Hi again everyone

My Fiat Ducato 2.8 2003 is still going and driving ok.. I was thinking of trading it in again, but after fixing all the little problems i had and everything seeming to work, ive decided to stick with this one and spend a little to finish it off, rather than lots on another van.

Got it booked in for a bit of welding on the sills just to tidy it up, and the brakes need looking at.. but the one thing that i havent been able to fix properly so far is the central locking..

When i got the van it didnt lock the side door, but after fiddling with the door connectors it locks fine with key only. The keyfob red light comes on when i press a button but nothing happens. Does anyone have any ideas?

If all the doors lock using the key in the lock, and none of the fuses have blown.. Would that be a faulty central locking ECU (the brown box one)??