Subaru Legacy 2002 Service Manual page 1426

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
No.
1 CHECK ANY OTHER DTC ON DISPLAY.
2 CHECK CONDITION OF CAMSHAFT POSI-
TION SENSOR.
3 CHECK CAMSHAFT SPROCKET.
Remove front chain cover. <Ref. to ME(H6)-
40, REMOVAL, Front Chain Cover.>
4 CHECK INSTALLATION CONDITION OF
TIMING CHAIN.
Turn camshaft using ST, and align alignment
mark on camshaft sprocket with alignment
mark.
ST 18231AA000 CAMSHAFT SPROCKET
Step
WRENCH
EN(H6)-219
Check
Does the Subaru Select
Monitor or OBD-II general
scan tool indicate DTC
P0340?
Is the camshaft position
sensor installation bolt
tightened securely?
Are camshaft sprocket
teeth cracked or damaged?
Is timing belt dislocated
from its proper position?
Engine (DIAGNOSTICS)
Yes
Inspect DTC Go to step 2.
P0340 using "List
of Diagnostic
Trouble Code
(DTC)". <Ref. to
EN(H6)-87, List of
Diagnostic
Trouble Code
(DTC).>
Go to step 3. Tighten camshaft
position sensor
installation bolt
securely.
Replace camshaft Go to step 4.
sprocket. <Ref. to
ME(H6)-47, Cam-
shaft Sprocket.>
Repair installation Replace camshaft
condition of timing position sensor.
chain. <Ref. to <Ref. to FU(H6)-
ME(H6)-42, Tim- 31, Camshaft
ing Chain Assem- Position Sensor.>
bly.>
No