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Home >> Lexus >> 2013 >> LS 600hL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P1276-U0293) & Circuit Tests) >> SFI System >> Circuit Tests >> EVAP System >> Confirmation Driving Pattern
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Confirmation Driving Pattern

  1. KEY-OFF MONITOR DRIVE PATTERN 
    1. Connect the Techstream to the DLC3.
    2. Confirm the following conditions are satisfied:
      • The fuel level is less than 90%.
      • The altitude is less than 2400 m (8000 ft.).
      • The vehicle is stopped (the vehicle speed is less than 2 mph).
      • The ECT is 4.4 to 35°C (40 to 95°F).
      • The IAT is 4.4 to 35°C (40 to 95°F).
    3. Perform the drive pattern:
      1. Allow the engine to idle for 5 minutes or more.
      2. Turn the power switch off and wait 6 hours.
    4. Check the monitor status with the Techstream.
  2. PURGE FLOW MONITOR DRIVE PATTERN (P0441) 
    1. Connect the Techstream to the DLC3.
    2. Confirm that the following conditions are satisfied:
      • The Engine Coolant Temperature (ECT) is more than 4.4°C (40°F).
      • The Intake Air Temperature (IAT) is more than 4.4°C (40°F).
    3. Perform the drive pattern:
      1. Remove and reinstall the fuel cap to release the fuel tank pressure.
      2. Put the engine in inspection mode. Refer to INSPECTION MODE PROCEDURE [09/2012 - ] .
      3. Warm the engine until the ECT reaches 75°C (167°F) or more.
      4. Run the engine at 2500 rpm once.
      5. Allow the engine to idle and turn on the air conditioning (A/C) for 1 minute.
    4. Check the monitor status with the Techstream.