LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2008 >> GX 470 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P2119 Throttle Actuator Control Throttle Body Range/Performance >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

HINT:

Read freeze frame data using the Techstream. 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.

  1. CHECK ANY OTHER DTC OUTPUT (IN ADDITION TO DTC P2119) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch ON.
    3. Enter the following menus: Powertrain/Engine and ECT/Trouble Codes.
    4. Read the DTCs.

      Result 

      RESULT REFERENCE

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

      HINT:

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

    B: GO TO DTC CHART 

    A: Go to Next Step 

  2. CHECK WHETHER DTC OUTPUT RECURS (DTC P2119) 
    1. Connect the Techstream to the DLC3 [A].
    2. Turn the ignition switch ON [B].
    3. Turn the tester ON [C].
    4. Clear the DTCS [D].
    5. Allow the engine to idle for 15 seconds [E].
      NOTE: 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 [F].
    7. While depressing the brake pedal securely, fully depress the accelerator pedal for 5 seconds [G].
    8. On the tester, enter the following menus: Powertrain/Engine and ECT/Trouble Codes [H].
    9. Read the DTCs [I].

      HINT:

      The output voltage of the throttle position sensor can be checked during step [G] using the Techstream. Variations in the output voltage indicate that the throttle actuator is in operation. To check the output voltage using the Techstream, enter the following menus: Powertrain/Engine and ECT/ETCS/Throttle Position No. 1.

      OK: No DTC output. 

    NG: REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY 

    OK: NORMAL