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Home >> Toyota >> 2019 >> Sequoia SR5, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Engine Control System (3UR-FBE) - Diagnostic Codes (2 Of 6)) >> SFI System >> DTC P0412: Secondary Air Injection System Switching Valve "A" Circuit; DTC P0415: Secondary Air Injection System Switching Valve "B" Circuit [08/2015 - 08/2017] >> Confirmation Driving Pattern

Confirmation Driving Pattern

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NOTE:
  • This Secondary Air Injection Check only allows technicians to operate the AIR system for a maximum of 5 seconds.

    Furthermore, the check can only be performed up to 4 times per trip. If the test is repeated, intervals of at least 30 seconds are required between checks.

    While AIR system operation using the Techstream is prohibited, the Techstream display indicates the prohibition (WAIT or ERROR).

    If ERROR is displayed on the Techstream during the test, stop the engine for 10 minutes, and then try again.

  • Performing the Secondary Air Injection Check repeatedly may cause damage to the AIR system. If necessary, leave an interval of several minutes between System Check operations to prevent the system from overheating.
  • When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch turned to ON or the engine running.
  • Turn the ignition switch off when the Secondary Air Injection Check operation finishes.
  1. Start the engine and warm it up.
  2. Turn the ignition switch off.
  3. Connect the Techstream to the DLC3.
  4. Turn the ignition switch to ON.
  5. Turn the Techstream on.
  6. Clear DTCs (if output) (Refer to DTC CHECK / CLEAR [08/2015 - 08/2018] ).
  7. Turn the ignition switch off and wait for at least 30 seconds.
  8. Turn the ignition switch to ON and turn the Techstream on.
  9. Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Automatic Mode.
  10. Start the engine after the Techstream initialization is finished.
  11. Perform the System Check operation by pressing ENTER (Next).
  12. Perform the following to confirm the AIR system pending codes: Press ENTER (Exit).
  13. Check for pending DTCs.

    OK

    No pending DTC is output.

  14. After the "Secondary Air Injection Check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  15. Input the DTC: P0412 or P0415.
  16. Check the DTC judgment result.
    Tester 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.
  17. If the test result is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and check for permanent DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2018] ).

    HINT: 

    • If no permanent DTC is output, the system is normal.
    • If a permanent DTC is output, the system is malfunctioning.
  18. Turn the ignition switch off.
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