LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2006 >> GS 430 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (3UZ-FE) >> SFI System >> EVAP System >> Confirmation Driving Pattern
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Confirmation Driving Pattern

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 
    1. Preconditions

      The monitor will not run unless:

      • The vehicle has been driven for 10 minutes or more (in a city area or on a free way)
      • The fuel tank is less than 90% full
      • The altitude is less than 8,000 ft (2,400 m)
      • The Engine Coolant Temperature (ECT) is between 4.4 to 35°C (40 to 95°F)
      • The Intake Air Temperature (IAT) is between 4.4 to 35°C (40 to 95°F)
      • The vehicle remains stationary (the vehicle speed is 0 km/h (0 mph))
    2. Monitor Conditions
      1. Allow the engine to idle for at least 5 minutes.
      2. Turn the engine switch off and wait for 6 hours (8 or 10.5 hours).

        HINT:

        Do not turn the engine switch on (IG) until checking MONITOR STATUS. If the engine is started, the steps described above must be repeated.

    3. Monitor Status
      1. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
      2. Turn the engine switch on (IG).
      3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / MONITOR STATUS.
      4. Check the Monitor Status displayed on the tester.

        HINT:

        If INCMPL is displayed, the monitor is not completed. Make sure that the preconditions have been met, and perform the Monitor Conditions again.

  2. Purge flow monitor confirmation (P0441) 

    HINT:

    Perform this monitor confirmation after the key-off monitor confirmation shows COMPL (complete).

    1. Preconditions

      The monitor will not run unless:

      • The vehicle has been driven for 10 minutes or more (in a city area or on a free way)
      • The ECT is between 4.4 to 35°C (40 to 95°F)
      • The IAT is between 4.4 to 35°C (40 to 95°F)
    2. Monitor Conditions
      1. Release the pressure from the fuel tank by removing and reinstalling the fuel tank cap.
      2. Warm the engine up until the ECT reaches more than 75°C (167°F).
      3. Increase the engine speed to 3,000 RPM once.
      4. Allow the engine to idle and turn the A/C ON for 1 minute.
    3. Monitor Status
      1. Turn the engine switch off (where on (IG) or the engine is running).
      2. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
      3. Turn the engine switch on (IG).
      4. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / MONITOR STATUS.
      5. Check the Monitor Status displayed on the tester.

        HINT:

        If INCMPL is displayed, the monitor is not completed. Make sure that the preconditions have been met, and perform the Monitor Conditions again.

scientia non olet · About LEMON Manuals