Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 339

GD(H4DOTC)-108

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

BJ:DTC P0244 TURBO/SUPER CHARGER WASTEGATE SOLENOID “A”

RANGE/PERFORMANCE

1. OUTLINE OF DIAGNOSIS

Detect the malfunction of wastegate control solenoid valve function.

Judge as NG when becoming high wastegate pressure.

2. COMPONENT DESCRIPTION

3. ENABLE CONDITIONS

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

(1)

Coil

Secondary Parameters

Enable Conditions

None

EN-01772

(1)

GD(H4DOTC)-109

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

5. DIAGNOSTIC METHOD

• Abnormality Judgment
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

Time Needed for Diagnosis: 2000 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
• Normality Judgment
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

Judgment Value

Malfunction Criteria

Threshold Value

Intake manifold pressure

≥ Value from Map

Map (models without SI-DRIVE)

Barometric pressure (kPa (mmHg, inHg))

58.7

(440, 17.3)

77.3

(580, 22.8)

89.3

(670, 26.4)

96

(720, 28.3)

98.6

(740, 29.1)

101.3

(760, 29.9)

Engine
speed
(rpm)

1000

109.5

(822, 32.3)

127.4

(956, 37.6)

138.6

(1040 , 40.9)

138.6

(1040 , 40.9)

138.6

(1040 , 40.9)

138.6

(1040 , 40.9)

2000

139.1

(1044, 41.1)

163.4

(1226, 48.3)

178.6

(1340 , 52.8)

178.6

(1340 , 52.8)

178.6

(1340 , 52.8)

178.6

(1340 , 52.8)

2400

169.7

(1273, 50.1)

200.6

(1505, 59.3)

219.9

(1650 , 65)

219.9

(1650 , 65)

219.9

(1650 , 65)

219.9

(1650 , 65)

4000

169.7

(1273, 50.1)

200.6

(1505, 59.3)

219.9

(1650 , 65)

219.9

(1650 , 65)

219.9

(1650 , 65)

219.9

(1650 , 65)

5000

144.1

(1081, 42.6)

173

(1298, 51.1)

193.9

(1454 , 57.3)

200.7

(1506 , 59.3)

217.9

(1635 , 64.4)

217.9

(1635 , 64.4)

6000

138.6

(1040, 40.9)

166.6

(1250, 49.2)

187.2

(1404 , 55.3)

194.6

(1460 , 57.5)

213.3

(1600 , 63)

213.3

(1600 , 63)

kPa (mmHg, inHg)

Map (models with SI-DRIVE)

Barometric pressure (kPa (mmHg, inHg))

59.3

(445, 17.5)

68.6

(515, 20.3)

78

(585, 23)

92

(690, 27.2)

96

(720, 28.3)

98.6

(740, 29.1)

Engine
speed
(rpm)

1000

124.4

(934, 36.8)

135.3

(1015, 40)

135.3

(1015, 40)

135.3

(1015, 40)

135.3

(1015, 40)

135.3

(1015 , 40)

2000

169.4

(1271, 50)

185.3

(1390, 54.7)

185.3

(1390, 54.7)

185.3

(1390, 54.7)

185.3

(1390, 54.7)

185.3

(1390 , 54.7)

3000

158.2

(1187, 46.7)

214.6

(1610, 63.4)

214.6

(1610, 63.4)

214.6

(1610, 63.4)

214.6

(1610, 63.4)

214.6

(1610 , 63.4)

4000

155.8

(1169, 46)

195.5

(1467, 57.7)

205.4

(1541, 60.7)

225.3

(1690, 66.5)

225.3

(1690, 66.5)

225.3

(1690 , 66.5)

5000

145.8

(1094, 43.1)

169.7

(1273, 50.1)

185.6

(1392, 54.8)

215.3

(1616, 63.6)

225.3

(1690, 66.5)

225.3

(1690 , 66.5)

6000

117.8

(884, 34.8)

156.3

(1173, 46.2)

168.5

(1264, 49.8)

205

(1538, 60.5)

215.1

(1614, 63.5)

229.3

(1720 , 67.7)

kPa (mmHg, inHg)

Judgment Value

Malfunction Criteria

Threshold Value

Intake manifold pressure

<Map Value of Map – 22.4 kPa (168 mmHg, 6.6 inHg) (models without SI-DRIVE)
<Map Value of Map – 20 kPa (150 mmHg, 5.9 inHg) (models with SI-DRIVE)

GD(H4DOTC)-110

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

BK:DTC P0245 TURBO/SUPER CHARGER WASTEGATE SOLENOID “A” LOW

1. OUTLINE OF DIAGNOSIS

Detect open or short circuit of the wastegate control solenoid valve.

Judge as NG when the terminal output voltage remains Low during outputting the duty signal.

2. COMPONENT DESCRIPTION

3. ENABLE CONDITIONS

4. GENERAL DRIVING CYCLE

Perform the diagnosis continuously after starting the engine.

(1)

Coil

Secondary Parameters

Enable Conditions

Battery voltage

≥ 10.9 V

Elapsed time after starting the engine

≥ 1 second

EN-01772

(1)

GD(H4DOTC)-111

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

5. DIAGNOSTIC METHOD

Abnormality Judgment
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

Time Needed for Diagnosis: 640 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
Normality Judgment
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

Judgment Value

Malfunction Criteria

Threshold Value

Terminal output voltage

Low

Duty ratio of wastegate control

< 75%

Judgment Value

Malfunction Criteria

Threshold Value

Terminal output voltage

High