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Home >> Subaru >> 2009 >> Forester X, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Engine (Diagnostics) (H4SO) >> Drive Cycle >> Procedure >> Drive Cycle D
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Drive Cycle D

  1. Check that the engine coolant temperature at engine start is less than 30°C (86°F).
  2. Make sure that fuel remains 10 (2.6 US gal, 2.2 Imp gal) or more and the battery voltage is 10.9 V or more.
  3. Start the engine, and check that the engine coolant temperature increases by 10°C (50°F) or more, and reaches 75°C (167°F) or more, when the engine is warmed up.
  4. Idle the engine for 120 seconds or more in the condition of step 3.
  1. Make sure that the battery voltage is 10.9 V or more.
  2. Perform the Clear Memory Mode. Refer to CLEAR MEMORY MODE .
  3. Drive the vehicle for the distance equal to the fuel of 50 (13.2 US gal, 11 Imp gal).
NOTE:
  • It is acceptable to drive the vehicle intermittently.
  • Do not disconnect the battery terminals while diagnosing. (Data will be cleared by disconnecting the battery terminals).
DTC CONDITION CHART

DTC Item Condition
P0181 Fuel Temperature Sensor "A" Circuit Range/Performance -