Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 382
GD(H4DOTC)-280
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
FN:DTC P2419 EVAPORATIVE EMISSION SYSTEM SWITCHING VALVE CON-
TROL CIRCUIT LOW
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of the ELCM switching valve.
Judge as NG if out of specification.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
(1)
ELCM
(5)
Vacuum pump
(9)
Fuel tank
(2)
Switching valve
(6)
Drain filter
(10) Canister
(3)
Reference orifice (0.02 inch ori-
fice)
(7)
Purge control solenoid valve
(4)
Pressure sensor
(8)
Intake manifold
Secondary Parameters
Enable Conditions
None
EN-08957
M
(10)
(8)
(6)
(5)
(2)
(3)
(4)
(1)
(7)
(9)
GD(H4DOTC)-281
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: 2500 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
Battery voltage
≥ 10.9
Terminal output voltage when ECM outputs OFF signal Low
Judgment Value
Malfunction Criteria
Threshold Value
Battery voltage
≥ 10.9
Terminal output voltage when ECM outputs OFF signal High
GD(H4DOTC)-282
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
FO:DTC P2420 EVAPORATIVE EMISSION SYSTEM SWITCHING VALVE CON-
TROL CIRCUIT HIGH
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of the ELCM switching valve.
Judge as NG if out of specification.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
(1)
ELCM
(5)
Vacuum pump
(9)
Fuel tank
(2)
Switching valve
(6)
Drain filter
(10) Canister
(3)
Reference orifice (0.02 inch ori-
fice)
(7)
Purge control solenoid valve
(4)
Pressure sensor
(8)
Intake manifold
Secondary Parameters
Enable Conditions
None
EN-08957
M
(10)
(8)
(6)
(5)
(2)
(3)
(4)
(1)
(7)
(9)
GD(H4DOTC)-283
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: 2500 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
Battery voltage
≥ 10.9
Terminal output voltage when ECM out-
puts ON signal
High
Judgment Value
Malfunction Criteria
Threshold Value
Battery voltage
≥ 10.9
Terminal output voltage when ECM out-
puts ON signal
Low
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст