anti theft light blinking?

You have an active theft issue and basically the vehicle thinks it is being stolen. So we need to start with checking to make sure your remote batteries are okay. Here is a guide that will help on a similar fob:

https://www.youtube.com/watch?v=Z6pUn73GvN4&pp=sAQA

Next here is a guide that will help with resetting the system:

https://www.2carpros.com/articles/how-to-reset-a-security-system

If this is okay then we need to next starting running through the testing that is supplied below. Basically we need to run the diag for this system which is described below and find out what is causing the system to activate. This is a self test so please follow these instructions and let us know what you find.

Thanks