How can I fix my Peugeot 406 immobiliser?

The immobiliser on my Peugeot 406 (97 P reg) won't light up. The wires behind the keypad unit were broken and have been repaired, but there's no life showing at the keypad, so the car can't start.

Any ideas anyone?
Joma Livi, November 2005


done
Got it fixed with the help of a friendly auto-electrician.

Joma Livi, December 2005
link Click here to see other fixes for Peugeot.