Why is deck where PRND IS? anti-THEFT LIGHT stays on .car wont crank

That's why it won't crank , anti-theft system problem . Light flashing faster ! Anti-theft system disables the starter form working . Take it to a qualified repair shop. Anti-theft systems are tough for trained technicians to trouble shoot . Someone who has no clue it's impossible .

Anti- theft

The problem may not be with anti-theft but with a bad fuel pump,cam/crank sensor etc. Also, you may try unlocking the drivers door with the key. On most cars that is the standard method for disabling the security system.

check the anti theft system for your car There is probably a bad sensor or someone tried to steal it.

I have already gone into this.

your cars antitheft system is trying to prevent the car from being stolen so it is shutting it offf after it starts. go back over step by step you installation instructions make sure the ring around the ignition that comes with the remote starter is taped into the exact loacation it needs to be, or the cars own anti theft system will not notice it and will try to shut car off. its an anti theft feature. if this doesn't wotk you will not be able to use this remote starter. i ran into the same problem finally got it to work poperly.

Can you take out the anti theft fuse out (to disable it) see if it works?

My 2000 cavalier has done this for 6 months. You take your key out then open your door, wait ten minutes and the system resets itself and the car will start-annoying you bet!!!