Subaru IMPREZA GD 2007 Series Manual page 2182

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Diagnostic Trouble Code (DTC) Detecting Criteria
BA:DTC P0340 CAMSHAFT POSITION SENSOR "A" CIRCUIT
(BANK 1 OR SINGLE SENSOR)
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of the camshaft position sensor.
Judge as NG when the number of camshaft signals remains abnormal.
2. COMPONENT DESCRIPTION
(A)
(B)
#1BTDC10 CA
(C)
10 CA
(A) Camshaft signal (RH)
(B) Camshaft signal (LH)
3. ENABLE CONDITION
Secondary Parameters
Voltage
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
Abnormality Judgment 1
When normal, there should be three cam signals per two engine revolutions. If a condition where it is not
three signals continues, It is judged as NG.
When the engine speed is 100 rpm or faster, if the following conditions are established it is judged as NG.
Judge as OK and clear the NG when the following criteria are not established.
Judgment Value
Malfunction Criteria
Number of camshaft sensor signals dur-
ing 2 revs.
Time Needed for Diagnosis: 100 engine revs.
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
50 CA
50 CA
#3BTDC10 CA #2BTDC10 CA
30 CA 30 CA
(C) Crankshaft signal
Enable Conditions
≥ 8 V
Threshold Value
< 3
GD(STI)-115
GENERAL DESCRIPTION
(D)
50 CA 50 CA
50 CA 50 CA
#4BTDC10 CA #1BTDC10 CA
(D) Number of camshaft position sig-
nals = When normal, there will be
three cam signals for every two
engine revolutions.
EN-05546