Subaru Impreza 2002 Service Manual page 3544

4. IMMOBILIZER SYSTEM
(1) Antenna
(2) Immobilizer indicator light (LED bulb)
NOTE:
IMM ECM location for RHD model is symmetrically opposite.
GENERAL DESCRIPTION
(3)
(4)
SL-5
Immobilizer control module (IMM ECM)
Transponder
SECURITY AND LOCKS
BO0010