Subaru Legacy 2003 Service Manual page 745

FUEL INJECTION (FUEL SYSTEMS)
13.Engine Control Module
A: REMOVAL
1) Disconnect battery ground cable.
2) Remove lower inner trim of passenger side.
<Ref. to EI-39, REMOVAL, Lower Inner Trim.>
3) Detach floor mat of passenger seat.
4) Remove protect cover.
5) Remove nuts (A) which hold ECM to bracket.
6) Remove clip (B) from bracket.
(B)
7) Disconnect ECM connectors and take out ECM.
ENGINE CONTROL MODULE
FU-00009
FU-00514
FU-00315
(A)
(A)
FU-00316
FU(H4SOw/oOBD)-42
B: INSTALLATION
Install in the reverse order of removal.
CAUTION:
When replacing ECM, be careful not to use the
wrong spec. ECM to avoid any damage to the
fuel injection system.
Tightening torque:
5 N·m (0.51 kgf-m, 3.7 ft-lb)