Subaru IMPREZA 2002 Service Manual page 414

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
C: DTC PO037
-
REAR OXYGEN SENSOR HEATER CIRCUIT MALFUNCTION
-
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode<Ref. to EN(S0HC)-43, OP-
ERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(S0HC)-40, OPERATION, Inspec-
tion Mode.>.
Two consecutive driving cycles with fault
WIRING DIAGRAM:
MAIN RELAY BAlTERY
A:@
EN1 083
EN(S0HC)-90