Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. 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