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Home >> Toyota >> 2007 >> Tacoma PreRunner, 2D Pickup >> Repair and Diagnosis >> Engine Performance >> Engine Control System (2TR-FE) >> SFI System >> DTC P2A00 A/F Sensor Circuit Slow Response (Bank 1 Sensor 1) >> Confirmation Driving Pattern
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Confirmation Driving Pattern

HINT:

Performing this confirmation pattern will activate the A/F sensor response monitor.

Fig 1: Confirmation Driving Pattern
G05198326Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
  1. Connect an intelligent tester to the DLC3.
    Fig 2: Tester Display - RES RATE B1S1 Is INCOMP
    G04828272Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
  2. Turn the ignition switch to ON.
  3. Turn the tester ON.
  4. Clear DTCs (where set).
  5. Select the following menu items: DIAGNOSIS /ENHANCED OBD II / MONITOR INFO / MONITOR RESULT.
  6. Check that RES RATE B1S1 is INCOMP.
  7. Start the engine and warm it up.
  8. Drive the vehicle at between 25 mph and 75 mph (40 km/h and 120 km/h) for 3 minutes. However, the vehicle should be driven at a constant speed.
  9. Check the monitor result values on the intelligent tester by selecting the following menu items:

    DIAGNOSIS / ENHANCED OBD II / MONITOR INFO / TEST RESULT.

  10. If the values indicated on the tester do not change, perform READINESS MONITOR DRIVE PATTERN for the A/F sensor and the heated oxygen sensor (see READINESS MONITOR DRIVE PATTERN  ).

    HINT:

    Completion of all A/F sensor monitors is required to change the value in TEST RESULT.

  11. Note the value of the Monitor Result.
  12. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / PENDING CODES.
  13. Check if any DTCs (any pending DTCs) are set.