Anti-Theft Systems: Description

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

NOTE: Anti-theft system may also be referred to as theft deterrent system.

Anti-theft system is designed to sound horns, flash headlights and taillights for one minute, and interrupt starter circuit if any front door, any sliding side door or back door is opened without using ignition key or remote control for keyless entry system, hood is opened, or if 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, theft-deterrent Electronic Control Unit (ECU), SECURITY indicator light, ignition switch with key unlock warning switch, door lock assemblies with door unlock detection switches, door courtesy switches, door key lock and unlock switches, back door lock assembly with door unlock detection switch and back door courtesy switch. See Fig 1.

Fig 1: Locating Anti-Theft System Components