Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 322

GD(H4DOTC)-40

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

Z: DTC P0107 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE

CIRCUIT LOW INPUT

1. OUTLINE OF DIAGNOSIS

Detect the open or short circuit of intake manifold pressure sensor.

Judge as NG if out of specification.

2. COMPONENT DESCRIPTION

3. ENABLE CONDITIONS

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

(A)

Output voltage

(B)

Absolute pressure

(1)

Connector

(2)

Terminals

(3)

O-ring

Secondary Parameters

Enable Conditions

None

EN-01765

(B)

(A)

(2)

(3)

(1)

GD(H4DOTC)-41

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: 2000 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

≤ 0.822 V (Models without SI-DRIVE)

≤ 0.581 V (Models with SI-DRIVE)

Judgment Value

Malfunction Criteria

Threshold Value

Output voltage

> 0.822 V (Models without SI-DRIVE)
> 0.581 V (Models with SI-DRIVE)

GD(H4DOTC)-42

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

AA:DTC P0108 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE

CIRCUIT HIGH INPUT

1. OUTLINE OF DIAGNOSIS

Detect the open or short circuit of intake manifold pressure sensor.

Judge as NG if out of specification.

2. COMPONENT DESCRIPTION

3. ENABLE CONDITIONS

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

(A)

Output voltage

(B)

Absolute pressure

(1)

Connector

(2)

Terminals

(3)

O-ring

Secondary Parameters

Enable Conditions

None

EN-01765

(B)

(A)

(2)

(3)

(1)

GD(H4DOTC)-43

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: 2000 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

≥ 4.474 V (models without SI-DRIVE)

≥ 4.681 V (models with SI-DRIVE)

Judgment Value

Malfunction Criteria

Threshold Value

Output voltage

< 4.474 V (models without SI-DRIVE)
< 4.681 V (models with SI-DRIVE)