1996 jeep grand cherokee limited won't start alarm keep flashing

I found this post that may help:
1996 Other Jeep Models Jeep Grand Cherokee Immobiliser

you have too unlock the alarm by turning one of the door locks try them all even the hatch as they are all different

I just had the same prblem. Reconnect your alarm first of all. You need to use your key bob "remote" to deactivate the alarm before starting. It is a feature "good one" i might add that should someone try to steal it the jeep will not start until u deactivate it w theke bob.

The alarm system on your Jeep Grand Cherokee is controlled by a small, approximately 3 inch square box that plugs into wiring under your dash on probably the drives side towards the middle. It is black in color and is printed with the words "alarm module. If you unplug that the alarm system will be permanently disabled and starting issues may be resolved as well.

You alarm system is causing your vehicle to do this.

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check for spark??...and ignition coil

Cycle the key in the door lock to disarm a factory alarm.

this happened to me recently with my 96 grand cherokee. the battery got drained by the alarm going off randomly at night. i pulled the fuse for the horn so at least my neighbors would only be bothered by flashing lights. then i couldn't jump the car because the alarm was still going off. i hooked my car to jump it to another car, and then i had to deactivate the alarm first by putting my key in the driver side door and unlocking the car. then i left it hooked to another car and still getting power but didn't jump it for at least 5 minutes in case the computer needed to reset. then it jumped fine. from what i've read online, this is a common problem that can be avoided if you stop using the power locks and always manually lock and unlock the doors with your key. its a little annoying, but apparently the power locks are connected to the alarm issue. hope the same works for you.

check your starter wire as mine was loose and did the same thing every time you interupt power to the alarm system it will flash the lights unlock the drivers door with the key and this will rearm the alarm and the jeep should start up if this is the problem rember to have good battery conections and a good batt first or else this will keep hapening also after 20 starts you may have to do the key thing again