Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
An engine immobiliser is an electronic device that acts toisolate the ignition system, the fuel system, the starter engine, or a combination of these three systems. As most new vehicles control these systems via the enginemanagement system, immobilisers on newer vehicles tend to interface with this component. The immobiliser will not allow thevehicle to be started withoutfirst receiving the correct signal from the person starting the vehicle. This signal can be communicated to the immobiliser unit in a number of ways:
*. Transponder: an electronic proximity device that converts electronically coded signals into radio signals. Requires no action by owner to set or unset. Usually built in to original keys.
*. Remote Key: usually a hand-held device which, when activated, transmits a radio or infrared frequency to control the immobiliser.
*. Electronic Key: a coded key, which enables the engine to start.
*. Coded Keypad: requires a code or PIN to be entered to disable the immobiliser.
*. Key Switch : a switching method to disable the immobiliser.