Subaru IMPREZA GD 2007 Series Manual page 1873

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Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the continuous time of meeting the malfunction criteria below becomes 120 seconds or
more.
Judgment Value
Malfunction Criteria
Fuel level
After engine starting
Engine coolant temperature – Engine
coolant temperature at engine start
Fuel temperature – Engine coolant tem-
perature
Battery voltage
Time Needed for Diagnosis: 120 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in two continuous driving
cycles.
Normality Judgment
Judge as OK if the criteria below are met.
Judgment Value
Malfunction Criteria
Fuel level
After engine starting
Engine coolant temperature – Engine
coolant temperature at engine start
Fuel temperature – Engine coolant tem-
perature
Battery voltage
Engine coolant temperature
STUCK DIAGNOSIS
As the engine warms up (cumulative amount of intake air after starting is large), if the fuel temperature which
should rise does not, determine as being stuck and NG.
6. ENABLE CONDITION
Secondary Parameters
After engine starting
Battery voltage
7. GENERAL DRIVING CYCLE
Always perform diagnosis after 20 seconds have passed since the engine started.
Threshold Value
≥ 9 2 (2.38 US gal,
1.98 Imp gal)
20 seconds or more
≥ 10°C (18°F)
≥ 10°C (18°F)
> 10.9 V
Threshold Value
≥ 9 2 (2.38 US gal,
1.98 Imp gal)
20 seconds or more
≥ 10°C (18°F)
< 10°C (18°F)
> 10.9 V
< 70°C (158°F)
Enable Conditions
20 seconds or more
> 10.9 V
GD(H4DOTC)-82