If you are speaking of the entry code, they are all different. Look inside the trunk on the left trunk lid bar. If there is a sticker there, that is your code. Sometimes people put it in their owners manuals or place the sticker inside the glove box.
retrieve key less entry code for mercury marquis
No
To replace a car key for a 2004 Mercury Marquis, you can visit a dealership or a qualified locksmith that can cut and program a new key. If your key has a transponder chip, it will need to be programmed to match your vehicle's ignition system. Alternatively, you can use a key replacement service that specializes in automotive keys. Make sure to have your vehicle identification number (VIN) and proof of ownership handy when getting a replacement.
Turn the wheel and then try to start it with the key.
Maybe the chip in the key is defective.
Yes, this can be done by a Ford dealer.
yes
have a 1993 mercury villager. Don't have door key code can't find default code in glove box. Does anyone know what the default code is
$20.00 at advance auto parts
At least $75
the dealer has to program the key, they will need the car and original key.
Try "rocking" back and forth while turning ignition key