Mitsubishi 1993 3000GT, Technical Information Manual, Page: 203 / 216

OPERATION
16F0295
THEFT-ALARM SYSTEM
When the theft-alarm system has been armed by a fixed
sequence for locking the doors without the key, if
thereafter a door, the tailgate or the hood is opened in
an unauthorized way, the horn will sound intermittently
for a period of 30 seconds, thus providing audible
warning signals.
Furthermore, the starter circuit is interrupted in such a
way that the engin'e cannot be started, if the ignition key
is not used.
Note that this system is controlled by the Electronic
Control Unit (ECU) as one function of the ETACS
(Electronic Time and Alarm Control System).
The system is composed of the components described
below.
NOTE
The "ECU" (Electronic Control Unit) indicates the
ETACS control unit.
16F0296
ELECTRICAL -
ETACS
7-31