SFI SYSTEM (w/ Dual VVT-i), Diagnostic DTC:P0365, P0367, P0368

DESCRIPTION

The exhaust camshaft's Variable Valve Timing (VVT) sensor (EV1 signal) consists of a magnet and MRE (Magneto-Resistive Element).

The exhaust camshaft has 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 magnetic field. As a result, the resistance of the MRE material fluctuates. The camshaft position sensor converts the exhaust camshaft rotation data to pulse signals, uses the pulse signals to determine the camshaft angle, and sends the camshaft angle data to the ECM.

• 

  Reference: Inspection using an oscilloscope

  Tech Tips

  
  

  • The correct waveforms are as shown.

  • VV1 stands for the camshaft position sensor (for intake side) signal and EV1 stands for the camshaft position sensor (for exhaust side) signal.

    Terminal No. (Symbol)	Tool Setting	Condition
    D116-82 (VV1+) - D116-115 (VV1-)	5 V/DIV, 20 ms/DIV	Idling
    D116-80 (EV1+) - D116-112 (EV1-)	5 V/DIV, 20 ms/DIV	Idling

MONITOR DESCRIPTION

If no signal is transmitted by the camshaft position sensor despite the camshaft revolving, or the rotations of the camshaft and crankshaft are not synchronized, the ECM interprets this as a malfunction of the sensor.

MONITOR STRATEGY

CONFIRMATION DRIVING PATTERN

1. Connect the GTS to the DLC3.

2. Turn the ignition switch to ON and turn the GTS on.

3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

4. Turn the ignition switch off and wait for at least 30 seconds.

5. Turn the ignition switch to ON and turn the GTS on.

6. Start the engine.

7. Idle the engine for 10 seconds or more.

8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

9. Read the pending DTCs.

   Tech Tips

   
   

   • If a pending DTC is output, the system is malfunctioning.

   • If a pending DTC is not output, perform the following procedure.

10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

11. Input the DTC: P0365, P0367 or P0368.

12. Check the DTC judgment result.

    GTS Display	Description
    NORMAL	DTC judgment completed System normal
    ABNORMAL	DTC judgment completed System abnormal
    INCOMPLETE	DTC judgment completed Perform driving pattern after confirming DTC enabling conditions
    N/A	Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    Tech Tips

    
    

    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform the Confirmation Driving Pattern and check the DTC judgment result again.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK TERMINAL VOLTAGE (SENSOR POWER SOURCE)

   
   
   1. 

      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 Switch Condition Specified Condition D112-3 (VC2) - Body ground Ignition switch ON 4.5 to 5.0 V

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

2. 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 D112-1 (VVE+) - D116-80 (EV1+) Always Below 1 Ω D112-2 (VVE-) - D116-112 (EV1-) Always Below 1 Ω D112-1 (VVE+) or D116-80 (EV1+) - Body ground Always 10 kΩ or higher D112-2 (VVE-) or D116-112 (EV1-) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

3. CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR FOR EXHAUST SIDE)

   
   

   1. 

      Check the camshaft position sensor installation.

      OK
      Sensor is installed correctly.

   
   

   NG

   SECURELY REINSTALL SENSOR Click here

   OK

4. CHECK EXHAUST CAMSHAFT

   
   

   1. Check the teeth of the camshaft.

      OK
      Teeth do not have any cracks or deformation.

      Tech Tips

      Perform "Inspection After Repair" after replacing the exhaust camshaft Click here.

   
   

   NG

   REPLACE EXHAUST CAMSHAFT 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.

   2. Turn the ignition switch to ON.

   3. Turn the GTS on.

   4. Clear the DTCs Click here.

   5. Start the engine.

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

   7. Read the DTCs.

      Result

      Result	Proceed to
      No DTC is output	A
      P0365, P0367 or P0368 is output	B

      Tech Tips

      If the engine does not start, replace the ECM.

   
   

   B

   REPLACE ECM Click here

   A

   END