door locks trunk button keyless entry not working

550

Asked by Sep 11, 2013 at 04:38 PM about the 2004 Mercury Grand Marquis GS

Question type: Maintenance & Repair

6 Answers

21,825

Are you talking about a Remote Keyless Entry or the buttons on the car itself? Remote: try a new battery. Built into the car: start with the fuse box.

20 out of 20 people think this is helpful.
550

the remote and buttons nothing is working but the key. also passenger window buttons not working can only open windows with driver door controls. lock is off and I have replaced battery in remote and checked fuses. what is built into the car?

27 out of 27 people think this is helpful.
21,825

It's quite likely that the passenger's window switch has failed. On many Ford, Lincoln and Mercury products, there is a 5 button keypad on the driver's door or on the "B" pillar that will let you punch in a code to unlock or lock the doors or pop the trunk. I'm starting to think that you may have an aftermarket alarm. Does it have a Mercury logo on the key fob? If not, it's probably aftermarket and I have no idea how to address it.

6 out of 6 people think this is helpful.
550

thanks anyway it is mercury product my family has owned car since it was new in 2004.everything was working last week. keypad doesn't work on door or trunk. passenger and back seat windows controls don't work. trunk button on drivers door also stopped working along with remote. I guess its a job for a ford dealer. THX

13 out of 13 people think this is helpful.
550

The problem was a fuse but inside the power distribution box. number 8 drivers door module. Thanks for ur input. now I can work on my 68 Galaxie500 less electronics to deal with.

15 out of 15 people think this is helpful.
150

Which number is the fuse

15 out of 15 people think this is helpful.

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