Faulty alarm alarm wont go off and allow engine to start

I don't think the anti-theft is the problem.
On GM vehicles, the anti-theft system will not allow the engine to crank, or get fuel or spark. If it cranks, you have a different problem.

Lock all the doors then using the door key unlock the drivers side front door that should tell the alarm system to disarm

disconnect the alarm to see if problem still there.

did this happen only after the alarm was installed? if so then unplug connectors from the alarm control box. if it starts now then you either have something hooked up wrong (take another close look at instructions) or you may have an faulty alarm controller or you may have effected the vehicles oem alarm if so equipped.

alarm system has disabled start circuit- check manual on how to shut alarm off

Sorry about your celica, I do realize these cars are **** but none the less they are fixable. Disconnect the battery and wait 30 sec. Reconnect then turn the ignition to the on position allow the alarm 2 hrs to reconfigure itself and then start the engine. Sequence is now complete.

Check fuse # 46 and break lights bulbs
they are on same circuit as the Ignition switch on 1995 318 it maybe the same for yours

the jetta has a faulty alarm system from the factory i have been working on one in my shop. the alarm moddule is inside the dash behind the light switch and has a 10 pin connector and a 6 pin connector. this can be bypassed if you disconnect both connectors and jump the two large wire on the 6 pin connectors, these wires operate your starter. the car will start and run but your alarm will no longer be active. the door locks and everthing else will still work. the only issue i am having is the factory radio isn't working because it is controlled by the alarm. but worse case scenario i can use an aftermarket radio if need be.

i had this problem with mine just opening the door with the key seems to disengage the alarm so that the engine will start again