How can I find the keyless door lock code for Grand Marquis 2009?

Asked by Sep 20, 2014 at 04:36 PM about the 2009 Mercury Grand Marquis LS

Question type: General

Bought 2009 used Grand Marquis recently.  No keyless door code available.

6 Answers

The factory default code is stored in the ECU and can be retrieved with a high-end OBD scanner

360

It's on the left trunk hinge inside trunk

1,235

It's not in the trunk on mine, I've read that it's on the lock module inside the driver's door. I haven't removed the panel to get to it yet.

1 out of 1 people think this is helpful.
160

so what is the ECU

1,235

I think the Electronic Control Unit is inside of the driver's door, and should have the code on it. A dealer can retrieve your code with the VIN, for a fee.

Thanks to all. Not located on door panel or inside trunk. Had dealer to reset it with new one. $40+ fee from manufacturer, they said. Works great now.

Your Answer

Add photo

Related Questions

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1,808 nationwide Grand Marquis listings starting at $2,250.

ZIP:

Search Mercury Grand Marquis Questions

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 5,450
#2 kbro
kbro
Reputation 2,060
#3 Js08016
Js08016
Reputation 1,740
View All

Related Models For Sale

Used Ford Crown Victoria
11 Great Deals out of 1,066 listings starting at $2,995
Used Lincoln Town Car
34 Great Deals out of 1,834 listings starting at $1,750
Used Chevrolet Impala
578 Great Deals out of 31,559 listings starting at $799
Used Ford Mustang
458 Great Deals out of 45,641 listings starting at $1,999
Used Dodge Charger
400 Great Deals out of 28,096 listings starting at $1,988
Used Ford Taurus
234 Great Deals out of 20,408 listings starting at $2,258
Used Ford F-150
2,179 Great Deals out of 206,277 listings starting at $1,499
Used Cadillac DTS
49 Great Deals out of 1,621 listings starting at $1,995
Used Chrysler 300
403 Great Deals out of 19,882 listings starting at $1,000
Used Chevrolet Tahoe
564 Great Deals out of 28,965 listings starting at $1,699
Used Chevrolet Camaro
218 Great Deals out of 30,799 listings starting at $1,217

Used Cars For Sale

2010 Mercury Grand Marquis LS For Sale
4 Great Deals out of 90 listings starting at $2,799
2009 Mercury Grand Marquis LS For Sale
6 Great Deals out of 87 listings starting at $3,790
2008 Mercury Grand Marquis LS For Sale
7 Great Deals out of 101 listings starting at $2,250

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.