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Home >> Subaru >> 2008 >> Forester X, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Engine (Diagnostics) (H4SO) >> Drive Cycle >> Procedure >> Drive Cycle H

Drive Cycle H

  1. Perform the Clear Memory Mode. < Ref. to CLEAR MEMORY MODE .>
  2. Read the engine coolant temperature, intake air temperature and fuel temperature with ignition switch ON. < Ref. to READ CURRENT DATA FOR ENGINE (NORMAL MODE) , OPERATION, Subaru Select Monitor.>
  3. If the values from step  2) satisfy the following two conditions, start the engine.

    Condition: 

    /engine coolant temperature - intake air temperature/ ≤ 5°C (41 °F) 

    /engine coolant temperature - fuel temperature/ ≤ 2°C (36°F) 

    NOTE:
    • If the value does not meet the conditions, turn the ignition switch to OFF and wait until it meets.
    • Start the engine in P range (AT model) or in N position (MT model).
  4. Idle the engine for one minute in the condition of step  3.
    DTC CHART FOR DRIVE CYCLE H

    DTC Item Condition
    *P1602 Control Module Programming Error -
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