SFI SYSTEM, Diagnostic DTC:P034011, P034015, P034511, P034515

DESCRIPTION

The VVT sensor (for intake camshaft) (VV1, VV2 signal) consists of a magnet and MRE (Magneto Resistance Element).

The intake camshaft has a timing rotor for the VVT sensor. When the intake camshaft rotates, changes occur in the air gaps between the timing rotor and MRE, which affects the magnetic field. As a result, the resistance of the MRE material fluctuates. The VVT sensor converts the camshaft rotation data to pulse signals, uses the pulse signals to determine the camshaft angle, and sends it to the ECM. Then the ECM uses this data to control fuel injection duration, injection timing and the Variable Valve Timing (VVT) system.

• 

  Table 1.

  *a	5 V/DIV.
  *b	20 ms./DIV.

  Reference: Inspection using an oscilloscope.

  Tip:
  

  • The correct waveform is as shown.

  • VV1 stands for the VVT sensor (for intake camshaft of bank 1) signal, and VV2 stands for the VVT sensor (for intake camshaft of bank 2) signal.

  ECM Terminal Name	CH1: Between VV1+ and VV1- CH2: Between VV2+ and VV2-
  Tester Range	5 V/DIV., 20 ms./DIV.
  Condition	Idling

MONITOR DESCRIPTION

If the output voltage transmitted by the VVT sensor (for intake camshaft) remains low or high the rotation of the camshaft and the crankshaft is not synchronized, the ECM interprets this as a malfunction in the sensor circuit illuminates the MIL and stores a DTC.

MONITOR STRATEGY

CONFIRMATION DRIVING PATTERN

1. Connect the GTS to the DLC3.

2. Turn the engine switch on (IG).

3. Turn the GTS on.

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

5. Turn the engine switch off and wait for at least 30 seconds.

6. Turn the engine switch on (IG).

7. Turn the GTS on.

8. Wait for 5 seconds or more.

9. Enter the following menus: Powertrain / Engine / Trouble Codes.

10. Read the pending DTCs.

    Tip:
    

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

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

11. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

12. Input the DTC: P034011, P034015, P034511 or P034515.

13. Check the DTC judgment result.

    GTS Display	Description
    NORMAL	DTC judgment completed System normal
    ABNORMAL	DTC judgment completed System abnormal
    INCOMPLETE	DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions

    Tip:
    

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

    • If the judgment result is ABNORMAL, the system is malfunctioning.

CAUTION / NOTICE / HINT

PROCEDURE

1. *a Front view of wire harness connector (to VVT Sensor (for Intake Camshaft)) *b Bank 1 *c Bank 2
   Click here

   CHECK HARNESS AND CONNECTOR

   Tip:

   Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.

   
   

   1. Disconnect the VVT sensor (for intake camshaft) connector.

   2. Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition C16-3 (VC) - Body ground Engine switch on (IG) 4.5 to 5.5 V C19-3 (VC) - Body ground Engine switch on (IG) 4.5 to 5.5 V C16-1 (VVR+) - Body ground Engine switch on (IG) 3.0 to 5.0 V C19-1 (VVL+) - Body ground Engine switch on (IG) 3.0 to 5.0 V

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition C16-3 (VC) - C16-1 (VVR+) Engine switch off 1.425 to 1.575 kΩ C19-3 (VC) - C19-1 (VVL+) Engine switch off 1.425 to 1.575 kΩ C16-2 (VVR-) - Body ground Always Below 1 Ω C19-2 (VVL-) - Body ground Always Below 1 Ω

      Result
      Proceed to OK NG

   
   
   • OK

     REPLACE CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT)Click here

   • NGClick here
2. Click here

   CHECK HARNESS AND CONNECTOR (VVT SENSOR (FOR INTAKE CAMSHAFT) - ECM)

   
   

   1. Disconnect the VVT sensor (for intake camshaft) 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 C16-1 (VVR+) - C96-132 (VV1+) Always Below 1 Ω C16-2 (VVR-) - C96-100 (VV1-) Always Below 1 Ω C16-3 (VC) - C96-99 (VCV1) Always Below 1 Ω C19-1 (VVL+) - C96-129 (VV2+) Always Below 1 Ω C19-2 (VVL-) - C96-97 (VV2-) Always Below 1 Ω C19-3 (VC) - C96-98 (VCV2) Always Below 1 Ω C16-1 (VVR+) or C96-132 (VV1+) - Body ground and other terminals Always 10 kΩ or higher C16-2 (VVR-) or C96-100 (VV1-) - Body ground and other terminals Always 10 kΩ or higher C16-3 (VC) or C96-99 (VCV1) - Body ground and other terminals Always 10 kΩ or higher C19-1 (VVL+) or C96-129 (VV2+) - Body ground and other terminals Always 10 kΩ or higher C19-2 (VVL-) or C96-97 (VV2-) - Body ground and other terminals Always 10 kΩ or higher C19-3 (VC) or C96-98 (VCV2) - Body ground and other terminals Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   
   • OK

     REPLACE ECMClick here

   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR