Subaru Legacy 2003 Service Manual page 778

FRONT CATALYTIC CONVERTER
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
9) Connect battery ground cable.
FU-00009
C: INSPECTION
1) Make sure there are no exhaust leaks from con-
nections and welds.
2) Make sure there are no holes or rusting.
EC(H4SOw/oOBD)-5