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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 103 (Engine Control System - Diagnostic Codes (4 Of 7)) >> SFI SYSTEM (for 1Motor-HEV Model) >> DTC P04F0-9C: Evaporative Emission System High Load Purge Line "A" Performance Low/Insufficient Flow [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: 

GTY1205281Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  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. Turn the ignition switch to ON and turn the GTS on [A].
  4. Put the engine in Inspection Mode (for measuring Exhaust Gas).

    Refer to INSPECTION MODE PROCEDURE [09/2023 - ]

  5. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].

    HINT: 

    The A/C switch and all accessory switches should be off.

  6. With the engine running, accelerate the vehicle to 60 km/h (37 mph) for 8 seconds or more [C].
    WARNING:

    When performing the confirmation driving pattern, obey all speed limits and traffic laws.

  7. Repeat step [C] above at least 4 times in one driving cycle.
  8. Enter the following menus: Powertrain / Engine / Trouble Codes [D].
  9. 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.
  10. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  11. Input the DTC: P04F0-9C.
  12. Check the DTC judgment result.

    HINT: 

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
    • If the judgment result shows INCOMPLETE, perform steps [B] and [D].
    • [A] to [D]: Normal judgment procedure.

      The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

    • When clearing the permanent DTCs, do not disconnect the cable from the auxiliary battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.