Question about 2004 Mercury Mountaineer

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Car want say anything when i try and crank but the theft light on the dash keeps blinking when the ignition is on

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Is this the same key you always use? the theft is blinking because of incorrect key or the receiver part of the system is not working

Posted on May 14, 2009

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2 Answers

Anti theft wont let me start car


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.

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Engine no start


Do you have another key for the car? Try that. If not you'll have to have the keys programmed to the car at the dealer.

Mar 05, 2014 | 1999 Ford Crown Victoria

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My 2002 ford tuarus won't turn over dash keeps blinking theft i just chqnged the spark plugs and wires


How old is your battery ? Could be the battery out of charge and cant make the engine crank and thats why the light keep blinking I think. Jump the car and see if it runs. Good luck

Dec 05, 2010 | 2004 Ford Taurus

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Ran fine then would not start turns over fine the theft light is blinking changed fuel filter no luck and checked fuel shut off it is ok gl


if the theft light is blinking while you are cranking odds are the ignition is not recognizing the key. try another key if possible, may need dealer to reprogram key to ignition. hope this helps. please rate.

Nov 28, 2010 | 2004 Ford Escape

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The car wont start, the brake pedal is locked like the anti-theft is active, the anti theft light is flashing when the keys are in the ignition. when i try to turn it on it doesnt turn over, just makes...


TRY REPROGRAM KEY .PUT KEY IN IGNITION SWITCH TURN IGNITION SWITCH ON POSITION 20 SECONDS DONT START ENGINE WAIT 20 SECONDS TURN OFF SWITCH THEN TURN SWITCH BACK ON 20 SECONDS WATCH THE THEFT SECURITY LIGHT BLINKING.WHEN THEFT STOP BLINKING VECHICLE WILL CRANK.IF LIGHT STILL BLINKING.TRY FEW MORE TIMES KEY IN SWITCH ON POSITION FOR 20 SECONDS.MAKE SURE YOU HAVE THE CORRECT CAR KEYS IN SWITCH IF NOT WRONG SET OF CAR KEYS WILL SET OFF THEFT SECURITY SYSTEM.IF KEY RESETTING TRICK DONT WORK.CHECK BATTERY POWER MAKE SURE YOUR BATTERY HAS 12.5 VOLTS AND CHECK SECURITY THEFT FUSE.IF ALL LOOKS GOOD YOUR SECURITY HAS TO BE CHECKED OUT AT THE DEALERSHIP.

Oct 08, 2010 | 2006 Ford Fusion

2 Answers

ANTI THEFT LIGHT KEEPS FLASHING ON AND OFF


Did you steal it? I heard about you thieves who steal cars then put new transmissions in!!
Seriously, try this, it may help...
Put the key in the ignition, and turn forward all the way just before cranking. Then within 5 seconds, locate, press and hold in the valet/overide button, found under the dash area, (push button, spring loaded) until the installed LED (the blinking light) in your dash area goes on solid, and the siren chirps once. (Your valet switch might be the toggle (on/off) type. in this case, key on, flip switch in opposite direction, then turn the key off.) This should reset the alarm, and reset the grounded relay on the starter wire, allowing you to start the engine. At this point, the only thing working would be the keyless entry from the alarm, if it came equipped that way. Just Repeat these steps to place it back to usable armed mode. You may get 2 chirps, confirming it, and the lights may flash twice as well. That should do it. Check out www.explorerforum.com

Dec 04, 2009 | 1996 Ford Explorer

3 Answers

Dont know how to reset or bypass gm theft system car is not starting .It tries and quits.


this is one way to reset it :
first make sure the battery is fully charged , then do the following:
key in the ignition but do not crank the motor, just leave it at the
ignition mode for ten minutes ,then turn it off POSITION for 5 seconds then REPEAT again 2 more times. at the 3 rd time youre gonna notice the ANTI THEFT light on dash to blink. when doing the last step , remove key , inserted again and turn on motor , good luck , AJ

May 28, 2009 | 2001 Chevrolet Malibu

1 Answer

Anti theft dash light is blinking on my 1998 rodeo and will not start now. Tried unhooking battery to reset, but no luck. Will not crank from jumping off either. Battery is good, all lights and the radio...


I'm assuming its an original alarm or system that came from factory or dealer. When the light blinks is because the alarm is activated. Look underneath the radio the alarm brain might be there. There will be a label on it saying alarm or security system etc. Disconnect the harness to it and try operating your vehicle.

May 03, 2009 | 1998 Isuzu Rodeo

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