Subaru LEGACY 2006 Manual page 507

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Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
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
Rear oxygen heater current calculation
time
Rear oxygen heater current continuous
time
Catalyst warm-up counter
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 sec.
≥ 60 sec.
≥ 30 sec.
≥ 9000
GD(H4SO)-70