SFI SYSTEM, Diagnostic DTC:P034031, P034531

DTC Code DTC Name
P034031 Camshaft Position Sensor "A" Bank 1 or Single Sensor No Signal
P034531 Camshaft Position Sensor "A" Bank 2 No Signal

DESCRIPTION

Refer to DTC P034011.

Click here

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P034031 Camshaft Position Sensor "A" Bank 1 or Single Sensor No Signal A missing VVT sensor (for intake camshaft of bank 1) signal despite the crankshaft position sensor inputs being normal at an engine speed of 600 rpm or higher (1 trip detection logic).

  • Open or short in VVT sensor (for intake camshaft of bank 1) circuit

  • VVT sensor (for intake camshaft of bank 1)

  • Intake camshaft

  • Valve timing

  • ECM

 Comes on DTC stored SAE Code: P0340
P034531 Camshaft Position Sensor "A" Bank 2 No Signal A missing VVT sensor (for intake camshaft of bank 2) signal despite the crankshaft position sensor inputs being normal at an engine speed of 600 rpm or higher (1 trip detection logic).

  • Open or short in VVT sensor (for intake camshaft of bank 2) circuit

  • VVT sensor (for intake camshaft of bank 2)

  • Intake camshaft

  • Valve timing

  • ECM

 Comes on DTC stored SAE Code: P0345

Reference: Inspection using an oscilloscope.

Click here

MONITOR DESCRIPTION

If no pulse signal is transmitted by the VVT sensor (for intake camshaft) despite the camshaft rotating the ECM interprets this as a malfunction of the sensor.

MONITOR STRATEGY

Required Sensors/Components (Main) VVT sensor (for intake camshaft)
Required Sensors/Components (Related) Crankshaft position sensor
Frequency of Operation Continuous

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. Start the engine [A].

  7. Idle the engine for 10 seconds or more [B].

  8. Turn the GTS on.

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

  10. 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.

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

  12. Input the DTC: P034031 or P034531.

  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

    Tech Tips


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

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

    • If the judgment result is INCOMPLETE, perform steps [B] through [C] again.

WIRING DIAGRAM

Refer to DTC P034011.

Click here

CAUTION / NOTICE / HINT

Tech Tips


  • If no problem is found through this diagnostic troubleshooting procedure, there may be a mechanical problem with the engine.

  • Read Freeze Frame Data using the GTS. 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.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR

    B003TKCC79
    *a

    Front view of wire harness connector

    (to VVT Sensor (for Intake Camshaft))
    *b Bank 1
    *c Bank 2

    Tech Tips

    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
      F26-3 (VC) - Body ground Engine switch on (IG) 4.5 to 5.5 V
      F109-3 (VC) - Body ground Engine switch on (IG) 4.5 to 5.5 V
      F26-1 (VVR+) - Body ground Engine switch on (IG) 3.0 to 5.0 V
      F109-1 (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
      F26-3 (VC) - F26-1 (VVR+) Engine switch off 1.425 to 1.575 kΩ
      F109-3 (VC) - F109-1 (VVL+) Engine switch off 1.425 to 1.575 kΩ
      F26-2 (VVR-) - Body ground Always Below 1 Ω
      F109-2 (VVL-) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

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

    OK

  2. CHECK SENSOR INSTALLATION AND CONDUCT VISUAL INSPECTION (VVT SENSOR (FOR INTAKE CAMSHAFT))

    B003VUYC01
    *a Clearance

    1. Visually check the VVT sensor (for intake camshaft) for damage.

    2. Check the VVT sensor (for intake camshaft) installation condition.

      OK
      The VVT sensor (for intake camshaft) does not have any damage and is installed properly.
      Result
      Proceed to
      OK
      NG

    NG

    SECURELY REINSTALL VVT SENSOR (FOR INTAKE CAMSHAFT) Click here

    OK

  3. INSPECT INTAKE CAMSHAFT (TIMING ROTOR)


    1. Check the timing rotor of the intake camshaft.

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

      Tech Tips

      Perform "Inspection After Repair" after replacing the intake camshaft.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE VVT SENSOR (FOR INTAKE CAMSHAFT) Click here

    NG

    REPLACE INTAKE CAMSHAFT Click here

  4. 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
      F26-1 (VVR+) - F103-132 (VV1+) Always Below 1 Ω
      F26-2 (VVR-) - F103-133 (ETHW) Always Below 1 Ω
      F26-3 (VC) - F103-90 (VC) Always Below 1 Ω
      F109-1 (VVL+) - F103-129 (VV2+) Always Below 1 Ω
      F109-2 (VVL-) - F103-133 (ETHW) Always Below 1 Ω
      F109-3 (VC) - F103-90 (VC) Always Below 1 Ω
      F26-1 (VVR+) or F103-132 (VV1+) - Body ground and other terminals Always 10 kΩ or higher
      F26-2 (VVR-) or F103-133 (ETHW) - Body ground and other terminals Always 10 kΩ or higher
      F26-3 (VC) or F103-90 (VC) - Body ground and other terminals Always 10 kΩ or higher
      F109-1 (VVL+) or F103-129 (VV2+) - Body ground and other terminals Always 10 kΩ or higher
      F109-2 (VVL-) or F103-133 (ETHW) - Body ground and other terminals Always 10 kΩ or higher
      F109-3 (VC) or F103-90 (VC) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR