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Home >> Scion >> 2008 >> xB Standard >> Repair and Diagnosis >> Engine Performance >> System >> 2AZ-FE Engine Control System - DTC P0010 - P0139 >> DTC P0101 Mass Air Flow Circuit Range / Performance Problem >> Confirmation Driving Pattern
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Confirmation Driving Pattern

HINT:

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

Fig 1: Vehicle Speed Graph
G05386631Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Connect an intelligent tester or a Techstream to the DLC3.
  2. Turn the ignition switch to ON.
  3. Turn the tester ON.
  4. Clear DTCs (See DTC CHECK/CLEAR ).
  5. Start the engine, and warm it up until the engine coolant temperature reaches 70°C (158°F) or higher.
  6. Drive the vehicle at approximately 100 km/h (62 mph) for 20 seconds or more.
  7. Select the following menu items:
    • Intelligent tester - Select: DIAGNOSIS / ENHANCED OBD II / DTC INFO / PENDING CODES; then check if any DTCs (any pending DTCs) are set.
    • Techstream - Select: Powertrain / Engine and ECT / Trouble Codes / Pending; then check if any DTCs (any pending DTCs) are set.