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Home >> Lexus >> 2020 >> UX 200 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 25 (Engine Control System (SFI) (M20A-FXS) - Diagnostic Codes (5 Of 6) (Hybrid)) >> SFI System >> DTC P2270-19: A/F (O2) Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2 Circuit Current Above Threshold; DTC P227118: A/F (O2) Sensor Signal Biased/Stuck Rich Bank 1 Sensor 2 Circuit Current Below Threshold [10/2018 - ] >> Confirmation Driving Pattern

Confirmation Driving Pattern

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HINT: 

GTY763504Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Connect the Techstream to the DLC3.
  2. Turn the power switch on (IG).
  3. Turn the Techstream on.
  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  5. Turn the power switch off and wait for at least 30 seconds.
  6. Turn the power switch on (IG).
  7. Turn the Techstream on.
  8. Enter the following menus: Powertrain / Engine / Monitor / Current Monitor.
  9. Check that Catalyst Efficiency / Current is Incomplete.
  10. Put the engine in Inspection Mode (Maintenance Mode).

    Refer to INSPECTION MODE PROCEDURE [10/2018 - ]

  11. Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher with the shift lever in P [A].

    HINT: 

    In order to keep the idle stable, turn off the A/C and all other electric loads and do not perform any shift operations.

  12. With the engine running, drive the vehicle at approximately 75 km/h (46 mph) for 10 minutes or more [B].
    WARNING:

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

    HINT: 

    • Drive the vehicle while keeping the engine load as constant as possible.
    • If the engine stops, further depress the accelerator pedal to restart the engine.
  13. With the shift lever in S and the engine running, drive the vehicle at 75 km/h (46 mph), and then decelerate the vehicle by releasing the accelerator pedal for 10 seconds or more to perform the fuel-cut [C].
    WARNING:

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

    HINT: 

    If the engine stops, further depress the accelerator pedal to restart the engine.

  14. Repeat step [C] 2 times or more in one driving cycle.
  15. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending [D].
  16. 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.
  17. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  18. Input the DTC: P227019 or P227118.
  19. Check the DTC judgment result.
    Techstream Display Description
    NORMAL
    • DTC judgment completed
    • System normal
    ABNORMAL
    • DTC judgment completed
    • System abnormal
    INCOMPLETE
    • DTC judgment not completed
    • Perform driving pattern after confirming DTC enabling conditions

    HINT: 

    • If the judgment result is NORMAL, the system is normal.
    • If the judgment result is ABNORMAL, the system is malfunctioning.
    • If the judgment result is INCOMPLETE, drive the vehicle with the shift lever in S, and then perform step [C] again.
    • [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.