Key doesn't go into door lock

the battery is dead

Sounds like the security system is armed. It is designed to disable the starter. If you don't have a key fob for the alarm, try locking and un-locking the driver's door with the key to disarm. If that doesn't work, look for a very small black button or toggle switch that will either be taped to wiring under the driver's side or the dash, or mounted to the very bottom of the dash above the driver's legs.

It is not clear whether the problem is with the fob or the receiver in the car. You could try replacing the fob (they are available online from various sites) but the receiver will need to be programmed to use it, and that usually requires a trip to a dealership (unless you have access to the OEM service manual). Your best bet is to take it to a dealership and have them diagnose and repair the problem.

Yes it is,the drive door actuator being non op

Most likely is not a blown fuse because it is trying to work. Try to find the antenna instead as it maybe block from the signal. You did not say what year is the car.

I would try disconnecting the battery for five minutes like resetting a computer. Replace the battery in key fob. Body computer does strange things with lights hope it doesn't need to be replaced about 350 dollars if you have it replaced and any thing else doesn't work after they replace it tell them. I had two of them replaced for me because they are rebuilt

1) Try the other fob.
2) Driver door latch mechanism needs repair/replacement.

{: ) You didn't mention what vehicle you have, but anyway, for 2003 models, it is most likely a faulty liftgate actuator.

get in your car close door hit the unlock button then put key in the ignition cycle the key from off to on (STOP BEFORE START POSITION) cycle key off to on 7 times after the 7th trime the doors should lock the unlock automatically that means u are in trainning mode hit the unlock button on key fob. the key fob should now work if it doesn't then try changing batt