How do I disable a Renault immobilizer?

Answer 1

This answer only applies to Renaults with a IR- remote key probably makes between year 95-98.

There are 2 versions of immobilizers during these years. You must be able to start the car at least once with key or emergency code to apply theese fixes.

Version 1:

Enter the emergency code and start the car, cut and isolate the Data wire between the fusebox (ECU) and the Motor Control Unit (MCU) (or dieselvalve if it's a diesel) while the motor is running. Done :) You will probably also want to cut the wire to the annoying LED.

Version 2:

You will need to install a electronic substitute for the immobilizer, they are called Record/playback modules (RPM)

Note:

You might need to inform your insurance company of this alteration. Renault will not perform the above soulutions. If you don't have a emergency code there are free calculaters on the internet or get it from your Renault dealer. This answer is not a step by step instruction, just letting you know it's possible. Version 1 worked on my wife's 98 Scenic.