DS09

Could not find anything on this. I have a 2009 Chevy HHR. The fuse keeps blowing for the power door locks. When I replaced the fuse it would work for a brief period but a different lock would freeze up and the fuse would blow again, every time. I pulled the fuse out and now use the locks manually but one of the locks will not move so I can not use that door. I do not believe that lock is bad because if I put another fuse in the same thing will happen to a different lock and the lock that was previously frozen works fine again.
Any ideas what this could be?
Thanks in advance.