Anti theft system activated, how do I get my car started?

try unhooking battery for a few minutes,see if this helps,or pull ECM fuse in fuse box for a minute or two,hope this helps.

also make sure shifter is always in park.

Where is ecm fuse

i was wounderingn if you got it fixed and if so what exactly did u do because my grandfather just bought a car and is having the same problem

Generally factory anti theft can be disarmed by moving the key from off to acc (just before starting, turns power on) and back 3-6 times with a good key. If the key has a chip in it that has lost programming you may not be able to without having it towed to a dealer for reprogramming, but it's uncommon. If the key will not turn, it is not the correct key or has worn too much and a new one will need to be cut at a dealership the factory security will generally only cut fuel.

I'm looking for a van 1999 .how to stop the anti theft system

No start problem -fixed!!! Solved the problem of my 2005 Ford Freestar motor not turning over with no apparent cause. Among other possible causes, my anti-theft system locked my motor up (or prevented my starter from engaging the motor) after my battery ran dead and had to be replaced. The FIX is THIS - make sure the hood is closed (incase it has a sensor), close all the doors, lock the doors with the remote lock, and then start the car with the remote starter. The 1st time it tried to turn over and start but couldn't and made a loud noise. That worried me. But after that, it tried to start again (on it's own, I didn't push the remote start again) no loud noise that time, but still couldn't start when turning over. It tried on its own to start a 3rd time and stared right up, no problem. I unlocked the driver door with the key (not remote), put key in ignition and turned to on, engaged the brake to disconnect the remote, turned the van off, then started it back up with the key in the ignition and it started right up again with no problem. Working just fine since. I hope this works for someone else who has this problem. This was the 2nd time for me AFTER I ended up replacing the motor the 1st time. So pissed that Ford cost me that money and inconvenience. This anti-theft system is seriously flawed.

2002 FORD WINDSTAR THERFT LIGHT ON WON,T START IT

How do you reset the anti theft in a 2000 windstar van

2003 ford windstar theft light is on. Car won’t start what can I do? I replaced a PCM brain box and now this is the outcome

Thank you Car Gurus. You've made a major problem turn into a simple solution. Just disconnecting the battery cables for a few minutes solved my problem. Way to go! Thumbs up for you!

My car starts and runs a 2003 Ford Windstar but I can't get the anti-theft to go out keeps coming on but I can start and run the car how do I stop the anti-theft from blinking it does go out after I drive the car for about 5 minutes but every time I shut the car off and start it up it keeps blinking and blinking for 5 minutes after driving how do I fix it

I just change the relay #302 and start again, but first put some cleaner in the fuse box.to prevent corruption.

Yep unhooking the battery for a few minutes worked. Thanks everyone.

i have tried all the suggestions above and i still cant get it to start. anymore suggestions?