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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Wont start flashing blinking light I have power Anti-Theft

Ford Explorer 2004  140008 miles
So I have power to the car. Lights turn on checked fuses Check the starter. All good. Anti-theft, I don't know. Light is blinking rapidly when I try to start it. Please help.
Robert from United States 4 years ago  
RO
14 reports 
Fedup from United States 2 years ago
Clear the codes and try to start it. Mine wouldn't start until I had cleared them.
Naynay from United States a year ago
Car won't start it turns over it's getting gas 2007 ford explorer XLT v6
Amie from United States 10 months ago
How do I clear the codes
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Anti-Theft system light is on

Ford Explorer 2001  146000 miles
Was driving the car and anti-theft light came on started flashing now it will not turn on we don't have the dealer key
Raelynn from United States a year ago  
RA
4 reports 
Gonza R from Argentina a year ago
That's a problem. You have to scan the vehicle and see what's going on. Maybe the receiver in the switch is damaged or your ECU has to be retuned to make it recognize the key again.
Monkey from United States 10 months ago
Same thing driving and car shut off try ti turn on the security light flashes code 16...but can't find the fuse for it and I don't have any burnt ones to tell...
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IGN problem or anti theft

Ford Explorer 2006 4.0 122000 miles
Will not do anything turn key on no dash lights anti theft light not blinking. Battery voltage is at 12.5 volts. Door chime not working with key in IGN with door open.
Fred from United States 6 years ago  
FR
9 reports 
Greasemonkey74 from United States 2 months ago
Did you ever find out what the issue was?
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Lost key and bypassing the Anti-theft so my fuel pump can turn on

Ford Explorer 1999 Explorer XL 5.0 208067 miles
My truck was stolen and when I got it back but they lost the keys to it and now I'm trying to bypass the Anti-theft because my fuel pump won't come on
Jose from United States 2 years ago  
JO
13 reports 
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