Question about 2002 Mercury Cougar

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I have a 02 Mercury cougar the emergency flashers flash and the horn sounds at anytime, doors lock, unlock,engine running, not running. Raining ,sunshine . help

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Check the power and ground connections that operate the computers on your car. This sounds more like an intermittent connection of some sort rather than an actually broken part.

Posted on Nov 13, 2009

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Posted on Jan 02, 2017

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What would cause my automatic door locks to lock and unlock and my emergency flashers to flash with the engine turned off and the key removed until the battery goes dead?


You did not post the year make and model but two things that can cause this are the push button for the door locks are bad or the body control module is bad.

Aug 30, 2014 | Cars & Trucks

1 Answer

New battery installed in 2002 mercury cougar, and the alarm goes off and the left and right blinkers flash.


It sounds like you have an aftermarket alarm system that has malfunction. Contact the manufacturer of the alarm for the reset procedure.

Apr 21, 2012 | 2002 Mercury Cougar

1 Answer

The remote to my 2002 cadillac deville dont unlock or lock my doors or open my trunk like it used to. my power locks dont work. i got in the car last week and on car display says theft attempt, the lights...


Either via an actual theft attempt or you (or someone with your keys) not realizing that you/they actually armed the vehicle and opened the door or trunk afterwards.

Essentially this sounds like the vehicle was entered after being armed and the proper precedures not met to reset it.

The car may just need to be locked from the outside with the key (not the remote or keyless entry) while the doors are closed and windows are up, and then also unlocked with the key...

However it sounds as though you have perhaps driven it since then. If this is the case

You may want to check all your fuses and replace the ones affected by the anti theft system.
Security - Pwr Locks - Horn - Pwr Trunk Release _ Int Lights - and maybe The Emergency Flasher as well.

Be sure and check under the Dash, Hood and under the Back seat.

Cadillac recommends after a theft attempt, the vehicle may need to be serviced. So I recommend going through the fuses first, even replacing the battery in your remote fob and then if the problems still persist. have the vehicle serviced.

Good Luck and Happy Motoring

Respectfully

Jun 12, 2011 | Cadillac DeVille Cars & Trucks

1 Answer

2001 Mercury grand marquis' keyless entry pad is flashing and beeping even when car turned off. Everything else is working normally.2nd time this has happened. 1st time disconnected battery and it stopped....


Same problem on my 2000. Apparently moisture gets into the pad and shorts it out. The constant lock/unlock and lights flashing (also headlights comin on if you have them on automatic) will run the battery down in no time. I solved it temporarily by unplugging the keypad plug behind the door trim. That will still give you the door lock/unlock funtions from your remote. Only fix is to replace the pad.

Oct 20, 2009 | 2004 Mercury Grand Marquis

2 Answers

Turn signal stopped working 1990 Mercury Cougar


I had the same problem and the flasher is not located in the fuse box because it is not a normal flasher. the cougar has an electronic flasher unit that is located on the left side of the center console. the best and cheapest place to order a new one is amazon.com. they run about $30-$40

Jun 07, 2009 | 1990 Mercury Cougar

1 Answer

Key fab stopped working now emergency flashers continue to go off


Sounds like a problem with the computer, or alarm system,
A budy of mine had a similar problem with the locks, it turned out that the alarm clicker was shorting out..

Mar 08, 2009 | 2005 Nissan Frontier

1 Answer

When I used the emergency flashers the turn signals stopped


Try down left hand side of steering column area.

Jan 20, 2009 | 1997 Mercury Cougar XR7

1 Answer

Locked out


you should have a little black box behind the pannel on the drivers door disconect the wires this will disable the centrel locking system till you get it fixed.

Dec 23, 2008 | 1995 Mercury Cougar

1 Answer

HORN WILL NOT SOUND BUT DOORS WILL LOCK WHEN I USE MY KEYLESS ENT


The title of you problem mentions the horn but the actual problem mentions the flashers? Which is it? You can turn the 'horn beep' feature on and off by simultaneously holding the lock and unlock buttons down on the remote for about 3 seconds or more. When the horn feature is turned on you will hear the horn, and when it turns off you will only see the lights flash.

Nov 12, 2008 | 2005 Nissan Xterra

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