Subaru Legacy 2002 Service Manual page 690

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
No.
1 CHECK ANY OTHER DTC ON DISPLAY.
2 CHECK CONDITION OF CRANKSHAFT
POSITION SENSOR.
Turn ignition switch to OFF.
3 CHECK CRANKSHAFT SPROCKET.
Remove front belt cover.
4 CHECK INSTALLATION CONDITION OF
TIMING BELT.
Turn crankshaft using ST, and align alignment
mark on crankshaft sprocket with alignment
mark on cylinder block.
ST 499987500 CRANKSHAFT SOCKET
Step
Does the Subaru Select
Monitor or OBD-II general
scan tool indicate DTC
P0335?
Is the crankshaft position
sensor installation bolt
tightened securely?
Are crankshaft sprocket
teeth cracked or damaged?
Is timing belt dislocated
from its proper position?
EN-173
Check Yes
Inspect DTC
P0335 using "17.
List of Diagnostic
Trouble Code
(DTC)". <Ref. to
EN-82, List of
Diagnostic
Trouble Code
(DTC).>
Go to step 3.
Replace crank-
shaft sprocket.
<Ref. to ME-57,
Crankshaft
Sprocket.>
Repair installation
condition of timing
belt. <Ref. to
ME-50, Timing
Belt Assembly.>
Engine (Diagnostics)
No
Go to step 2.
Tighten crankshaft
position sensor
installation bolt
securely.
Go to step 4.
Replace crank-
shaft position sen-
sor. <Ref. to
FU-30, Crankshaft
Position Sensor.>