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How to Remove an Aftermarket Immobiliser System from a Car?

Model: (Various brands) Various
Part: Checks and maintenance

Video tutorial

The procedure described involves disabling an aftermarket immobiliser system, which is very different from disabling the factory immobiliser, a complex operation not recommended for a hobbyist. First, disconnect the negative terminal of the battery.

Locate the module under the dashboard (usually a black box) and look for wires that have been cut and whose ends are connected to the alarm module (which works by interrupting a circuit, such as the fuel pump supply). Cut the wires going to the module and restore the original connection of the wires: the video shows the use of a "crimp" to reconnect them.

After joining the wires, insulate them with electrical tape, remove the old module, reconnect the battery, and check that the car starts and functions correctly.


Posted on 11 October 2026 by ScegliAuto


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