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Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual - part 345

GD(H4DOTC)-132

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

BV:DTC P0340 CAMSHAFT POSITION SENSOR “A” CIRCUIT (BANK 1 OR SIN-

GLE SENSOR)

1. OUTLINE OF DIAGNOSIS

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

When there is no camshaft position signal input continuously, judge as NG.

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

(D)

Camshaft position signal: When
normal, there will be 3 camshaft
position signals for every 2 crank-
shaft revolutions.

Diagnosis 1

Secondary Parameters

Enable Conditions

Battery voltage

≥ 8 V

Elapsed time after starting the engine

≥ 200 ms

Diagnosis 2

Secondary Parameters

Enable Conditions

Battery voltage

≥ 8 V

Starter

EN-06382

(A)

(C)

(B)

#1BTDC10 CA

#3BTDC10 CA

#2BTDC10 CA

#4BTDC10 CA

#1BTDC10 CA

50 CA

(D)

GD(H4DOTC)-133

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

5. DIAGNOSTIC METHOD

• Abnormality Judgment
Diagnosis 1

Judge as NG when no input of camshaft position sensor signal in TDC remains for 10 time(s).

Time Needed for Diagnosis: TDC × 10 time(s)

Diagnosis 2

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
Diagnosis 1

Judge as OK and clear the NG when the malfunction criteria below are met.

Time Needed for Diagnosis: TDC × 10 time(s)

Diagnosis 2

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: 32 ms

Judgment Value

Malfunction Criteria

Threshold Value

No camshaft position sensor signal input in TDC

≥ 10 time(s)

Judgment Value

Malfunction Criteria

Threshold Value

Camshaft position sensor signal

No input

Judgment Value

Malfunction Criteria

Threshold Value

No camshaft position sensor signal input in TDC

= 0 time(s)

Judgment Value

Malfunction Criteria

Threshold Value

Camshaft position sensor signal

Input exists

GD(H4DOTC)-134

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

BW:DTC P0341 CAMSHAFT POSITION SENSOR "A" CIRCUIT RANGE/PER-

FORMANCE (BANK 1 OR SINGLE SENSOR)

1. OUTLINE OF DIAGNOSIS

Detect the malfunction of camshaft position sensor property.

Judge as NG when the number of camshaft signals remains abnormal.

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

(D)

Camshaft position signal: When
normal, there will be 3 camshaft
position signals for every 2 crank-
shaft revolutions.

Secondary Parameters

Enable Conditions

Battery voltage

≥ 8 V

Elapsed time after starting the engine

≥ 200 ms

EN-06382

(A)

(C)

(B)

#1BTDC10 CA

#3BTDC10 CA

#2BTDC10 CA

#4BTDC10 CA

#1BTDC10 CA

50 CA

(D)

GD(H4DOTC)-135

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

5. DIAGNOSTIC METHOD

• Abnormality Judgment
Judge as NG when the status where the number of camshaft position sensor signal in two crankshaft revo-

lutions is other than 3 time(s).

Time Needed for Diagnosis: Two engine revs. × 4 time(s)

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
• Normality Judgment
Judge as OK and clear the NG when the malfunction criteria below are met.

Time Needed for Diagnosis: Two engine revs.

BX:DTC P0345 CAMSHAFT POSITION SENSOR “A” CIRCUIT (BANK 2)

1. OUTLINE OF DIAGNOSIS

NOTE:

For the detection standard, refer to DTC P0340. <Ref. to GD(H4DOTC)-132, DTC P0340 CAMSHAFT PO-

SITION SENSOR “A” CIRCUIT (BANK 1 OR SINGLE SENSOR), Diagnostic Trouble Code (DTC) Detecting

Criteria.>

BY:DTC P0346 CAMSHAFT POSITION SENSOR "A" CIRCUIT RANGE/PERFOR-

MANCE (BANK 2)

1. OUTLINE OF DIAGNOSIS

NOTE:

For the detection standard, refer to DTC P0341. <Ref. to GD(H4DOTC)-134, DTC P0341 CAMSHAFT PO-

SITION SENSOR "A" CIRCUIT RANGE/PERFORMANCE (BANK 1 OR SINGLE SENSOR), Diagnostic

Trouble Code (DTC) Detecting Criteria.>

Judgment Value

Malfunction Criteria

Threshold Value

Amount of camshaft sensor signal during 2 revs of crankshaft.

≠ 3 time(s)

Judgment Value

Malfunction Criteria

Threshold Value

Camshaft position sensor signal

= 3 time(s)

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