SFI SYSTEM, Diagnostic DTC:P2014, P2016, P2017

DTC Code DTC Name
P2014 Intake Manifold Runner Position Sensor / Switch Circuit (Bank 1)
P2016 Intake Manifold Runner Position Sensor / Switch Circuit Low (Bank 1)
P2017 Intake Manifold Runner Position Sensor / Switch Circuit High (Bank 1)

DESCRIPTION

The Tumble Control Valve (TCV) position sensor is a non-contact type sensor.

The position sensor measures the opening angle of the tumble control valve. The sensor is reliable and accurate, as it is electrically controlled by Hall-effect elements.

A01G6H0E02
DTC No. DTC Detection Connection Trouble Area
P2014 The tumble control valve position sensor output voltage flutters up and down beyond the normal operating range (less than 0.2 V, or higher than 4.8 V) for more than 0.5 seconds (open or short) (1 trip detection logic).

  • Open or short in tumble control valve position sensor circuit

  • Intake air control valve actuator (for tumble control valve)

  • ECM
P2016 The tumble control valve position sensor output voltage is less than 0.2 V for more than 0.5 seconds (short) (1 trip detection logic).

  • Short in tumble control valve position sensor circuit

  • Intake air control valve actuator (for tumble control valve)

  • ECM
P2017 The tumble control valve position sensor output voltage is higher than 4.8 V for more than 0.5 seconds (open) (1 trip detection logic).

  • Open in tumble control valve position sensor circuit

  • Intake air control valve actuator (for tumble control valve)

  • ECM

Tech Tips

When DTC P2014, P2016 or P2017 is output, use the GTS to confirm the IAC Sensor Voltage (tumble control valve position sensor output voltage). Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / IAC Sensor Voltage.

IAC Sensor Voltage Malfunction
0.2 V or less

  • IAC1 circuit shorted

  • VCIA circuit open
4.8 V or higher

  • VCIA and IAC1 circuits shorted

  • IAC1 circuit open

  • EIA1 circuit open

MONITOR DESCRIPTION

The ECM IAC1 terminal voltage increases in correlation with the opening angle of the tumble control valve. When the tumble control valve is fully closed, approximately 0.94 V is applied to the IAC1 terminal. When the tumble control valve is fully open, approximately 3.4 V is applied to the IAC1 terminal.

When the output voltage of the IAC1 terminal deviates from the standard range, the ECM determines that a malfunction has occurred in the position sensor and stores a DTC.

MONITOR STRATEGY

Required Sensors/Components Intake air control valve actuator (for tumble control valve)
Frequency of Operation Continuous

COMPONENT OPERATING RANGE

Tumble control valve position sensor voltage 0.2 to 4.8 V

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG) and turn the GTS on.

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

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

  5. Turn the engine switch on (IG) and turn the GTS on.

  6. Wait 0.5 seconds or more.

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

  8. 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.

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

  10. Input the DTC: P2014, P2016 or P2017.

  11. 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
    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

Refer to DTC P2004 Click here.

INSPECTION PROCEDURE

Tech Tips


  • If DTCs relating to different systems which share terminal EIA1 as their ground are stored simultaneously, there may be an open circuit between terminal EIA1 and ground.

  • 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. PERFORM ACTIVE TEST USING GTS (CONTROL THE IAC DUTY RATIO)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG) and turn the GTS on.

    3. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the IAC Duty Ratio / All Data / IAC Sensor Voltage.

    4. Check the value of IAC Sensor Voltage while changing Control the IAC Duty Ratio from -100 to 100% (or from 100 to -100%) using the GTS.

      OK
      The value of IAC Sensor Voltage remains between 0.2 and 4.8 V while Control the IAC Duty Ratio is changed from -100 to 100% (or from 100 to -100%).
      HINT

      Control the IAC Duty Ratio

      Operation

      IAC Sensor Voltage

      (Normal)

      		 Suspected Trouble Area

      • IAC1 circuit shorted

      • VCIA circuit open

      • VCIA and IAC1 circuits shorted

      • IAC1 circuit open

      • EIA1 circuit open

      		 Sensor malfunction
      -100% 0.2 to 1.4 V Remains below 0.2 V Remains higher than 4.8 V Other than the voltage in the 2 columns on the left
      100% 3.2 to 4.8 V Remains below 0.2 V Remains higher than 4.8 V

    NG

    CHECK HARNESS AND CONNECTOR (INTAKE AIR CONTROL VALVE ACTUATOR - ECM) Click here

    OK

  2. CHECK WHETHER DTC OUTPUT RECURS (DTC P2014, P2016 AND/OR P2017)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG) and turn the GTS on.

    3. Clear the DTCs Click here.

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

    5. Turn the engine switch on (IG).

    6. Turn the GTS on.

    7. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

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

    9. Read the DTCs.

      Result
      Result Proceed to
      DTC P2014, P2016 and/or P2017 is output A
      DTC is not output B

    B

    CHECK FOR INTERMITTENT PROBLEMS Click here

    A

    REPLACE ECM Click here

  3. CHECK HARNESS AND CONNECTOR (INTAKE AIR CONTROL VALVE ACTUATOR - ECM)


    1. Disconnect the intake air control valve actuator 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
      a4-3 (VDD) - D70-130 (VCIA) Always Below 1 Ω
      a4-1 (OUT) - D70-131 (IAC1) Always Below 1 Ω
      a4-2 (GND) - D70-129 (EIA1) Always Below 1 Ω
      a4-3 (VDD) or D70-130 (VCIA) - Body ground Always 10 kΩ or higher
      a4-1 (OUT) or D70-131 (IAC1) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK TERMINAL VOLTAGE (POWER SOURCE OF INTAKE AIR CONTROL VALVE ACTUATOR)

    A01G4Y7E07
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Intake Air Control Valve Actuator)

    1. Disconnect the intake air control valve actuator 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
      a4-3 (VDD) - Body ground Engine switch on (IG) 4.5 to 5.5 V

    NG

    REPLACE ECM Click here

    OK

  5. REPLACE INTAKE AIR CONTROL VALVE ACTUATOR (FOR TUMBLE CONTROL VALVE)


    1. Replace the intake air control valve actuator (for tumble control valve) Click here.


    NEXT

  6. CHECK WHETHER DTC OUTPUT RECURS (DTC P2014, P2016 AND/OR P2017)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG) and turn the GTS on.

    3. Clear the DTCs Click here.

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

    5. Turn the engine switch on (IG).

    6. Turn the GTS on.

    7. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

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

    9. Read the DTCs.

      Result
      Result Proceed to
      DTC P2014, P2016 and/or P2017 is output A
      DTC is not output B

    B

    END

    A

    REPLACE ECM Click here