SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P022015

DTC Code DTC Name
P022015 Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Battery or Open

DESCRIPTION

Refer to DTC P012011.

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DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P022015 Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Battery or Open The output voltage of VTA2 is higher than 4.75 V, and VTA1 is less than 2.367 V for 2 seconds or more (1 trip detection logic).

  • Throttle position sensor (throttle body assembly)

  • Open in VTA2 circuit

  • Short between VCTA and VTA2 circuits

  • ECM

 Comes on DTC stored SAE Code: P0223

MONITOR DESCRIPTION

The ECM uses the throttle position sensor to monitor the throttle valve opening angle. If the VTA2 terminal voltage is higher than the threshold, the ECM will illuminate the MIL and store this DTC.

MONITOR STRATEGY

Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN

B004PE1E67

  1. Connect the GTS to the DLC3.

  2. Turn the power 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 power switch off and wait for at least 30 seconds.

  6. Turn the power switch on (IG) [A].

  7. Turn the GTS on.

  8. Put the engine in Inspection Mode (Maintenance Mode).

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  9. Start the engine.

  10. With the vehicle stationary, fully depress and release the accelerator pedal [B].

    Tech Tips

    During charge control, the engine speed is set at idle. Therefore, the engine speed will not increase when the accelerator pedal is depressed. In this case, perform step [B] after charge control has completed.

  11. Idle the engine for 2 seconds or more [C].

  12. Enter the following menus: Powertrain / Engine / Trouble Codes [D].

  13. 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.

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

  15. Input the DTC: P022015.

  16. 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 is NORMAL, the system is normal.

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

    • If the judgment result is INCOMPLETE or N/A, perform steps [B] through [D] again.

FAIL-SAFE

When this DTC is stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator, and the throttle valve is returned to a 5.5° throttle valve opening angle by the return spring. The ECM then adjusts the engine output, by controlling the fuel injection (intermittent fuel cut) and ignition timing, in accordance with the engine torque request signal sent from the hybrid vehicle control ECU, to allow the vehicle to continue being driven at a minimal speed. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.

Fail-safe mode continues until a pass condition is detected, and the power switch is turned off.

WIRING DIAGRAM

Refer to DTC P012011.

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CAUTION / NOTICE / HINT

Note


  • Vehicle Control History may be stored in the hybrid vehicle control ECU if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the freeze frame data and Vehicle Control History can be useful for troubleshooting.

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    (Select Powertrain in Health Check and then check the time stamp data.)

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  • If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.

    Click here

Tech Tips

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 (THROTTLE POSITION SENSOR - ECM)


    1. Disconnect the throttle body assembly 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
      C4-4 (VTA2) - C31-101 (VTA2) Always Below 1 Ω
      C4-5 (VC) or C31-134 (VCTA) - Body ground and other terminals Always 10 kΩ or higher
      C4-4 (VTA2) or C31-101 (VTA2) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK TERMINAL VOLTAGE (POWER SOURCE OF THROTTLE POSITION SENSOR)


    1. Disconnect the throttle body assembly connector.

    2. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      C4-5 (VC) - C4-3 (E2) Power switch on (IG) 4.5 to 5.5 V
      C4-4 (VTA2) - C4-3 (E2) Power switch on (IG) 3.0 to 5.0 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ECM Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (RESISTANCE OF ECM)


    1. Disconnect the throttle body assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C4-5 (VC) - C4-4 (VTA2) Power switch off 190 to 210 kΩ
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ECM Click here

    OK

  4. READ VALUE USING GTS (THROTTLE POSITION SENSOR NO.2 VOLTAGE)


    1. Disconnect the throttle body assembly connector.

    2. Connect the GTS to the DLC3.

    3. Turn the power switch on (IG).

    4. Turn the GTS on.

    5. Enter the following menus: Powertrain / Engine / Data List / Throttle Position Sensor No.2 Voltage.


      Powertrain > Engine > Data List
      Tester Display
      Throttle Position Sensor No.2 Voltage

    6. According to the display on the GTS, read the Data List.

      Tech Tips

      Use the snapshot function to record the value displayed or make a note of it.

    7. Turn the power switch off.

    8. Turn the GTS off.

      Result
      Proceed to
      NEXT

    NEXT

  5. READ VALUE USING GTS (THROTTLE POSITION SENSOR NO.2 VOLTAGE)

    B004QM8C06
    *a

    Front view of wire harness connector

    (to Throttle Body Assembly)

    1. Disconnect the throttle body assembly connector.

    2. Connect terminals 3 (E2) and 4 (VTA2) of the throttle body assembly connector on the wire harness side.

      Note

      If the VTA terminal voltage or the resistance between VTA2 and E2 is abnormal and terminals 3 (E2) and 4 (VTA2) of the throttle body assembly connector are connected, excessive current may flow through the circuit. In this case, do not connect the terminals.

    3. Connect the GTS to the DLC3.

    4. Turn the power switch on (IG).

    5. Turn the GTS on.

    6. Enter the following menus: Powertrain / Engine / Data List / Throttle Position Sensor No.2 Voltage.


      Powertrain > Engine > Data List
      Tester Display
      Throttle Position Sensor No.2 Voltage

    7. Compare the vehicle of the Data List item Throttle Position Sensor No.2 Voltage after the circuit is shorted to the value when the throttle body assembly connector was connected.

      Result
      Result Proceed to
      The value of Throttle Position Sensor No.2 Voltage changes from less than 4.75 V to more than 2.05 V A
      The value of Throttle Position Sensor No.2 Voltage is more than 4.75 V and does not change B

    A

    REPLACE THROTTLE BODY ASSEMBLY Click here Perform "Inspection After Repair" after replacing the throttle body assembly. Click here

    B

    REPLACE ECM Click here