door locks not working on my mercury grand marquis or trunk button

Asked by Jun 03, 2017 at 11:28 PM about the 2003 Mercury Grand Marquis GS

Question type: Maintenance & Repair

13 Answers


Did you find a repair for this problem? I'm having the same problem

1 of 1 people found this helpful.

Im having the same problem interior light, door lock, and trunk button not working can some ćone please help

1 of 1 people found this helpful.

I had a blown fuse in the box under the hood.

2 of 2 people found this helpful.

Do you no which fuse? May i ask


I don't remember you can check them with a test light to see if one is blown


Ok thank you


Its so sad i checked every fuse in car and under hood no luck maybe its the little square fuse under hood i dont no how to check them

1 of 1 people found this helpful.

There is also a module in the driver's door that may have gone bad

1 of 1 people found this helpful.

Will thay cause interior light and trunk not to work to Jim?


The door module


From what I've read about it yes it can cause the locks,interior lights and the trunk button not to work. Also the keyless entry is ran by that module


Ohmy door code is not even working it is so irritating


But my seats and my windows button still works and I think it's connected to the module to do that mean my module is good? I'm just trying to figure it out Jim

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