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Home >> Toyota >> 2009 >> Tundra Base, 5.7 W >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (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

WARNING: This page is about a different car, the 2009 Toyota Tacoma. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

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

Fig 1: Vehicle Speed Driving Pattern
G05198326Courtesy 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 (if set).
  5. Select the following menu items: Powertrain/Engine and ECT/Monitor/O2 Sensor/Details.
  6. Check that RES RATE B1S1 is incomplete.
  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 test result values on the Techstream by selecting the following menu items: Powertrain/Engine and ECT/Monitor/O2 Sensor.
  10. If the values indicated on the Techstream 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: Powertrain/Engine and ECT/Trouble Codes/Pending.
  13. Check if any DTCs (any pending DTCs) are set.