SFI SYSTEM(w/ EGR 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 sensor, accelerator pedal position sensor and ECM. The ECM operates the throttle actuator to regulate the throttle valve in response to driver inputs. The throttle position 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.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Memory

P2119

Throttle Actuator Control Throttle Body Range / Performance

Throttle valve opening angle continues to vary greatly from the target opening angle (1 trip detection logic).

  • ETCS

  • ECM

  • Wire harness or connector

Comes on

DTC stored

MONITOR DESCRIPTION

The ECM determines the actual opening angle of the throttle valve from the throttle position sensor signal. The actual opening angle is compared to the target opening angle calculated 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 stores the DTC.

If the malfunction is not repaired successfully, the DTC is stored when the accelerator pedal is quickly released (to close the throttle valve) after the engine speed reaches 5000 rpm by the accelerator pedal being fully depressed (fully opening the throttle valve).

MONITOR STRATEGY

Required Sensors/Components

Throttle actuator

Frequency of Operation

Continuous

TYPICAL ENABLING CONDITIONS

Throttle actuator

ON

Throttle actuator duty calculation

Executing

Throttle position sensor failure

Not detected

Throttle actuator current-cut operation

Not executing

Throttle actuator failure

Not detected

TYPICAL MALFUNCTION THRESHOLDS

Either of following conditions A or B met

-

A. Difference between commanded closed throttle position and current closed throttle position

0.3 V or more for 1 second

B. Difference between commanded open throttle position and current open throttle position

0.3 V or more for 0.6 seconds

CONFIRMATION DRIVING PATTERN

A199316E20

  1. Connect the intelligent tester to the DLC3.

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

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

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

  5. Turn the engine switch on (IG) and turn the tester on [A].

  6. Start the engine.

  7. Idle the engine for 20 seconds.

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

  9. 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.

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

  11. Input the DTC: P2119.

  12. Check the DTC judgment result.

    Tester 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
    Tip:

    • 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, fully depress and release the accelerator pedal 3 times, and then check the DTC judgment result [C].

FAIL-SAFE

When this DTC or other DTCs relating to ETCS (Electronic Throttle Control System) malfunctions are 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 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 position to allow the vehicle to continue at a minimal speed. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.

The ECM continues operating in fail-safe mode until a pass condition is detected, and the engine switch is then turned off.

WIRING DIAGRAM

Refer to DTC P2102.

Click here

CAUTION / NOTICE / HINT

Tip:

  • Refer to "Data List / Active Test" [Throttle Position Commanded, Throttle Position No. 1, Throttle Motor Current, Throttle Motor Duty (Open) and Throttle Motor Duty (Close)] (Click here).

  • 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 FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2119)

    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the tester on.

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

    5. Read DTCs.

      Powertrain > Engine and ECT > Trouble Codes

      Result

      Result

      Proceed to

      P2119 is output

      A

      P2119 and other DTCs are output

      B
      Tip:

      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 engine switch on (IG).

    3. Turn the tester on.

    4. Clear DTCs.

      Click here

      Powertrain > Engine and ECT > Clear DTCs

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

    6. Turn the engine switch on (IG).

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

      Powertrain > Engine and ECT > Data List

      Tester Display

      Throttle Position No.1

      Throttle Position Command

    8. Check 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
      Tip:

      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

      Result

      Result

      OK

      NG
    NG

    REPLACE THROTTLE BODY ASSEMBLYClick here

    OK

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

    1. Check for contamination between the throttle valve and housing. If necessary, clean the throttle body. Also, check that the throttle valve moves smoothly.

      OK

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

      Result

      Result

      OK

      NG
    NG

    REPLACE THROTTLE BODY ASSEMBLYClick here

    OK

  5. READ VALUE USING INTELLIGENT TESTER (THROTTLE POSITION)

    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the tester on.

    4. Clear DTCs.

      Click here

      Powertrain > Engine and ECT > Clear DTCs

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

    6. Turn the engine switch on (IG).

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

      Powertrain > Engine and ECT > Data List

      Tester Display

      Throttle Position No.1

      Throttle Position No.2

      Throttle Position Command

    8. Check the values displayed on the tester while wiggling the ECM wire harness.

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

    10. Check for DTCs.

      Powertrain > Engine and ECT > Trouble Codes

      Result

      Result

      Proceed to

      Value in Data List changes when wire harness is wiggled, or DTC is output*

      A

      Other than above

      B

      • *: 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

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    B

    CHECK WHETHER DTC OUTPUT RECURS (DTC P2119)Click here

  6. REPLACE THROTTLE BODY ASSEMBLY

    1. Replace the throttle body assembly.

      Click here

      Result

      Result

      NEXT
    NEXT

  7. CHECK WHETHER DTC OUTPUT RECURS (DTC P2119)

    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the tester on.

    4. Clear the DTCs.

      Click here

      Powertrain > Engine and ECT > Clear DTCs

    5. Allow the engine to idle for 15 seconds or more.

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

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

    8. Read DTCs.

      Powertrain > Engine and ECT > Trouble Codes

      Result

      Result

      Proceed to

      No DTC is output

      A

      P2119 is output

      B
    A

    END

    B

    REPLACE ECM

    Click here