Hi,
Thanks for taking the time to read this question. My problem is that I recently purchased a 405 turbo diesel which had been laid up for some time with its battery removed. On fitting a new battery, I found that the key fob won't operate the immobiliser alarm system, so that no amount of pressing will open the doors. The key fob is definitely original to the car, and the fob LED still comes on when the button is pressed, so the fob battery's probably OK. Will the key need to be reset to the alarm on the car somehow? Any advice on how to do that would be very gratefully received.
Many thanks,
Philip Andrews