Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 373
GD(H4DOTC)-244
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: 512 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: 2000 ms
Judgment Value
Malfunction Criteria
Threshold Value
Motor current
> 8 A
or
Drive circuit inner temperature
> 175°C (347°F)
Judgment Value
Malfunction Criteria
Threshold Value
Motor current
≤ 8 A
Drive circuit inner temperature
≤ 175°C (347°F)
GD(H4DOTC)-245
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
EV:DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW
1. OUTLINE OF DIAGNOSIS
Judge as NG when the electronic throttle control power is not supplied even when ECM sets the electric con-
trol throttle relay to ON.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
(1)
Engine control module (ECM)
(3)
Drive circuit
(5)
Motor
(2)
Voltage detection circuit
(4)
Electronic throttle control relay
Secondary Parameters
Enable Conditions
Battery voltage
≥ 11 V
Electronic throttle control relay output
ON
EN-01868
(2)
(3)
(1)
(4)
(5)
12V
12V
GD(H4DOTC)-246
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: 352 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: 2000 ms
Judgment Value
Malfunction Criteria
Threshold Value
Motor power voltage
≤ 5 V
Judgment Value
Malfunction Criteria
Threshold Value
Motor power voltage
> 5 V
GD(H4DOTC)-247
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
EW:DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH
1. OUTLINE OF DIAGNOSIS
Judge as NG when the electronic throttle control power is supplied even when ECM sets the electronic throt-
tle control relay to OFF.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
• When ignition switch ON → OFF
• Ignition switch OFF → ON (Only after clearing memory)
(1)
Engine control module (ECM)
(3)
Drive circuit
(5)
Motor
(2)
Voltage detection circuit
(4)
Electronic throttle control relay
Secondary Parameters
Enable Conditions
Battery voltage
≥ 6 V
Electronic throttle control relay output
OFF
EN-01868
(2)
(3)
(1)
(4)
(5)
12V
12V
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