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HOMESERVICE MANUALSTOYOTA201886 GT, STANDARD TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM - DIAGNOSTIC CODES (6 OF 6)SFI SYSTEMDTC P2096: POST CATALYST FUEL TRIM SYSTEM TOO LEAN (BANK 1); DTC P2097: POST CATALYST FUEL TRIM SYSTEM TOO RICH (BANK 1) [07/2018 - ]CONFIRMATION DRIVING PATTERN
2018 Toyota 86 GT, Standard Trans

Confirmation Driving Pattern

2018 Toyota 86 GT, Standard TransSECTION Confirmation Driving Pattern
GTY731178Courtesy 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 DTCs (even if no DTCs are stored, perform the clear DTC operation) (Refer to DTC CHECK / CLEAR [06/2016 - ] ).
  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.
  6. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.

    HINT: 

    Check the engine coolant temperature is 20°C (68°F) or less at engine started.

  7. Perform the following the confirmation driving pattern.
    WARNING:

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

    1. Drive the vehicle at 80 km/h (50 mph) or more for 20 minutes or more [A].
    2. Stop the vehicle.
    3. Idle the engine for 1 minute or more [B].
  8. Enter the following menus: Powertrain / Engine / Trouble Codes.
  9. Read pending DTCs.

    HINT: 

    • If a pending DTC is output, the system is malfunctioning.
    • If a pending DTC is not output, perform the following procedure.
  10. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  11. Input the DTC: P2096 or P2097.
  12. Check the DTC judgment result.
    Techstream Display Description
    NORMAL
    • DTC judgment completed
    • System normal
    ABNORMAL
    • DTC judgment completed
    • System abnormal
    INCOMPLETE
    • DTC judgment not completed
    • Perform driving pattern after confirming DTC enabling conditions
    N/A
    • Unable to perform DTC judgment
    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    HINT: 

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
  13. If the test result is INCOMPLETE or N/A and no DTC is output, perform a universal trip and check for permanent DTCs (Refer to DTC CHECK / CLEAR [06/2016 - ] ).

    HINT: 

    • If a permanent DTC is output, the system is malfunctioning.
    • If no permanent DTC is output, the system is normal.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.