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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 106 (Engine Control System - Diagnostic Codes (7 Of 7) & Symptom Tests (1 Of 2)) >> SFI SYSTEM (for 1Motor-HEV Model) >> DTC P3190-00: Poor Engine Power; DTC P3191-00: Engine does not Start [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.
NOTE:

If the MIL or a master warning light illuminates, immediately end the confirmation driving pattern. If DTCs P3190-00, P3191-00 and P3193-00 are output and the engine is stopped, the HV battery will no longer be chargeable and the distance that the vehicle can be driven will be limited.

HINT: 

  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 (for measuring Exhaust Gas).

    Refer to INSPECTION MODE PROCEDURE [09/2023 - ]

  4. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [A].
  5. With the engine running and the shift position in P, wait for 5 minutes without depressing the accelerator pedal [B].
  6. Enter the following menus: Powertrain / Engine / Trouble Codes [C].
  7. 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.
  8. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  9. Input the DTC: P3190-00 or P3191-00.
  10. Check the DTC judgment result.

    HINT: 

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system is malfunctioning.
    • If the judgment result shows INCOMPLETE, perform the Confirmation Driving Pattern and check the DTC judgment result again.
    • [A] to [C]: 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.