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Home >> Subaru >> 2017 >> Impreza Base, 4D Sedan, Automatic CVT Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics - Introduction) >> Inspection Mode >> Procedure >> Inspection Mode I >> Diagnostic procedure
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Diagnostic procedure

  1. Prepare the Subaru Select Monitor kit. Ref. to ENGINE (DIAGNOSTICS) >General Description>PREPARATION TOOL .
  2. Prepare PC with Subaru Select Monitor installed.
  3. Connect the USB cable to the DST-i and the USB port on the personal computer (dedicated port for the Subaru Select Monitor).
    NOTE: The dedicated port for the Subaru Select Monitor means the USB port which was used to install the Subaru Select Monitor.
  4. Connect the diagnosis cable to DST-i.
  5. Connect the DST-i to the data link connector located in the lower portion of the instrument panel (on the driver's side).
    CAUTION: Do not connect the scan tools except for Subaru Select Monitor and general scan tool.
    Fig 1: Locating Data Link Connector
    G10263247Courtesy of SUBARU OF AMERICA, INC.
  6. Start the PC.
  7. Turn the ignition switch to ON (engine OFF) and run the "PC application for Subaru Select Monitor".
  8. On [Start] display, select [Generic OBDII].
  9. On [Select System] display, select [Evaporative System Leak Test].
  10. On [Evaporative System Leak Test] display, select [Evaporative System Leak Test].
  11. On [Evaporative System Leak Test is running. Press Cancel to exit this function.] display, click the [OK] button to perform evaporative system leak test.
  12. When [Conditions have been enabled to control this function. Turn the ignition switch off to terminate the test.] display appears, wait for 30 minutes without clicking the [OK] button.
    CAUTION: Do not leave the vehicle for an extended period of time after the test is complete. This may cause early deterioration of the battery or discharged battery.
    NOTE:
    • Clicking [OK] button brings [Evaporative System Leak Test] display back, although the test is continuing.
    • The Subaru Select Monitor screen does not change after the evaporative system leak test is complete or when the test is aborted by turning off the ignition switch.
    • If [Test conditions are not correct] display appears, use Subaru Select Monitor to check that the values in [Coolant Temp.] and [Intake Air Temp.] satisfy the conditions. If the conditions are satisfied, make the necessary preparation for the inspection mode again. Ref. to ENGINE (DIAGNOSTICS) >Inspection Mode>PROCEDURE>PREPARATION FOR THE INSPECTION MODE .
  13. After 30 minutes passed from the start of step 14), click the [OK] button to return to the [Evaporative System Leak Test] display.
  14. Return to the [OBD System] display, and select [OBD Mode test results].
  15. Check TID $C1 - $CA of MID $3C in [OBD Mode test results].
    NOTE: Perform MODE $06 and check when using a general scan tool.
    ON-BOARD MONITOR TEST DESCRIPTION

    Display Details REMARKS
    $0000 is stored in all Val. During the evaporative system leak test, the test conditions were not met and the test was canceled. Once the test conditions are met, perform the test again.
    All Val. are stored with values and OK is set to all the results. Evaporative system leak test is completed correctly. While the ignition switch is ON, read the pending code using the Subaru Select Monitor.
    Some results were no good. The evaporative system leak test completed successfully but the results were faulty. While the ignition switch is ON, read the pending code using the Subaru Select Monitor.
  16. When the evaporative system leak test is completed correctly, read the pending code with the ignition switch turned to ON position. If the DTC is recorded, check the appropriate DTC.
NOTE:
  • Perform MODE $07 when using a general scan tool.
  • The pending code will be cleared by turning ignition switch to OFF.
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