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Engine Immobilizer, How Effective Are They.pdf

September 11, 2008 · Filed Under Auto Parts & 3rd Parties  · Tags:

Excerpt: An engine immobilizer is an electronic device that acts to isolate the ignition system, the fuel system, the starter engine or a combination of these three systems. As most new vehicles controls these systems via the engine management system, immobilisers on newer vehicles tend to interface with this component. The Immobiliser will not allow the vehicle to be started without first receiving the correct signal from the person starting the vehicle. This signal can be communicated to the immobiliser unit in a number of ways:

  1. 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.
  2. Remote key - usually a hand held device which, when activated, transmits a radio or infrared frequency to control the immobilizer.
  3. Electronic Key - a coded key, which enables the engine to start.
  4. Coded keypad - requires a code or PIN to be entered to disable the immobiliser.
  5. Key Switch - a switching method to disable the immobiliser.

Contents:

  • Overview
  • Encrypted Immobilisers
  • Read Only Immobilisers
  • Encrypted - Radio Remote Immobilisers
  • Ignition Dependent Immobilisers
  • Timed Override - Ignition Dependent Immobilisers
  • Radio Remote Immobilisers
  • Encrypted - Radio Remote - Timed Override Immobilisers
  • Western Australian Compulsory Immobilisers Scheme
  • Conclusion

Download free Engine Immobilizer, How Effective Are They.pdf (39 pages pdf file, 0.3 MB).

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