Subaru Legacy IV (2008 year). Manual — part 618

GD(H6DO)-92

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

• Catalyst damage misfire (Misfire occurrence level damaging catalyst)

• Abnormality Judgement

Map 3

Time Needed for Diagnosis: 200 engine revs.
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
• Normality Judgement

Time Needed for Diagnosis: 200 engine revs.

Judgement Value

Malfunction criteria

Threshold value

Catalyst damage misfire judgment value

t Value of Map 3

Intake

air

(g(oz)/rev)

0.2

(0.01)

0.4

(0.01)

0.6

(0.02)

0.8

(0.03)

1

(0.04)

1.2

(0.04)

1.4

(0.05)

1.6

(0.06)

1.8

(0.06)

2

(0.07)

Engine
speed
(rpm)

700

90

90

88

76

68

68

68

68

68

68

1000

90

90

88

76

68

68

68

68

68

68

1500

89

88

80

64

56

56

56

56

56

56

2000

88

84

64

40

36

35

35

35

35

35

2500

88

80

56

36

30

30

30

30

30

30

3000

64

56

30

30

30

30

30

30

30

30

3500

50

40

30

30

30

30

30

30

30

30

4000

40

38

30

30

30

30

30

30

30

30

4500

50

30

30

30

30

30

30

30

30

30

5000

40

30

30

30

30

30

30

30

30

30

5500

40

30

30

30

30

30

30

30

30

30

6000

36

36

30

30

30

30

30

30

30

30

6500

32

32

30

30

30

30

30

30

30

30

7000

32

32

30

30

30

30

30

30

30

30

Judgement Value

Malfunction criteria

Threshold value

Catalyst damage misfire judgment value

< Value of Map 2

GD(H6DO)-93

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

BO:DTC P0302 CYLINDER 2 MISFIRE DETECTED

1. OUTLINE OF DIAGNOSIS

NOTE:
For the detection standard, refer to DTC P0301. <Ref. to GD(H6DO)-88, DTC P0301 CYLINDER 1 MISFIRE
DETECTED, Diagnostic Trouble Code (DTC) Detecting Criteria.>

BP:DTC P0303 CYLINDER 3 MISFIRE DETECTED

1. OUTLINE OF DIAGNOSIS

NOTE:
For the detection standard, refer to DTC P0301. <Ref. to GD(H6DO)-88, DTC P0301 CYLINDER 1 MISFIRE
DETECTED, Diagnostic Trouble Code (DTC) Detecting Criteria.>

BQ:DTC P0304 CYLINDER 4 MISFIRE DETECTED

1. OUTLINE OF DIAGNOSIS

NOTE:
For the detection standard, refer to DTC P0301. <Ref. to GD(H6DO)-88, DTC P0301 CYLINDER 1 MISFIRE
DETECTED, Diagnostic Trouble Code (DTC) Detecting Criteria.>

BR:DTC P0305 CYLINDER 5 MISFIRE DETECTED

1. OUTLINE OF DIAGNOSIS

NOTE:
For the detection standard, refer to DTC P0301. <Ref. to GD(H6DO)-88, DTC P0301 CYLINDER 1 MISFIRE
DETECTED, Diagnostic Trouble Code (DTC) Detecting Criteria.>

BS:DTC P0306 CYLINDER 6 MISFIRE DETECTED

1. OUTLINE OF DIAGNOSIS

NOTE:
For the detection standard, refer to DTC P0301. <Ref. to GD(H6DO)-88, DTC P0301 CYLINDER 1 MISFIRE
DETECTED, Diagnostic Trouble Code (DTC) Detecting Criteria.>

GD(H6DO)-94

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

BT:DTC P0327 KNOCK SENSOR 1 CIRCUIT LOW (BANK 1 OR SINGLE SENSOR)

1. OUTLINE OF DIAGNOSIS

Detect the open or short circuit of knock sensor.
Judge as NG if out of specification.

2. COMPONENT DESCRIPTION

3. ENABLE CONDITION

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

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: 1000 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

(A)

To knock sensor harness

(1)

Case

(3)

Piezoelectric element

(5)

Resistance

(2)

Weight

(4)

Nut

Secondary Parameters

Enable Conditions

None

Judgement Value

Malfunction criteria

Threshold value

Output voltage

< 0.238 V

Judgement Value

Malfunction criteria

Threshold value

Output voltage

t 0.238 V

EN-01707

(1)

(2)

(3)

(4)

(5)

(A)

GD(H6DO)-95

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

BU:DTC P0328 KNOCK SENSOR 1 CIRCUIT HIGH (BANK 1 OR SINGLE SENSOR)

1. OUTLINE OF DIAGNOSIS

Detect the open or short circuit of knock sensor.
Judge as NG if out of specification.

2. COMPONENT DESCRIPTION

3. ENABLE CONDITION

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

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: 1000 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

(A)

To knock sensor harness

(1)

Case

(3)

Piezoelectric element

(5)

Resistance

(2)

Weight

(4)

Nut

Secondary Parameters

Enable Conditions

None

Judgement Value

Malfunction criteria

Threshold value

Output voltage

t 4.714 V

Judgement Value

Malfunction criteria

Threshold value

Output voltage

< 4.714 V

EN-01707

(1)

(2)

(3)

(4)

(5)

(A)