Subaru 2009 IMPREZA Service Manual page 812

Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BA:DTC P0336 CRANKSHAFT POSITION SENSOR "A" CIRCUIT RANGE/
PERFORMANCE
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
(A)
#1BTDC10 CA
(B)
10 CA
(A) Cam signal
(2)
(1) Crankshaft position sensor
3. ENABLE CONDITION
Secondary Parameters
Battery voltage
Engine speed
#3BTDC10 CA
30 CA 30 CA
(B) Crankshaft signal
(1)
(2) Crank sprocket
Enable Conditions
8 V
< 4000 rpm
GD(H4SO)-88
#2BTDC10 CA #4BTDC10 CA
Number of crankshaft signal = 30 is normal.
(3)
#1BTDC10 CA
(3) Crankshaft half-turn
EN-05540
EN-05539