LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2005 >> Avalon XLS >> Repair and Diagnosis >> Engine Performance >> Engine Control System (SFI) >> EVAP Inspection Procedure >> Monitor Confirmation
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Monitor Confirmation

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 freeway)
      • 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°C and 35°C (40°F and 95°F)
      • The Intake Air Temperature (IAT) is between 4.4°C and 35°C (40°F and 95°F)
      • The vehicle remains stationary (the vehicle speed is 0 mph [0 km/h])
    2. Monitor Conditions
      1. Allow the engine to idle for at least 5 minutes.
      2. Turn the ignition switch off and wait for 6 hours (8 or 10.5 hours).

      HINT:

      Do not start the engine until checking MONITOR STATUS. If the engine is started, the steps described above must be repeated.

    3. Monitor Status
      1. Connect the hand-held tester to the DLC3.
      2. Turn the ignition switch on (IG) and turn the tester on.
      3. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / MONITOR STATUS.
      4. Check the Monitor Status displayed on the tester.

    HINT:

    If INCMP 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 freeway)
      • The ECT is between 4.4°C and 35°C (40°F and 95°F)
      • The IAT is between 4.4°C and 35°C (40°F and 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 ignition switch off.
      2. Connect the hand-held tester to the DLC3.
      3. Turn the ignition switch on (IG) and turn the tester on.
      4. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / MONITOR STATUS.
      5. Check the Monitor Status displayed on the tester.

HINT:

If INCMP 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