When my dog passes, are they services that pick up your dog for you?

Why not have your dog humanely euthanized at the vet so it can go peacefully and without pain. If you dont have the dog cremated and ashes returned to you then they have a service that picks up the dead animals.

Another couple of options are:

Call your local garbage collection service and ask if can dispose of the dog in the trash.

Call your city or county animal control and ask if they pick up dead animals.