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Home >> Toyota >> 2013 >> Matrix Base, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2ZR-FE) (Diagnostic Codes (P0010-P0420) >> SFI System >> DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1) >> Confirmation Driving Pattern
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Confirmation Driving Pattern

Fig 1: Confirmation Driving Pattern Diagram
GTY293474Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to DTC CHECK / CLEAR .
  4. Turn the ignition switch off and wait for at least 30 seconds.
  5. Turn the ignition switch to ON and turn the Techstream on [A].
  6. Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher with all the accessories switched off [B].
  7. With the engine warmed up, idle the engine for 2 minutes or more [C].
  8. Drive the vehicle at a speed between 37 and 84 mph (60 and 135 km/h) for 5 minutes or more [D].
    WARNING:

    When performing the confirmation driving pattern, obey all speed limits and traffic laws.

  9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [E].
  10. Read the pending DTCs.

    HINT: 

    If a pending DTC is output, the system is malfunctioning.

  11. If no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to DTC CHECK / CLEAR .

    HINT: 

    • If a permanent DTC is output, the system is malfunctioning.
    • If no permanent DTC is output, the system is normal.