVT sensor for exhaust side (bank 1, 2) 4.7 V or more 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
A01CFK3E03

Reference: Inspection using an oscilloscope

Tech Tips


  • The correct waveform is as shown.

  • The wavelength becomes shorter as the engine speed increases.

  • EV1+ and EV2+ stand for the VVT sensor for exhaust side signal, and NE+ stands for the crankshaft position sensor signal.

    Item Content
    Terminal

    NE+ - NE-

    EV1+ - EV1-

    EV2+ - EV2-
    Equipment Setting 5 V/DIV., 20 msec./DIV.
    Condition Idling with warm engine

WIRING DIAGRAM

Refer to DTC P0335 Click here.

INSPECTION PROCEDURE

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 be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

PROCEDURE


  1. CHECK VVT SENSOR FOR EXHAUST SIDE (SENSOR POWER SOURCE)


    1. A01CFLOE02

      Disconnect the VVT sensor connectors.

    2. Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      D33-3 (VC2) - Body ground Engine switch on (IG) 4.5 to 5.5 V
      D14-3 (VC2) - Body ground Engine switch on (IG) 4.5 to 5.5 V

    4. Reconnect the VVT sensor connectors.


    NG

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

    OK

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


    1. Disconnect the VVT sensor connectors.

      A01CBGEE03

    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
      D33-1 (EX+) - D1-68 (EV1+) Always Below 1 Ω
      D33-2 (EX-) - D1-91 (EV1-) Always Below 1 Ω
      D14-1 (EX+) - D1-66 (EV2+) Always Below 1 Ω
      D14-2 (EX-) - D1-89 (EV2-) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      D33-1 (EX+) or D1-68 (EV1+) - Body ground Always 10 kΩ or higher
      D33-2 (EX-) or D1-91 (EV1-) - Body ground Always 10 kΩ or higher
      D14-1 (EX+) or D1-66 (EV2+) - Body ground Always 10 kΩ or higher
      D14-2 (EX-) or D1-89 (EV2-) - Body ground Always 10 kΩ or higher

    4. Reconnect the VVT sensor connectors.

    5. Reconnect the ECM connector.


    NG

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

    OK

  3. CHECK SENSOR INSTALLATION (VVT SENSOR FOR EXHAUST SIDE)


    1. A01CFPDE17

      Check the VVT sensor installation.

      OK
      Sensor is installed correctly.

    NG

    REPAIR OR REPLACE VVT SENSOR FOR EXHAUST SIDE Click here

    OK

  4. CHECK EXHAUST CAMSHAFT


    1. Check the teeth of the signal plate.

      OK
      Signal plate teeth do not have any cranks or deformation.

    NG

    REPLACE EXHAUST CAMSHAFT Click here

    OK

  5. REPLACE VVT SENSOR FOR EXHAUST SIDE


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


    NEXT

  6. 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 engine switch on (IG).

    3. Turn the tester on.

    4. Clear the DTCs Click here.

    5. Start the engine.

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

    7. Read the DTCs.

      Result
      Result Proceed to
      DTC is not output A
      DTC P0365, P0367, P0368, P0390, P0392 and/or P0393 are output B

      Tech Tips

      If the engine does not start, replace the ECM.


    B

    REPLACE ECM Click here

    A

    END

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


    1. Disconnect the VVT sensor connectors.

      A01CBGEE04

    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
      D33-3 (VC2) - D1-114 (VCE1) Always Below 1 Ω
      D14-3 (VC2) - D1-112 (VCE2) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      D33-3 (VC2) or D1-114 (VCE1) - Body ground Always 10 kΩ or higher
      D14-3 (VC2) or D1-112 (VCE2) - Body ground Always 10 kΩ or higher

    4. Reconnect the VVT sensor connectors.

    5. Reconnect the ECM connector.


    NG

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

    OK

    REPLACE ECM Click here