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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 91 (Engine Control System - Circuit Tests & Symptom Tests (2 Of 2)) >> SFI SYSTEM (for 1Motor-HEV Model) >> EVAP System [09/2023 - ] >> Confirmation Driving Pattern

Confirmation Driving Pattern

WARNING: This page is about a different car, the 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.

HINT: 

After a repair, check Monitor Status by performing the Key-Off Monitor Confirmation and Purge Flow Monitor Confirmation described below.

  1. KEY-OFF MONITOR CONFIRMATION 
    NOTE:
    • The Evaporative System Check (Automatic Mode) consists of 9 steps performed automatically by the GTS. It takes a maximum of approximately 40 minutes.
    • Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable.
    • Do not start the engine during this operation.
    • When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the fuel temperature less than 35°C (95°F).
    1. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
    2. Turn the ignition switch off and wait for at least 30 seconds.
    3. Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode.
    4. After the "Evaporative System Check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine / Utility / All Readiness.
    5. Input the DTC: P043E-00, P043F-00, P0446-72, P4467-3, P0450-11, P0450-15, P0450-2F, P1420-00, P1421-00, P1422-00, P1423-00, P1450-11, P1450-15, P1450-2A, P1450-2F, P148D-7E, P2400-7E, P2400-7F, P2450-7E or P2451-7F.
    6. Check the DTC judgment result.

      HINT: 

      • If the judgment result is NORMAL, the system is normal.
      • If the judgment result is ABNORMAL, the system is malfunctioning.
  2. PURGE FLOW MONITOR CONFIRMATION (P0441-9C) 

    HINT: 

    Perform this monitor confirmation after the Key-Off Monitor Confirmation shows Complete.

    1. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
    2. Turn the ignition switch off and wait for at least 30 seconds.
    3. Put the engine in Inspection Mode (Maintenance Mode).

      Refer to INSPECTION MODE PROCEDURE [09/2023 - ]

    4. Start the engine and wait 15 minutes or more.
    5. Enter the following menus: Powertrain / Engine / Trouble Codes.
    6. Read the pending DTCs.

      HINT: 

      • If a pending DTC is output, the system is malfunctioning.
      • If a pending DTC is not output, perform the following procedure.
    7. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
    8. Input the DTC: P0441-9C.
    9. Check the DTC judgment result.

      HINT: 

      • If the judgment result is NORMAL, the system is normal.
      • If the judgment result is ABNORMAL, the system is malfunctioning.
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