Diesel Data: Automotive Repair

Theft Deterrent System















THEFT DETERRENT: THEFT DETERRENT SYSTEM: SYSTEM DIAGRAM

SYSTEM DIAGRAM










SYSTEM DESCRIPTION

1. THEFT DETERRENT SYSTEM DESCRIPTION
(a) The theft deterrent system is designed to deter break-in and theft. If an attempted break-in or theft is detected, a vehicle horns and security horn will sound; room light will light up; and hazard warning lights, taillights and headlights will flash continuously. The system uses the following cues to detect an attempted break-in or theft: 1) vehicle is forcibly entered, 2) engine hood is forcibly opened, 3) doors are unlocked without the use of a key, or 4) the battery cables are disconnected and then reconnected.
The system has 2 modes: active arming mode and passive arming mode Operation Check. Passive arming mode can be toggled ON and OFF Operation Check.
Each mode has 4 states; disarmed state, arming preparation state, armed state and alarm sounding state.
(1) Disarmed state:

- The alarm function is not operating.
- The theft deterrent system is not operating.
(2) Arming preparation state:
The theft deterrent system is not operating.
(3) Armed state:
The theft deterrent system is operating (60 +-5 seconds).
(4) Alarm sounding state:
The alarm function is operating.