Question about 2006 Mercury Grand Marquis
Ok there are 2 ways to retrieve the key-less entry code. First and easiest way is to carry it to a shop that has a scan tool that can read pid data from the driver's door module .They can pull up that pid and display your code right on the screen.
The second and hardest method is to remove the driver's door panel to access the driver's door module and there will be a tag on it with the 5 digit code.
Yes you can program your own code into it however you must have the original code .Input the original code then hit the number 2 button then put in your own 5 digit code.This code will remain until you disconnect the battery or battery goes dead then it reverts back to the original.
You can also go to this website and download your owners manual for free. Just pick owner guide in the left task bar and input your vehicle information.
Posted on Mar 09, 2009
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