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Repair guides and support for the Expedition, a full-size SUV based on Ford's F-150 pickup truck. Closely related to the Lincoln Navigator.

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Anti-theft light is blinking and won't start

Truck won't start when anti-theft light is blinking. How do I reset it?

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want to bypass my faulty security alarm, light keeps blinking, already disabled the alarm. when I turn the key no dash lights come on

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want to bypass my faulty security alarm, light keeps blinking, already disabled the alarm. When I turn key no dash lights come on, Im sure alarm still has something to do with it. On my 99 Suburban

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1, Try turning the key and moving the shift from park to drive and back. Then try starting it again!

2. Try your spare key in case the chip has failed in your primary key.

3. If you get it started, go to an Auto Zone and get a computer read out to see if it will tell you what the issue is.

UPDATE 6/20/29

Use the trunk to first lock the driver door then unlock it.

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The shift from park to drive back to park worked!!!

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This diagnosis worked out for my 2002 expedition as well as my girls 2010 expedition also!! Hopefully some else can benefit from this information in the future, thanks!!!

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Do you start it while you shift at the same time or do you shift first and then started or do you started then shift so what is it what's the combo

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I have a 98 Ford F-150 , and I hooked up jumper cables to battery. Theft light came on and now won’t start! How to reset theft light? So truck will turn over?

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Blinking theift light want start

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Some anti-theft lights blink by default ( a small red light near the dash, for example is there to warn off thieves ). If this is some other type of light then disconnect your battery (negative first then positive) for 30 minutes and reconnect in reverse order (positive then negative). This should reset the computer. You will loose presets in your radio.

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Mine does the same thing. I just hit the "unlock" button on my keychain remote and it starts right up.

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Turn your key on and let it on unhook your battery for 20 minutes then with the key still on hook your battery back up.should fix your anti theft light.

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Try unhooking the positive battery cable with the switch on.Let unhooked for 15 minutes.Than hook cable back up with the key still on.than shut off and try to start.It worked on my f150.

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I use Ford fiesta but used different key to start after but couldn't start then we used the original key the red light comes on but the car doesn't start

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how do i reset anti theft on 95 explorer

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I have 2002 ford explorer how do I reset the anti thief on it ,please

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Unhook your positive cable with the key on for 30 minutes.then hook your cable back up with the key still on.that should take care of the light

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2010 ford egde “anti theft falshing fast" door ajar light stays on. Check wires under e brake pedal. Left foot wore threw 7 wires cut em clean. Reconnected wires protected with a pc of carpet rolled around the bundle of wires after. Fixed my problems

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I have a mercury mountaineer 99. I broke the immobilizer ring after my 1yo flushed my keys and well i didnt realize the immobilizer was even there like a rookie i broke it replaced it and ignition destroyed old tumbler . pulled toilet later found keys . managed to get old tumbler to work. So i have original key. Only 1 came with it !!! Light blinks like crazy will turn over no start . also code 11 blinks once and then a again a sec later . ive tryed everything read the codes no codes but the check engine light is on? It doesnt stay on for 1 sec let alone 3 when turning on? Its already been bypassed with a push butten start before i bought it . ran great till i lost the keys and switched out the ignition. Ive disconnect and pulled all kinds of fuses none are blown and relays check out. I found another relay box underhood passenger side under air filter ? Another one under the dash in the middle just above the gas pedal ? Somebody ive already lost enough money spending not working please help

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I have 2001 f150.I had the windshield resealed and then did a reset .I turn the key on and unhooked the positive battery cable for 30 minutes with the key still on I hooked the cable back up.took care of my anti-theft light.starts right up now.

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Lost chip for key now won't start

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I have a 2000 mustang five speed.. I lost the key and my boyfriend decided to drill out the ignition thinking we could start it by pushing it popping the clutch can anyone help me with the anti-lock system

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Throw the whole %#*@ man away

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I have a 1999 Ford Explorer and the theft light is flashing rapidly and the car won't start ?

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Try turning your key on and unhooked the positive battery cable for 15 minutes and hook your positive battery cable back up with the key still on.

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First off the time that the battery is disconnected keeps getting shirter by 5 mins secondly its a pats security system issue just turn the key to the on position for about ten mins your problem should go away

von

I had the same problem..I tried every one of these other methods with no luck. Took me a month to figure it out and luckily I could still start my vehicle and bypass using ignition key by touching something long and metal, e.g. A screwdriver, to these 2 bolts under the hood and start it that way but what a pain everytime I needed to start it.. I finally found this answer in an old forum somehwere and it worked!

Answer: Anti theft system had been activated, you need to push the 7/8 9/0 keypad buttons at the same time then enter the unlock code to disable the system. Sometimes this can also work by using the door key to first lock the drivers door then unlock it.

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Whats the unlock code

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I had an 01 expedition with anti-theft light blinking and took it to dealer to reset. I was told fuel pump was bad. Anti-theft shuts down the fuel pump so they're idiots. Transponder in on the ignition switch was not reading chip in key so I dug the chip out of the key and removed transponder from ignition and taped the chip to the transponder and stuck it up under the dash out of the way. No problem since.

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I have a 02 Ford Taurus not getting fire to the switch on the starter

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02 Ford Taurus not sending a signal to starter switch when I turn the key

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I have a 1997 Ford Expedition the anti-theft light is blinking. I lost the security chip out of the key. And I had two other transponder keys made and took it to the Ford Place and they wiped the computer system playing I guess but they said these keys are programmed to the truck but the anti-theft light is still blinking and will not start. I took the fuse out for the anti-theft light still won't start what else can be done

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I have the same problem the whole time I've been trying to find somebody else that has this issue I reset it and I can turn the truck right back on that only lasts for a matter of minutes then it goes right back into anti-theft mode how come nobody has mentioned this part is there a short or something causing it to go back into that mode every time cuz resetting its pointless if it's just going to keep doing it

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I have a 2001 f150. I took the ignition switch out and put it back in, now the theft light is blinking and it won’t start. What should I do?

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Pull the positive cable off the batterie n turn on headlights for 30 mins...if that don't work pull the com relay n fuse under drigrside dash

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Sorry phone is broken pcm relay under hood and the 30 amp under the dash n there is I believe two more high amp fuses under the hood as well to check I believe you can look in the owners manual to be assact.

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That's for both of you n if not you need to test to see if there is a short to the pcm

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Turn your key on and unhook the positive battery cable.let sit with key still on, for 15 minutes then hook cable back up, should start.

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I have a 2009 F150 Crew Cab Lariat my question is I did a flush on my radiator I drained 3 quarts of oil and put Lucas Oil the right amount but my friend had undid my battery the negative side only and then quickly put it back didn't think nothing of it finish doing the rest of the service on my truck while when I went to turn it on will not turn on I have power going through everything but there's no power going to the starter but I had start. checked and it was good everything's good everything's connected it just will not start I need help and from what I've read so far I'm pretty sure but I'm hoping you guys will like back it up with me and make sure I'm right that it might be my anti-theft system because my friend swears its not…

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Turn your key on and unhook the positive cable,let unhook for 15-20 minutes, and hook back up with the key still on.should start up.

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Ì got a 2002 ford f150 theif light. Flashing no crank no start now when I push on the horn the cluster lights go out an the theif light like there is a short in there any one no

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Close the doors and lock them then take your key put it in the driver door now lock, lock, unlock. And your theft system should be reset and off now you can crank it up

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That will turn off the theft sensor Will it work for a 99 expedition

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This anti theft crap is the biggest load of crap I've ever seen. Snowplowing, got sucked in ditch, got tugged 10 times to get it out drove home no problems, shut it off and open led door and alarm started blaring. Nothing would stop it. And now no crank no start. I had to remove the horn relay because it wouldn't stop blaring the horn. Absolutely embarrassing. Then turn key to run and jumper small terminal on solenoid to crank the engine over to start it. Seriously this is the dumbest thing I've ever seen on a vehicle in my life. This is my money making rig and now everytime the plow motor kills the engine i have to get out to restart it. Effen trash.

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1997 f150 5.4 btw.

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So you can disconnect the theft sensor then start your car with no chip in your key

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I broke the sensor inside of the key it broke out of the glass casing what do I do to get it started without it can I disconnect the death sensor and reprogram the ECU without the death sensor connected to it,?

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rayores wird auf ewig dankbar sein.
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