Subaru IMPREZA GD 2007 Series Manual page 2136

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Diagnostic Trouble Code (DTC) Detecting Criteria
3. ENABLE CONDITION
• Rich → lean diagnosis response
Secondary Parameters
Battery voltage
A/F sub feedback control condition
Deceleration fuel cut time is 6 seconds
or more.
After fuel cut
Current calculation time of the rear oxy-
gen sensor heater
Current continuation time of the rear oxy-
gen sensor heater
Estimated catalyst layer inner tempera-
ture
4. GENERAL DRIVING CYCLE
Perform the diagnosis only once when deceleration fuel cut occurs after rapid acceleration. (Pay attention to
the oxygen sensor voltage for the timing of the deceleration.)
Enable Conditions
> 10.9 V
Completed
Experienced
≥ 2 seconds
≥ 60 seconds
≥ 30 seconds
≥ 400°C (752°F)
GD(STI)-69
GENERAL DESCRIPTION