I have a 1995 Caddy Deville (4.9L, NOT Northstar). The power door locks do not open or close from any of the indoor switches. However, they work intermittently using the remote. Any suggestions?

The first place to check would be the master switch (driver's door). The RKE system only activates the main locking system as you would via the switch. It wouldn't be uncommon to have a bad wiring connection in the driver's door area. Possibly a fatigued wire in the harness itself.