Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 369
GD(H4DOTC)-228
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
EH:DTC P2017 TUMBLE GENERATED VALVE POSITION SENSOR 1 CIRCUIT
HIGH
1. OUTLINE OF DIAGNOSIS
Detect open or short circuit of tumble generator valve position sensor.
Judge as NG if out of specification.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
(1)
Rotor
(3)
Voltage (V)
(4)
Tumble generator valve opening
(°)
(2)
Return spring
Secondary Parameters
Enable Conditions
None
EN-01768
(3)
(4)
(1)
(2)
GD(H4DOTC)-229
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: 500 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
Output voltage
≥ 4.783 V
Judgment Value
Malfunction Criteria
Threshold Value
Output voltage
< 4.783 V
GD(H4DOTC)-230
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
EI: DTC P2021 TUMBLE GENERATED VALVE POSITION SENSOR 2 CIRCUIT
LOW
1. OUTLINE OF DIAGNOSIS
Detect open or short circuit of tumble generator valve position sensor.
Judge as NG if out of specification.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
(1)
Rotor
(3)
Voltage (V)
(4)
Tumble generator valve opening
(°)
(2)
Return spring
Secondary Parameters
Enable Conditions
None
EN-01768
(3)
(4)
(1)
(2)
GD(H4DOTC)-231
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: 500 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
Output voltage
< 0.264 V
Judgment Value
Malfunction Criteria
Threshold Value
Output voltage
≥ 0.264 V
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