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Home >> Lexus >> 2007 >> GX 470 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC P0010 - P0333 >> 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: Confirmation Driving Pattern Of Vehicle Speed
G04828065Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
  1. Connect the intelligent tester to the DLC3.
  2. Turn the ignition switch 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 62 mph (100 km/h) for 20 seconds or more.
  7. On the tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / PENDING CODES and check if any DTCs (any pending DTCs) are set.