99 cavalier auto - anti-theft taking my time

it started 3 weeks ago, car did not start, i have power...hear the fuel pump, the anti-theft is constant-no blinking. i moved the gear selector, and punched radio buttons and it started. not this time -- i can't figure it out

andy

I am assuming your car has the passkey system on it.

it does have a passlock system...i have tried since the last post an ignition switch... to no avail...i have lock cylinder...but...it is expensive, and appears difficult to install...i appreciate your responding...

andy