Subaru Legacy IV (2008 year). Service manual — part 207
GD(H4SO)-130
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
5. DIAGNOSTIC METHOD
• Abnormality Judgement
Judge as NG when the following conditions are established.
Time Needed for Diagnosis: Less than 1 second
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cy-
cles.
• Normality Judgement
Judge as OK and clear the NG if the following conditions are established.
Time Needed for Diagnosis: Less than 1 second
Judgement Value
Malfunction Criteria
Threshold Value
Accumulated amount of intake air
t 330957 g (11672.85 oz)
Max. – min. values of fuel level output
< 2.6
2 (0.69 US gal,
0.57 Imp gal)
Battery voltage
t 10.9 V
Engine speed
< 6000 rpm
Elapsed time after starting the engine
t 5000 ms
Judgement Value
Malfunction Criteria
Threshold Value
Accumulated amount of intake air
t 330957 g (11672.85 oz)
Max. – min. values of fuel level output
t 2.6
2 (0.69 US gal,
0.57 Imp gal)
Battery voltage
t 10.9 V
Engine speed
< 6000 rpm
Elapsed time after starting the engine
t 5000 ms
GD(H4SO)-131
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BQ:DTC P0462 FUEL LEVEL SENSOR “A” CIRCUIT LOW
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of fuel level sensor. Judge as NG if out of specification.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITION
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
(1)
Engine control module (ECM)
(3)
Fuel sub level sensor
(5)
Body integrated unit
(2)
Fuel level sensor
(4)
Detecting circuit
Secondary Parameters
Enable Conditions
None
(5)
(4)
(1)
(2)
(3)
EN-05371
GD(H4SO)-132
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
5. DIAGNOSTIC METHOD
• Abnormality Judgement
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Time Needed for Diagnosis: 2500 ms
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cy-
cles.
• Normality Judgement
Judge as OK and clear the NG if the continuous time while the following conditions are established is more
than the predetermined time.
Time Needed for Diagnosis: Less than 1 second
Judgement Value
Malfunction Criteria
Threshold Value
Battery voltage
t 10.9 V
Elapsed time after starting the engine
t 3000 ms
Output voltage
< 0.173 V
Judgement Value
Malfunction Criteria
Threshold Value
Battery voltage
t 10.9 V
Elapsed time after starting the engine
t 3000 ms
Output voltage
t 0.173 V
GD(H4SO)-133
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BR:DTC P0463 FUEL LEVEL SENSOR “A” CIRCUIT HIGH
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of fuel level sensor. Judge as NG if out of specification.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITION
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
(1)
Engine control module (ECM)
(3)
Fuel sub level sensor
(5)
Body integrated unit
(2)
Fuel level sensor
(4)
Detecting circuit
Secondary Parameters
Enable Conditions
None
(5)
(4)
(1)
(2)
(3)
EN-05371
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