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Home >> Toyota >> 2017 >> Corolla L >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (2ZR-FE) - Diagnostic Codes (6 Of 7) (Model Code: ZRE172) >> SFI System >> DTC P0171, P0172; System Too Lean (Bank 1) [08/2013 - 08/2016] >> Confirmation Driving Pattern
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Confirmation Driving Pattern

GTY425982Courtesy 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 procedure).
  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 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 60 and 135 km/h (37 and 84 mph) 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 [08/2013 - ]

    HINT: 

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