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Home >> Subaru >> 2021 >> Legacy Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Auto Start Stop System (Diagnostics) >> Inspection Mode >> Procedure >> Preparation For The Inspection Mode
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Preparation For The Inspection Mode

  1. Check that the battery voltage is 12 V or more and fuel remains approx. half [20 - 40 L (5.3 - 10.6 US gal, 4.4 - 8.8 Imp gal)].
  2. Check that the front hood is closed.
  3. Start and warm up the engine.
  4. Using the Subaru Select Monitor, read the data of Auto Start Stop and check that [ECM Idle Stop Prohibition] and [CVT idle stop prohibition] are set to [ON]. Ref. to AUTO START STOP (DIAGNOSTICS)>DATA MONITOR .
  5. Using the Subaru Select Monitor, perform the clear memory of [Auto Start Stop]. Ref. to COMMON (DIAG)>CLEAR MEMORY .
  6. Read the diagnostic trouble code (DTC) and check that no DTC is displayed. Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
    NOTE: If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 2).
  7. Turn the ignition switch to OFF.
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