Hello all

An odd thing, the central locking failed which I was able to fish out and remove a bit of corrosion on the connector. All three outlets expelling and sucking air now. However the boot/trunk lid won’t open, despite trying all the pipes in all outlets. Doors and petrol cap opening fine. Any ideas? Is there an electrical switch that could have failed too? Or have I been unlucky in that there has been a secondary mechanical failure at the same time somewhere..?