Will not start

Hello,

It sounds like the security system has lost its confirmation is the security light flashing? I would start by checking the fuses. Here is a guide and the fuse panel location and identification:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Here are the fuse panels and the security system wiring so you can see how the system works.

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken