Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual - part 337

GD(H4DOTC)-100

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

BC:DTC P0201 INJECTOR #1

1. OUTLINE OF DIAGNOSIS

Based on the self-diagnostic result of the injector driving IC, judge the injector driving circuit as normal or ab-

normal.

Injector driving IC detects the status of “fuel remains injected” or “fuel is not injected” as a malfunction.

2. ENABLE CONDITIONS

3. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

4. DIAGNOSTIC METHOD

• Abnormality Judgment
Judge as NG when the following conditions are established.

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 following conditions are established.

Time Needed for Diagnosis: Less than 1 second

Secondary Parameters

Enable Conditions

Battery voltage

≥ 10.9 V

Elapsed time after starting the engine

> 1 s

Engine speed

> 500 rpm

Injection time

≥ 1000 µs
and
< 120000000/engine speed – 1000 µs

Injection status

Not during fuel cut
and
Not during asynchronous injection controlled by crankshaft position 
sensor

Judgment Value

Malfunction Criteria

Threshold Value

Injector driving IC information

Malfunction

Judgment Value

Malfunction Criteria

Threshold Value

Injector driving IC information

Normal

GD(H4DOTC)-101

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

BD:DTC P0202 INJECTOR #2

1. OUTLINE OF DIAGNOSIS

NOTE:

For the detection standard, refer to DTC P0201. <Ref. to GD(H4DOTC)-100, DTC P0201 INJECTOR #1, Di-

agnostic Trouble Code (DTC) Detecting Criteria.>

BE:DTC P0203 INJECTOR #3

1. OUTLINE OF DIAGNOSIS

NOTE:

For the detection standard, refer to DTC P0201. <Ref. to GD(H4DOTC)-100, DTC P0201 INJECTOR #1, Di-

agnostic Trouble Code (DTC) Detecting Criteria.>

BF:DTC P0204 INJECTOR #4

1. OUTLINE OF DIAGNOSIS

NOTE:

For the detection standard, refer to DTC P0201. <Ref. to GD(H4DOTC)-100, DTC P0201 INJECTOR #1, Di-

agnostic Trouble Code (DTC) Detecting Criteria.>

GD(H4DOTC)-102

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

BG:DTC P0222 THROTTLE/PEDAL POSITION SENSOR/SWITCH “B” CIRCUIT 

LOW

1. OUTLINE OF DIAGNOSIS

Detect the open or short circuit of throttle position sensor 2.

Judge as NG if out of specification.

2. COMPONENT DESCRIPTION

3. ENABLE CONDITIONS

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

(1)

Throttle position sensor 1 signal

(3)

Throttle position sensor

(4)

Engine control module (ECM)

(2)

Throttle position sensor 2 signal

 

 

 

 

Secondary Parameters

Enable Conditions

Ignition switch

ON

Battery voltage

≥ 6 V

EN-01859

(1)

(2)

(3)

(4)

GD(H4DOTC)-103

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: 24 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: 24 ms

Judgment Value

Malfunction Criteria

Threshold Value

Sensor 2 input voltage

≤ 1.15 V

Judgment Value

Malfunction Criteria

Threshold Value

Sensor 2 input voltage

> 1.15 V