1993 celica alarm goes off all the time

usualy there is a switch on the driver and passener side, try disarming by unlocking drivers door with the key to disarm the factory alarm, or the passenger door. this should turn off the alarm if it is not aftermarket. the factory alarm will arm any time the door is locked by key or power door lock. good luck

the solonoid has probably gone or got stuck you will have to replace it

It sound the alarm relay or the alarm module is broken. Can you find the fuse for alarm system? If you can disconnect it.
You can find the alarm module under dashboard, disconnect it. Hope it can help

The fuse to the power door lock/unlock motors has blown. In order to get into the car and start it,
can't you just unlock the door with the key - then start it with the same key?
In the worst case, disconnecting the battery will disable the car alarm, so it can be towed without
the alarm blaring.

Alarm system teake up no more power than the memory on your radio.....un less it is triggered alot. Pul the negative off your battery and connect a simple 12v tyest light between the negative and the battery. The light should fade iout. If it stays on you have a short in the car. Pull fuses that are always on till the light goes out. Might be your alternator. Goal is to get the light to go out.

You will have to reset the security system. Call the dealership and they can give you the code. You need your vin# You might have to go there personally. It just depends.

try replacing remote batteries, but must have a second programmed key to reset first one in case its gets uncoded, best advise do not take long time to replace battery, if problem persist have a good honest mechanic inspect door key cylinder security switch if it is not disconnected, but before you do this, if right side front door or rear door has cylinder try opening vehicle from this doors, if they unlock vehicle and alarm doesn't go off you might have problems inside driver's door cylinder switch, on this year vehicle must use STAR SCANNER from chrysler jeep dodge to solve problems

lock and close the doors, then unlock the drivers door with the key

Not really a solution, sorry. But, my 93 celica had the same problems as your having now. Mine just worked when it wanted to. I had to end up having someone check it out. They basically said "Who the hell hooked up your alarm?" I have no clue, I figured it came like that, but I guess someone took it out and redid it. That may be your problem. Unhook your alarm or take it in and just ask someone.

Do you have a sound system? Most...as my previous owned did, like to somehow hook the sound system with the alarm. But of course when he sold me the car he took the system..leaving the alarm to go haywire.

Hold both buttons the Open and the Lock on your remote key for about 60 seconds, it should turn the lights inside the car and the problem should be fixed.
It worked on my Honda Accord 2004