Question about Mercury Grand Marquis
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Posted on Jan 02, 2017
This means that your key is not being recogonized.Ethier the chip in the key is bad or the patts transciever at the lock cylinder. Do you have a spare key? If not you will have to get 2 new keyss cut and programmed.
Posted on Feb 16, 2009
Have you another key and fob ?
Try lock/unlock cycle with new key + fob. Your key may be corrupted.
Try also just unlocking the car with the key (not the fob) as soon as you unlock the door put the key in the ignition immediately and see if the car starts.
If you have your radio code it may be worth trying a total reset (leave the car unlocked) disconnect the battery and leave for 20 mins. then reconnect, most systems will then reboot and this MAY help?
Failing all the above it looks like dealer time - more ££ss
good luck !
Posted on Nov 09, 2009
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
Posted on Dec 04, 2009
If the security or anti-theft light is flashing when you attempt to start your car, and the engine does not crank or does not start, you have an anti-theft problem. The system may not be recognizing your key's key-less entry signal, or there may be a fault in the anti-theft module or wiring.
There is a reset procedure to stop this anti-theft light flashing.many a times this helps The reset procedure is as follows:-- Reset the alarm by locking and unlocking the drivers side door.Do this a couple of times and then check it will reset the factory security system . If the reset procedure does not helps then its time to get the anti-theft system checked.There is a short circuit in the anti-theft system wiring. For more detailed help on this anti-theft light blinking issues please click on the link below http://www.aa1car.com/library/troubleshoot_antitheft_system.htm
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Posted on May 18, 2010
U HAVE ALREADY DONE THE RESET, IF THAT DOESN'T RESET IT THEN THE SYSTEM HAS A DEFECTIVE PART. SOUNDS LIKE THE DOOR LOCK SENOR IS DEFECTIVE ON THE DOOR LATCH INISDE THE DOOR.
Posted on Jul 04, 2010
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