Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual - part 344

GD(H4DOTC)-128

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

BT:DTC P0335 CRANKSHAFT POSITION SENSOR “A” CIRCUIT

1. OUTLINE OF DIAGNOSIS

Detect the open or short circuit of the crankshaft position sensor.

Judge as NG when the crank signal is not input even though the starter was rotated.

2. COMPONENT DESCRIPTION

3. ENABLE CONDITIONS

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

(A)

Camshaft signal (RH)

(B)

Camshaft signal (LH)

(C)

Crankshaft signal

(1)

Crankshaft position sensor

(2)

Crank sprocket

(3)

Crankshaft half-turn

Secondary Parameters

Enable Conditions

None

 

EN-06283

(A)

(C)

10 

30 

30 

(B)

#1BTDC10 CA

#3BTDC10 CA

#2BTDC10 CA

#4BTDC10 CA

#1BTDC10 CA

50 CA

50 CA

50 CA

50 CA

50 CA

50 CA

(1)

(2)

(3)

EN-05539

GD(H4DOTC)-129

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: 3000 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

Starter switch

ON

Crankshaft position sensor signal

Not detected

Battery voltage

≥ 8 V

Judgment Value

Malfunction Criteria

Threshold Value

Crankshaft position sensor signal

Input exists

Battery voltage

≥ 8 V

GD(H4DOTC)-130

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

BU:DTC P0336 CRANKSHAFT POSITION SENSOR “A” CIRCUIT RANGE/PER-

FORMANCE

1. OUTLINE OF DIAGNOSIS

Detect for faults in crankshaft position sensor output properties.

Judge as NG when there is a problem in the number of crankshaft signals for every revolution.

2. COMPONENT DESCRIPTION

3. ENABLE CONDITIONS

(A)

Camshaft signal (RH)

(B)

Camshaft signal (LH)

(C)

Crankshaft signal

(D)

Number of crankshaft signals = 30 
is normal

 

 

 

 

(1)

Crankshaft position sensor

(2)

Crank sprocket

(3)

Crankshaft half-turn

Secondary Parameters

Enable Conditions

Battery voltage

≥ 8 V

EN-06384

(A)

(C)

10 

30 

30 

(B)

#1BTDC10 CA

#3BTDC10 CA

#2BTDC10 CA

#4BTDC10 CA

#1BTDC10 CA

50 CA

50 CA

50 CA

50 CA

50 CA

50 CA

 (D)

(1)

(2)

(3)

EN-05539

GD(H4DOTC)-131

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

5. DIAGNOSTIC METHOD

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

Time Needed for Diagnosis: 10 engine revs.

Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cy-

cles.
• 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

Cylinder number identification

Completed

Amount of crank sensor signal during 1 rev.

Not = 30

Judgment Value

Malfunction Criteria

Threshold Value

Cylinder number identification

Completed

Amount of crank sensor signal during 1 rev.

 = 30