Subaru 2009 IMPREZA Service Manual page 814

Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BB: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)
#1BTDC10 CA
(B)
10 CA
(A) Camshaft signal
3. ENABLE CONDITIONS
Secondary Parameters
None
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
Number of camshaft signal = 2 is normal at two engine revolution.
#3BTDC10 CA #2BTDC10 CA
30 CA 30 CA
(B) Crankshaft signal
Enable Condition
GD(H4SO)-90
#4BTDC10 CA #1BTDC10 CA
EN-05541