SFI SYSTEM, Diagnostic DTC:P2119

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

SYSTEM DESCRIPTION

The Electronic Throttle Control System (ETCS) is composed of the throttle actuator, Throttle Position (TP) sensor, Accelerator Pedal Position (APP) sensor, 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

  • Wire harness or connector

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.

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

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 off, 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 engine 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 engine switch on (IG).

    3. Turn the tester ON.

    4. Enter the following menus: Powertrain / Engine / 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 engine switch on (IG).

    3. Turn the tester ON.

    4. Clear DTCs Click here.

    5. Turn the engine switch off.

    6. Turn the engine switch on (IG).

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

    8. Check the values displayed on the intelligent 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 (VISUALLY CHECK THROTTLE VALVE) Click here

    A

  3. INSPECT THROTTLE BODY (RESISTANCE OF THROTTLE ACTUATOR)


    1. Inspect the throttle body Click here.


    NG

    REPLACE THROTTLE BODY Click here

    OK

  4. INSPECT THROTTLE BODY (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.

    NG

    REPLACE THROTTLE BODY Click 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.

    5. Turn the engine switch off.

    6. Turn the engine switch on (IG).

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

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

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

    10. Check for DTCs.

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

    B

    CHECK WHETHER DTC OUTPUT RECURS (DTC P2119) Click here

    A

    GO TO DTC CHART Click here

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


    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


    1. Replace the throttle body Click here.


    NEXT

  8. 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 DTCs Click here.

    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 / DTC.

    8. Read DTCs.

      Result
      Display (DTC Output) Proceed to
      No DTC A
      P2119 B

    NG

    REPLACE ECM Click here

    OK

    END