Subaru 2002 IMPREZA Service Manual page 545

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE I DIAGNOSTICS)
Step
CHECK ANY OTHER DTC ON DISPLAY.
Check Yes
Does the Subaru Select Moni- Inspect DTC
tor or OBD-II general scan
tool
P0244, P0245,
indicate DTC P0244, P0245, PO246 or P1244
PO246 or P 1244? using "List of Diag-
nostic Trouble
Code (DTC)".
<Ref. to EN(D0HC
TURBO)SO, List
of Diagnostic Trou-
ble Code (DTC).>
NOTE:
In this case, it is
not necessary to
inspect DTC
P1245.
No
Replace the
wastegate control
solenoid valve.
<Ref. to FU(D0HC
Wastegate Con-
trol Solenoid
Valve.>
TURBO)-41,
EN( DOHC TU RB0)-321