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Home >> Subaru >> 2018 >> Forester 2.5i, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics - Introduction) (H4DO) >> Drive Cycle >> Procedure >> Drive Cycle Aa
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Drive Cycle Aa

DTC Item Condition Number of driving cycles on the detecting condition
P1449 EVAP SYSTEM CLOG DETECTED (AIR FILTER) - 2
WARNING: When performing drive cycle AA on a public road, pay sufficient attention to the traffic condition and give the highest priority to safe driving.

Diagnostic procedure: 

  1. Drive 3 times according to the drive pattern described below.
    G12519058Courtesy of SUBARU OF AMERICA, INC.
  2. Read the temporary code using the Subaru Select Monitor or general scan tool. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Read Diagnostic Trouble Code (DTC)>OPERATION .