When I use the key to unlock car [95 LT], none of the other door locks respond, have tried fuses but no help, anybody got any idea.

 

we need more info. What do you mean exactly, are you talking about the keyless entry, or just putting the key in the door and unlocking it?

 

When I use the key, only the drivers door unlocks the rest remain locked even the rear window. My keyless entry developed a short circuit and was too expensive to replace.

 

The rest should remain locked I believe until you push the unlock button.

 

Correct. A key only operates the lock in which it is used.

 

Interesting, on my 98 LS, when I use the key in the driver door, it locks/unlocks the hatch as well. Same goes with the hatch lock, (locks/unlocks the driver door). There's a switch in the outside driver door handle that operates the power lock relays.

 

Sounds like i am a little confused but when i use the key to open driver's side door when i hit unlock switch it does not open other locks, when I try to open rear door with key it does nothing, normally it opens all locks.