Subaru IMPREZA 2002 Service Manual page 466

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
SBF-5
V: DTC PO131
-
FRONT OXYGEN ( N F ) SENSOR CIRCUIT MALFUNCTION
(OPEN CIRCUIT)
-
DTC DETECTING CONDITION:
CAUTION:
Immediately at fault recognition
~0
e -
After repair or replacement of faulty parts, conduct J e a r Memory Mode <Ref. to EN(S0HC)-43, OP-
ERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(SOHC)BO, OPERATION, Inspec-
tion Mode.>.
WIRING DIAGRAM:
Y
EN1082
EN(S0HC)-142