Subaru LEGACY 2002 Quick Reference Index page 618

IMMOBILIZER SYSTEM
Security and Locks
B: TEACHING OPERATION
The teaching operation is a procedure that must be carried out when an additional key is pur-
chased, the IMM ECM is replaced, or the keys are replaced. The procedure includes initialization
of the system and re-registration of the ID code. Once initialized, the system loses the ID code it
has retained so far and has no code until a new code is registered. An ID code can be registered
with an IMM ECM for up to four keys (transponders).
Any set of keys (four maximum) can be registered only with one IMM ECM. So, if an IMM ECU is
replaced with a new one, the keys having been used with the old IMM ECU cannot be used with
the new IMM ECU. Therefore, the keys must be replaced simultaneously with the IMM ECU.
The teaching operation is carried out using a select monitor and a special program by an autho-
rized person. Access to the program is strictly controlled for reasons of security.
SL-6