Subaru IMPREZA GD 2007 Series Manual page 1835

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Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
8. FAIL SAFE
• Engine coolant temperature sensor process: Engine coolant temperature is fixed at 70°C (158°F)
• ISC Feedback: Calculate target engine speed as engine coolant temperature 70°C (158°F).
• ISC learning: Not allowed to learn.
• Heavy fuel judgment control: Not allowed to carry out the heavy judgment.
• Air conditioner control: Not allowed to turn the air conditioner to ON.
• Radiator fan control: Both main and sub fan are in high driving.
• High water temperature expansion compensation coefficient: Normally, mass expands with high water
temperature and other conditions, but this ignores water temperature conditions and expands when other
conditions are established.
• AVCS Control: Oil flow control solenoid valve drive output duty = 0 %.
• Tumble generator valve control: Open the tumble generator valve.
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)
GD(H4DOTC)-44