SFI SYSTEM, Diagnostic DTC:P2119

DTC Code DTC Name
P2119 Throttle Actuator Control Throttle Body Range / Performance

DESCRIPTION

The Electronic Throttle Control System (ETCS) is composed of the throttle actuator, Throttle Position (TP) sensor, hybrid vehicle control ECU, and ECM. The ECM operates the throttle actuator to regulate the throttle valve in response to driver inputs. The TP sensor detects the opening angle of the throttle valve, and provides the ECM with feedback so that the throttle valve can be appropriately controlled by the ECM.

DTC No. DTC Detection Condition Trouble Area
P2119

Throttle valve opening angle continues to vary greatly from target opening angle

(1 trip detection logic)

  • ETCS

  • ECM

MONITOR DESCRIPTION

The ECM determines the actual opening angle of the throttle valve from the TP sensor signal. The actual opening angle is compared to the target opening angle commanded by the ECM. If the difference between these two values is outside the standard range, the ECM interprets this as a malfunction in the ETCS. The ECM then illuminates the MIL and sets the DTC.

FAIL-SAFE

When this DTC, as well as other DTCs relating to ETCS (Electronic Throttle Control System) malfunctions, is set, 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 7° throttle 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 accelerator pedal opening angle, to allow the vehicle to continue running 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 then turned off.

WIRING DIAGRAM

Refer to DTC P2102 Click here.

INSPECTION PROCEDURE

Tech Tips

Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. 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 ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2119)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the tester ON.

    4. Enter the following menus: Powertrain / Engine and ECT / DTC.

    5. Read DTCs.

      Result
      Display (DTC Output) Proceed to
      P2119 A
      P2119 and other DTCs B

      Tech Tips

      If any DTCs other than P2119 are output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  2. READ VALUE USING INTELLIGENT TESTER (THROTTLE POSITION)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the tester on.

    4. Clear DTCs Click here.

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

    6. Turn the power switch on (IG).

    7. Turn the tester on.

    8. Put the engine in inspection mode Click here.

    9. Enter the following menus: Powertrain / Engine / Data List / All Data / Throttle Position No.1 and Throttle Position Command.

    10. Read the values displayed on the tester while fully depressing and releasing the accelerator pedal quickly.

      Result
      Result Proceed to
      Throttle Position No.1 does not change A
      Throttle Position No.1 changes even a little B

      Tech Tips

      When a DTC is output, the system changes to fail-safe mode. Therefore, only use the data up until the time the DTC is stored for confirmation.


    B

    INSPECT THROTTLE BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE) Click here

    A

  3. INSPECT THROTTLE BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR)


    1. Inspect the throttle body assembly Click here.


    NG

    REPLACE THROTTLE BODY ASSEMBLY Click here

    OK

  4. INSPECT THROTTLE BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE)


    1. As the DTC was stored due to a change in the contact resistance of the connector, repair or replace the wire harness or connector Click here.

      OK
      Throttle valve is not contaminated with foreign objects and moves smoothly.

    NG

    REPLACE THROTTLE BODY ASSEMBLY Click here

    OK

  5. READ VALUE USING INTELLIGENT TESTER (THROTTLE POSITION)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the tester on.

    4. Clear DTCs Click here.

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

    6. Turn the power switch on (IG).

    7. Turn the tester on.

    8. Enter the following menus: Powertrain / Engine / Data List / All Data / Throttle Position No.1, Throttle Position No.2 and Throttle Position Command.

    9. Read the values displayed on the tester while wiggling the ECM wire harness.

    10. Enter the following menus: Powertrain / Engine / DTC.

    11. Read the DTCs.

      Result
      Result Proceed to
      Value in Data List changes when wire harness is wiggled, or DTC is output A
      Other than above B

      Tech Tips

      As the DTC was stored due to a change in the contact resistance of the connector, repair or replace the wire harness or connector Click here.


    B

    CHECK WHETHER DTC OUTPUT RECURS (DTC P2119) Click here

    A

  6. REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - THROTTLE BODY ASSEMBLY)


    1. As the DTC was stored due to a change in the contact resistance of the connector, repair or replace the wire harness or connector Click here.


    NEXT

    END

  7. REPLACE THROTTLE BODY ASSEMBLY


    1. Replace the throttle body assembly Click here.


    NEXT

  8. CHECK WHETHER DTC OUTPUT RECURS (DTC P2119)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (READY).

    3. Turn the tester ON.

    4. Clear DTCs Click here.

    5. Put the engine in inspection mode Click here.

    6. Allow the engine to idle for 15 seconds.

    7. Fully depress and release the accelerator pedal several times quickly.

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

    9. Read the DTCs.

      OK
      No DTC output.

      Tech Tips

      The output voltage of the throttle position sensor can be checked using the intelligent tester. Variations in the output voltage indicate that the throttle actuator is in operation. To check the output voltage using the intelligent tester, select the following menu items:

      Powertrain / Engine and ECT / ETCS / Throttle Position No.1.


    NG

    REPLACE ECM Click here

    OK

    END