Volvo 850 1994 central locking
 

Greetings to all

I have a 1994 Volvo 850. The car has been very reliable, but on the weekend the battery died. I checked the battery terminals, tried charging, but it was obvious it was dead, so it was replaced. Now the central locks do not work. Fuse is fine, but replaced it anyway. I could live with the manual lock process, except the trunk key lock is seized so getting in the trunk and the gas cap is a problem. Any thoughts. Thx