ghead you're gonna have one hell of a time getting those locks working if you have no battery power. When the engine isn't running, everything electric runs off, you guessed it, 12V battery power.
Sorry, I'm being a smart ass. I'll stop.
In all honesty, my locks have never worked, same situation as your car just that I don't know when they stopped. If anyone knows why this happens, that would benefit us both.
Start the day, however, with a fresh cell. Work up from there.