Subaru IMPREZA GD 2007 Series Manual page 1965

asieps_tobira_IM_US.book 174 ページ ２０１２年１月１７日 火曜日 午後３時４８分
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
7. FAIL SAFE
• Judgment of heavy fuel: Not allowed to make the judgment of heavy fuel
• Knock compensation:
– Knock compensation final advance/retard angle value = knock compensation value + whole learning
compensation value + portional learning compensation value
– When normal: Knock compensation value = Fixed at 0°CA
– Failure: Knock compensation value ≠ Fixed at 0° CA (When knock: Max. 12°CA retard)
– Whole learning compensation coefficient update not allowed
– Portional learning zone compensation value calculation not allowed.
8. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)
GD(H4DOTC)-174