Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service 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
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