Well I just went out to my 2000,ls with no battery, turned the key to lock and unlock the drivers door only, so either my door is full of magical elves, or your wrong...
The very 1st LS that I test drove in 1999 had a dead battery and the driver's door would'nt unlock with the key and I remember that the salesman had to crawl through the trunk to open the door. I was only going on what I saw, I personally have never had a dead battery in my 00 LS, but the key cylinder rod connected to the spare door latch moves freely up/down(with no resistance) and you can hear the micro switch clicking, so maybe it's defective.