Passenger seat fold down lever broken on 2003 Nissan Micra?

The lever on the side of the passenger seat that makes the seat fold down so you can get in the back has broken, it just goes up and down, and I cannot move the seat at all. I have opened up the back of the seat but cannot work out where the wire has been disconnected from? Has anyone come across this before and have you been able to fix it without buying a new seat?