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Home >> Lexus >> 2007 >> SC 430 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> 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
G05291316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  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.