Anti-Theft System: Description

WARNING: Deactivate air bag system before performing any service operation. See appropriate AIR BAG RESTRAINT SYSTEM article. Refer to the following list. DO NOT apply electrical power to any component on steering column without first deactivating air bag system. Air bag may deploy.

1998 Land Cruiser, see AIR BAG RESTRAINT SYSTEM
1998 LX470, see AIR BAG RESTRAINT SYSTEM

NOTE: Anti-theft system may also be referred to as theft deterrent system. Rear (luggage compartment) door may also be referred to as the back door.

Anti-theft system is designed to sound horns, flash headlights and taillights for one minute if any side door or rear (luggage compartment) door is opened without using ignition key or remote control for keyless entry system, hood is opened, or battery is disconnected and reconnected when vehicle is locked. Anti-theft system will also lock any door not previously locked.

Anti-theft system consists of standard horns, anti-theft system horn, hood courtesy switch, anti-theft system Electronic Control Unit (ECU), SECURITY indicator light, ignition switch with key unlock warning switch, door lock assemblies with door unlock detection switches and door lock motors, door courtesy switches, door key lock and unlock switches, and a rear door key lock and unlock switch. See Fig 1.

Fig 1: Locating Anti-Theft System Components