have a 2005 chevy Malibu classic 4 cylinder that the automatic door locks are not working and the horn beeps intermittently. Feel it is a relay switch or fuse. What do I need to replace and how much would it be? part number? This just started in the past two weeks. Fund our battery was bad so we replaced it but the door locks problem are still there. So I am assuming it is a switch or fuse. where is the fuse box for these locks?

 

what exactly is "not working right"? the horn and locks are completely different circuits unless they share a ground