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, 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

The throttle valve opening angle continues to vary greatly from the target opening angle

(1 trip detection logic)

  • Electronic Throttle Control System

  • ECM

FAIL-SAFE

When this DTC, as well as other DTCs relating to ETCS (Electronic Throttle Control System) malfunctions, 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 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 ignition switch is then turned off.

WIRING DIAGRAM

Refer to DTC P2102 Click here.

INSPECTION PROCEDURE

Tech Tips


  • 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 an intelligent tester. 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 ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2119)


    1. Connect an intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

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

    5. Read the DTC.

      Result
      Result Proceed to
      DTC P2119 A
      DTC P2119 and other DTCs output 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 an intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

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

    5. Clear DTCs Click here.

    6. Turn the ignition switch off and wait for at least 30 seconds.

    7. Turn the ignition switch to ON.

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

    9. 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

      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 (THROTTLE ACTUATOR RESISTANCE)


    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. 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 ASSEMBLY Click here

    OK

  5. READ VALUE USING INTELLIGENT TESTER (THROTTLE POSITION)


    1. Connect an intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

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

    5. Clear DTCs Click here.

    6. Turn the ignition switch off and wait for at least 30 seconds.

    7. Turn the ignition switch to ON.

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

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

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

    11. 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

      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

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

  6. REPLACE THROTTLE BODY ASSEMBLY


    1. Replace the throttle body assembly Click here.


    NEXT

  7. CHECK WHETHER DTC OUTPUT RECURS (DTC P2119)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Clear the 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 and ECT / DTC.

    8. Read DTCs.

      Result
      Result Proceed to
      No output A
      P2119 B

    B

    REPLACE ECM Click here

    A

    END