Anti-theft Immobilizer problems

Anti-theft Immobilizer
Anti-theft Immobilizer: Security system that prevents the car from starting if the ignition key is not the correct one.
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New alternator and anti theft won't let me start the car

Ford Focus 2010 Ford focus  0 miles
I put in new alternator and now anti theft is flashing new battery and still no crank
Angel from United States 2 years ago  
AN
2 replies 
Fedup from United States 2 years ago
Clear the codes, then start
Bee1 from United States 2 years ago
Also to reset the anti theft. Shut all doors. Take key out in lock turn as to un lock but don't leave key for 40 to 60sec. Than do the same turning to lock poss. Get in and start. It worked for my 2003
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Theft fuse car won't start

Ford Focus 2005 Ford 195000 miles
Anti theft fuse to turn anti theft off
1
Angel from United States 10 months ago  
AN
2 reports 
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