SFI SYSTEM (w/ Secondary Air Injection 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 Conditions Trouble Areas
P2119

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

(1 trip detection logic)

  • Electronic Throttle Control System (ECTS)

  • 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.

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 5,000 rpm by fully depressing the accelerator pedal being fully depressed (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 6.5° 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 at a minimal speed. If the accelerator pedal is fully depressed slowly, the vehicle can be driven slowly.

Fail-safe mode continues until a pass condition is detected, and the ignition switch is then turned to OFF.

WIRING DIAGRAM

Refer to DTC P2102 Click here.

INSPECTION PROCEDURE

Tech Tips

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 be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

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 the ON position.

    3. Turn the tester ON.

    4. Select the following menu items: 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

    A

  2. CHECK WHETHER DTC OUTPUT RECURS (DTC P2119)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to the ON position.

    3. Turn the tester ON.

    4. Clear DTCs Click here.

    5. Allow the engine to idle for 15 seconds.

      CAUTION:

      Exercise extreme care and take precautions at steps (f) and (g) below. Failure to do so may result in the vehicle unexpectedly rolling away.

    6. Securely apply the parking brake and move the gear selector lever to the D position.

    7. While depressing the brake pedal securely, fully depress the accelerator pedal for 5 seconds.

    8. On the tester, select the following menu items: Powertrain / Engine and ECT / DTC.

    9. Read DTCs.

      Tech Tips

      The voltage output of the throttle position sensor can be checked during step (g) using an intelligent tester. Variations in the voltage output indicate that the throttle actuator is in operation. To check the voltage output using the intelligent tester, select the following menu items: Powertrain / Engine and ECT / Data List / Throttle Position No.1.

      OK
      No DTC output.

    NG

    REPLACE THROTTLE W/MOTOR BODY ASSEMBLY

    OK

    NORMAL