Subaru Impreza 2003 Service Manual page 3104

SECURITY AND LOCKS
4. IMMOBILIZER SYSTEM
(1)
(3)
(1) Antenna
(2) Immobilizer indicator light (LED
bulb)
NOTE:
IMM ECM location for RHD model is symmetrically opposite.
GENERAL DESCRIPTION
(3) Immobilizer control module (IMM
ECM)
SL-6
(2)
(4) Transponder
(4)
SL-00175