Subaru Legacy IV (2008 year). Manual - part 418

 

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Subaru Legacy IV (2008 year). Manual - part 418

 

 

GD(H4DOTC)-122

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

Mode E: (Evaporation occurrence amount calculation)
Calculate the change of tank pressure with the time evpdset to judge as NG/OK according to the value of P1.
(ambiguous determination acceptable).
• Abnormality Judgement
Judge as NG when the following conditions are established.

Time Needed for Diagnosis:Value of Map1+ Value of Map2 + 20000 ms + 0  + Value of Map2 + 0 ms +
200000 ms + Value of Map3 + 0 ms + 200000 ms
Malfunction Indicator Light Illumination:  Illuminates when malfunction occurs in 2 continuous driving cy-
cles.

Judgement Value

Malfunction Criteria

Threshold Value

P1

< Value of Map 8

Map 8 Fault criteria limit for Evaporative emission control system diagnosis

Time (evpdset) vs Fuel level

0 ms

30000 ms

50000 ms

100000 ms

160000 ms

200000 ms

0

2 (0 US gal, 0 Imp gal)

0 kPa 

(0 mmHg, 0 

inHg)

0.1 kPa 

(0.5 mmHg, 

0 inHg)

0.2 kPa 

(1.7 mmHg, 

0.1 inHg)

0.4 kPa 

(2.7 mmHg, 

0.1 inHg)

0.4 kPa 

(2.7 mmHg, 

0.1 inHg)

0.4 kPa 

(2.7 mmHg, 

0.1 inHg)

10

2 (2.64 US gal, 2.2 Imp gal)

0 kPa 

(0 mmHg, 0 

inHg)

0.1 kPa 

(0.5 mmHg, 

0 inHg)

0.2 kPa 

(1.7 mmHg, 

0.1 inHg)

0.4 kPa 

(2.7 mmHg, 

0.1 inHg)

0.4 kPa 

(2.7 mmHg, 

0.1 inHg)

0.4 kPa 

(2.7 mmHg, 

0.1 inHg)

20

2 (5.28 US gal, 4.4 Imp gal)

0 kPa 

(0 mmHg, 0 

inHg)

0.1 kPa 

(0.5 mmHg, 

0 inHg)

0.2 kPa 

(1.7 mmHg, 

0.1 inHg)

0.4 kPa 

(2.7 mmHg, 

0.1 inHg)

0.4 kPa 

(2.7 mmHg, 

0.1 inHg)

0.4 kPa 

(2.7 mmHg, 

0.1 inHg)

30

2 (7.93 US gal, 6.6 Imp gal)

0 kPa 

(0 mmHg, 0 

inHg)

0.1 kPa 

(0.5 mmHg, 

0 inHg)

0.2 kPa 

(1.7 mmHg, 

0.1 inHg)

0.4 kPa 

(2.7 mmHg, 

0.1 inHg)

0.4 kPa 

(2.7 mmHg, 

0.1 inHg)

0.4 kPa 

(2.7 mmHg, 

0.1 inHg)

40

2 (10.57 US gal, 8.8 Imp gal)

0 kPa 

(0 mmHg, 0 

inHg)

0.1 kPa 

(0.5 mmHg, 

0 inHg)

0.2 kPa 

(1.85 mmHg, 

0.1 inHg)

0.3 kPa 

(2.5 mmHg, 

0.1 inHg)

0.3 kPa 

(2.5 mmHg, 

0.1 inHg)

0.3 kPa 

(2.5 mmHg, 

0.1 inHg)

50

2 (13.21 US gal, 11 Imp gal)

0 kPa 

(0 mmHg, 0 

inHg)

0.1 kPa 

(0.5 mmHg, 

0 inHg)

0.3 kPa 

(2 mmHg, 

0.1 inHg)

0.3 kPa 

(2.3 mmHg, 

0.1 inHg)

0.3 kPa 

(2.3 mmHg, 

0.1 inHg)

0 kPa 

(0 mmHg, 0 

inHg)

60 

2 (15.85 US gal, 13.2 Imp gal)

0 kPa 

(0 mmHg, 0 

inHg)

0.1 kPa 

(0.5 mmHg, 

0 inHg)

0.3 kPa 

(2 mmHg, 

0.1 inHg)

0.3 kPa 

(2.3 mmHg, 

0.1 inHg)

0.3 kPa 

(2.3 mmHg, 

0.1 inHg)

0 kPa 

(0 mmHg, 0 

inHg)

GD(H4DOTC)-123

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

• Normality Judgement
Judge as OK when the following conditions are established.

Time Needed for Diagnosis:Value of Map1+ Value of Map2 + 20000 ms + 0  + Value of Map2 + 0 ms +
200000 ms + Value of Map3 + 0 ms + 200000 ms

Judgement Value

Malfunction Criteria

Threshold Value

P1

> Value of Map 9

Map 9 Malfunction criteria limit for evaporation diagnosis

Time (evpdset) vs Fuel level

0 ms

30000 ms

50000 ms

100000 ms

160000 ms

200000 ms

0

2 (0 US gal, 0 Imp gal)

0.1 kPa 

(1 mmHg, 0 

inHg)

0.5 kPa 

(3.5 mmHg, 

0.1 inHg)

0.6 kPa 

(4.2 mmHg, 

0.2 inHg)

0.6 kPa 

(4.2 mmHg, 

0.2 inHg)

0.6 kPa 

(4.2 mmHg, 

0.2 inHg)

0.6 kPa 

(4.2 mmHg, 

0.2 inHg)

10

2 (2.64 US gal, 2.2 Imp gal)

0.1 kPa 

(1 mmHg, 0 

inHg)

0.5 kPa 

(3.5 mmHg, 

0.1 inHg)

0.6 kPa 

(4.2 mmHg, 

0.2 inHg)

0.6 kPa 

(4.2 mmHg, 

0.2 inHg)

0.6 kPa 

(4.2 mmHg, 

0.2 inHg)

0.6 kPa 

(4.2 mmHg, 

0.2 inHg)

20

2 (5.28 US gal, 4.4 Imp gal)

0.1 kPa 

(1 mmHg, 0 

inHg)

0.4 kPa 

(3.25 mmHg, 

0.1 inHg)

0.5 kPa 

(4.1 mmHg, 

0.2 inHg)

0.5 kPa 

(4.1 mmHg, 

0.2 inHg)

0.5 kPa 

(4.1 mmHg, 

0.2 inHg)

0.5 kPa 

(4.1 mmHg, 

0.2 inHg)

30

2 (7.93 US gal, 6.6 Imp gal)

0.1 kPa 

(1 mmHg, 0 

inHg)

0.4 kPa 

(3 mmHg, 

0.1 inHg)

0.5 kPa 

(3.9 mmHg, 

0.2 inHg)

0.5 kPa 

(3.9 mmHg, 

0.2 inHg)

0.5 kPa 

(3.9 mmHg, 

0.2 inHg)

0.5 kPa 

(3.9 mmHg, 

0.2 inHg)

40

2 (10.57 US gal, 8.8 Imp gal)

0.1 kPa 

(1 mmHg, 0 

inHg)

0.3 kPa 

(2.25 mmHg, 

0.1 inHg)

0.5 kPa 

(3.4 mmHg, 

0.1 inHg)

0.5 kPa 

(3.4 mmHg, 

0.1 inHg)

0.5 kPa 

(3.4 mmHg, 

0.1 inHg)

0.5 kPa 

(3.4 mmHg, 

0.1 inHg)

50

2 (13.21 US gal, 11 Imp gal)

0.1 kPa 

(1 mmHg, 0 

inHg)

0.2 kPa 

(1.5 mmHg, 

0.1 inHg)

0.4 kPa 

(2.9 mmHg, 

0.1 inHg)

0.4 kPa 

(2.9 mmHg, 

0.1 inHg)

0.4 kPa 

(2.9 mmHg, 

0.1 inHg)

0.4 kPa 

(2.9 mmHg, 

0.1 inHg)

60 

2 (15.85 US gal, 13.2 Imp gal)

0.1 kPa 

(1 mmHg, 0 

inHg)

0.2 kPa 

(1.5 mmHg, 

0.1 inHg)

0.4 kPa 

(2.9 mmHg, 

0.1 inHg)

0.4 kPa 

(2.9 mmHg, 

0.1 inHg)

0.4 kPa 

(2.9 mmHg, 

0.1 inHg)

0.4 kPa 

(2.9 mmHg, 

0.1 inHg)

GD(H4DOTC)-124

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

BM:DTC P0447 EVAPORATIVE EMISSION CONTROL SYSTEM VENT CONTROL 

CIRCUIT OPEN

1. OUTLINE OF DIAGNOSIS

Detect open or short circuit of the drain valve.
Judge as NG when the ECM output level differs from the actual terminal level.

2. COMPONENT DESCRIPTION

3. ENABLE CONDITION

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

(1)

Bobbin

(8)

Magnetic plate

(14)

Retainer

(2)

Coil

(9)

Shaft

(15)

Diaphragm

(3)

Diode

(10)

Plate

(16)

Movable core

(4)

Stator core

(11)

Valve

(17)

Spring

(5)

End plate

(12)

Housing

(18)

Cover

(6)

Body

(13)

Filter

(19)

O-ring

(7)

Yoke

Secondary Parameters

Enable Conditions

None

 

EN-02294

( 1 )

( 2 )

( 3 )

( 4 )

( 5 )

( 6 )

( 7 )

( 8 )

( 9 )

(10)

(11)

(12)

(13)

(17)

(14)

(15)

(16)

(18)

(19)

(19)

GD(H4DOTC)-125

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 as soon as a malfunction occurs.

• 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 1 second

Terminal output voltage when ECM out-
puts OFF signal

Low

Judgement Value

Malfunction Criteria

Threshold Value

Battery voltage

t 10.9 V

Elapsed time after starting the engine

t 1 second

Terminal output voltage when ECM out-
puts OFF signal

High

 

 

 

 

 

 

 

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