If yours is like mine, there are 4 or 5 circuit breakers along the front side of the fuse panel on the passenger side of the car. IIRC it's the 3d one down that controls both the power seats and power locks. If one is out but not the other then it's not the circuit breaker. If there's power to one, confirm the breaker by pulling it and seeing if that one quits then start tracing the wiring.