LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2022 >> Forester Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) - Introduction >> Inspection Mode >> Procedure >> Inspection Mode O
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Mode O

DTC Description & trouble part Condition Number of driving cycles on the detecting condition
P0441 EVAP SYSTEM (CPC) INCORRECT PURGE FLOW - 2
WARNING: When performing inspection mode O on a public road, pay sufficient attention to the traffic condition and give the highest priority to safe driving.
NOTE: Perform the inspection mode after warming up the engine except that the engine coolant temperature at engine start is specified.
  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. Using the Subaru Select Monitor, perform the clear memory of [Engine Control System]. Ref. to COMMON (DIAGNOSTICS)>CLEAR MEMORY .
  3. Drive according to the drive pattern described below.
    G14412015Courtesy of SUBARU OF AMERICA, INC.
  4. Park the vehicle on a safe place.
    NOTE: Driving method while vehicle is driven to a stop at safe place is not restricted.
  5. With the vehicle idling, read the pending code of DTC using Subaru Select Monitor or general scan tool.
    NOTE: