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Home >> Subaru >> 2016 >> BRZ Series.HyperBlue >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnostics (2 Of 3) >> DTC P0441 Purge Flow >> Description of functions >> Test drive

Test drive

  1. Connect the SSM3 to the DLC3.
  2. Turn the ignition switch to ON.
  3. Turn on the SSM3.
  4. Follow the SSM3 on-screen instructions to clear the DTCs. (Refer to CHECKING/CLEARING DTC )
  5. Turn the ignition switch to OFF, and wait for 30 seconds.
  6. Turn the ignition switch to ON.
  7. Turn on the SSM3.
  8. Start the engine and wait for 15 minutes or more.
  9. Follow the SSM3 on-screen instructions to check the DTC. (Refer to CHECKING/CLEARING DTC )
  10. Follow the SSM3 on-screen instructions to clear the DTCs. (Refer to CHECKING/CLEARING DTC )
  11. Turn the ignition switch to OFF, and wait for 30 seconds.
  12. Turn the ignition switch to ON.
  13. Turn on the SSM3.
  14. Select the following menu items using the SSM3.: [Inspection of BRZ]/[Each System Check]/[Engine Control System]/[OBD System]/[Evaporative System Leak Test]
  15. Click the [OK] button to perform the evaporative system leak test.
    CAUTION:
    • When performing the evaporative system leak test continuously, pay attention to the battery condition. If the evaporative system leak test is repeatedly performed without starting the engine, the battery voltage will drop and may cause run-out of the battery.
    • Do not leave the vehicle for a prolonged period with the evaporative system leak test performed. This may cause an early deterioration of the battery or cause a battery discharge.
    NOTE:
    • When performing the evaporative system leak test continuously, drive the vehicle under the following conditions, and release the accumulated evaporative emission. If the evaporative system leak test is continuously performed with the engine stopped, a large amount of evaporative emission is accumulated into the canister, which may prevent correct diagnosis.
      • After warming-up
      • Drive at 48 km/h {30 MPH} or more for 10 minutes or more. (It may be the accumulated driving time.)
    • Observe the following items for operation to obtain correct diagnostic result.
      • Do not refuel the vehicle before performing the evaporative system leak test. Because a large amount of evaporative emission is generated in the fuel tank immediately after refueling the vehicle, the accuracy of the diagnosis may be reduced.
      • Do not shake the vehicle while the evaporative system leak test is being performed. Rocking the vehicle will increase the evaporative emission in the fuel tank, which may reduce the accuracy of the diagnosis.
      • During evaporative system leak test, do not perform any service operation including removal/installation of the parts and connectors. Otherwise, the service operation may affect the related parts, and the accuracy of the diagnosis can be reduced.
  16. The display with the message "Conditions have been enabled to control this function. Turn the ignition switch off to terminate the test." will appear. In this display, wait for 30 minutes without clicking the [OK] button.
    NOTE:
    • If you click the [OK] button, it will return to the [Evaporative System Leak Test] display. However, the evaporative system leak test is still being performed.
    • The display of the SSM3 will not change both when the evaporative system leak test is successfully completed and when the test is canceled by turning IG to OFF.
    • If the [Test conditions are not correct] screen is displayed, use the SSM3 to confirm that the [Coolant Temp.] and [Intake Air Temp.] values satisfy the conditions. When the values are within the specification, perform the evaporative system leak test.
  17. When 30 minutes has passed after finishing step  15, click the [OK] button.
  18. Return to the [OBD Menu] display and select [Result of on-board monitor test].
  19. Check TID $C1 to $CA of MID $3C in [Result of on-board monitor test].

    Result of on-board monitor test

    RESISTANCE REFERENCE (SHORT CIRCUIT CHECK)

    Display Details Remarks
    $0000 is stored in every Val. The test condition fails to be met during evaporative system leak test, and the test has been cancelled. Re-run the test after ensuring that the test conditions are met.
    Any value is stored in every Val. and every Result shows OK. The evaporative system leak test is completed successfully. Use the SSM3 to read the temporary code with IG ON.
    Any one of the results is NG The evaporative system leak test is completed successfully but there is an error in the results. Use the SSM3 to read the temporary code with IG ON.
  20. When the evaporative system leak test is completed successfully, read the temporary code with IG ON. When any DTC is recorded, troubleshoot the appropriate DTC.
    NOTE: Turning IG to OFF will clear the temporary codes.
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