You know, this question has been asked a bunch of times on here. I am not too sure if you can bypass it totally because I do not know what's the actual cause of your problem. If it is the transponder in the ignition lock, then yes you could bypass it but if your problem is in wiring or the BCM, no.
You can use an alarm or remote start bypass. Just hook it up the way it states but leave the trigger input unhooked. Once you find that everything is correct, start the car with the key while triggering the bypass. Then, cut the wires off of the car's security and wire it directly to the bypass. Then, use the keysense wire as the trigger for your bypass. That way, when it "sees" a key being inserted, it knows to activate and send out the code. This of course is if you are using part number 555L from Directed Electronics.
http://directed.com/guides/manuals/i...N555I_4-02.pdf