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Home >> Toyota >> 2009 >> Tundra Base, 5.7 W >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (3UR-FBE) - DTC P0010 - P0230 >> DTC P0101 Mass Air Flow Circuit Range/Performance Problem >> Confirmation Driving Pattern

Confirmation Driving Pattern

HINT:

Performing this confirmation pattern will activate the mass air flow performance monitor.

Fig 1: Vehicle Speed Driving Pattern
G06073327Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON.
  3. Turn the Techstream on.
  4. Clear DTCs (See DTC CHECK/CLEAR ).

    HINT:

    Even if no DTCs are stored, perform the DTC clear operation to start alcohol concentration learning.

  5. Start the engine.

    HINT:

    After clearing the DTCs, the engine may become difficult to start if the concentration of alcohol in the fuel is high. Therefore, it may be necessary to crank the engine a few times before it starts.

  6. Warm it up until the ECT reaches 75°C (167°F) or higher [A].
  7. Drive the vehicle at 32 km/h (20 mph) or more and maintain a constant speed for 2 minutes or more [B].

    HINT:

    Make sure that the Data List "Alcohol Density Learning" is "Compl".

  8. Drive the vehicle at approximately 100 km/h (62 mph) for 20 seconds or more [C].
  9. Enter the following menus: Powertrain/Engine and ECT/Trouble Codes/Pending.
  10. Check if any DTCs (any pending DTCs) are output.