Hey how are you
you will need a factory scanner or equivalent to run a diagnostic scan & retrieve fault codes from the alarm module in the vehicle.
is it the module, the receiver, hood switch , door switch, wiring etc.. , it could be number of reasons & there is not a fuse or a relay that you can pull out to disconnect it uunfortunatly
Check the hood and door latches for being stuck open, open and close few times , locate the hood switch in the hood lock mechanism and lubricate with parts cleaner
You can try A master Reset but if there is a problem it want work, usually does if it is glicth or reseting the module
Master reset Procedure
1- Disconect Battery Cables ( Negative & Positive Cables )you can use any electrical wire as an extension if battery cables don't reach .
2- Hold cables Together for 60 secs ,then let go
3- Wait 15 minutes
4- Make sure all doors are closed
5- Reconnect battery Cables
6- Lock & unlock the vehicles using the key from driver door side (if you have a key fob with no blade key, just lock & unlock using the key fob buttons)
7- Enter the vehicle and attempt to start
Please let me know if that works for you
ASE Certified Technician