if its your immobiliser then you cant disconnect it, you have to go to maindealers and have your key reprogrammed to your car, or get a car locksmith out that does key transponding, normally on the fords if your immobiliser is not responding then the red light on the dash flashines really fast i cant rememberif renaults got the same
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix cars.