Operation CHARM: Car repair manuals for everyone.

Antitheft and Alarm Systems: Description and Operation

GENERAL DESCRIPTION
The circuit consists of the starter switch, anti-theft & keyless entry controller, antitheft horn, front door and tailgate key switch (detect and tamper) switch, door lock actuator for each door, engine hood switch, clutch start switch (M/T), ANTI-THEFT indicator light and mode switch (A/T).

The system operates as follows: After locking the starter switch and removing the starter key (this sets the alarm), if the door is unlocked in any way other than with the proper key, the headlights start flashing, the horn sounds, and the starter circuit is disabled. (However, the engine hood and all the doors must be locked and closed.)

Once the system has been placed in the warning or alarm condition, it can be released only when the starter switch is shifted from "OFF" to "ACC" by the starter key, or when the lock of the front door or the tailgate is released (to activate the detect switch) by the starter key.



CIRCUIT OPERATION

Anti-theft operation
The keyless entry and anti-theft control unit receives various input from switches in the four doors on the Rodeo, two doors on the Amigo, and tailgate to monitor any unauthorized entry. If notified of such case, the control unit will flash the headlights, the parking lights and interior lights, sound the anti-theft horn, and disable the starter.