Question about 2002 Ford Explorer Sport

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2002 ford explorer alarm keeps going off

Doors are closed and not ajar.  It started randomly, but now happens 4 to 5 times a night and several times during the day.

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  • music4jeff Jan 14, 2009

    yes the solution was helpful... I will take to dealer and respond later with results...

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Your alarm is based on cureetn sensing, not door ajar. Does you truck have a mechanical clock or anything plugged into your 12vdc sockets?

Posted on Jan 14, 2009

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Try disconnecting the battery cable to reset the alarm put the cable back on and put the key in the ignition in the on position for 10 minutes and the shut it off.it should stop the problem

Posted on Jan 14, 2009

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Welcome to Fixya! I assume that this Alarm is Factory Installed? This is a Common Problem on the Ford Alarm Systems. There is a Relay in the System that is Malfunctioning. Have the Dealership Trace this and Replace the Relay and it will Stop.

Posted on Jan 14, 2009

  • Travis Humphries
    Travis Humphries Jan 14, 2009

    No Problem! Happy to Help!

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1 Answer

Need to find fuse panel and door ajar light keeps coming on even thought all doors are shut.


There's a sensor attached to the internal latch on your Explorer's doors. Over time, debris or corrosion can cause the senson to stick "open". Just open your doors and spray a good lubricant into the latch area. Open and close the door several times. You should be good to go.

Good luck.

Jan 15, 2011 | 2002 Ford Explorer

1 Answer

My alarm on 2002 ford explorer goes on at random at night. Door ajar light comes on internittently. Any ideas on how to fix or disarm the Alarm?


most likely you have a door switch problem, you must take to shop to have it scanned, and they can tell you what door it is. most times it is drivers door, because that is the door that gets the most use.

Dec 19, 2010 | Ford Explorer Cars & Trucks

1 Answer

The alarm on my explorer keeps going off for no reason also it keeps beeping and saying door ajar....help


Mine started doing this about a year ago. My mechanic could not find the cause. I located the horn fuses under the dash and the emergency module under the hood and yanked them. Now the alarm still goes off at random, but it doesn't make any noise. That was the best I could do for the poor thing. Also I now have no horn, which has helped to teach my wife to be a more patient driver. She loved that horn.

Feb 26, 2010 | 2002 Ford Explorer

1 Answer

Electric windows and radio stopped working in my 2003 Ford Explorer XLT and the door ajar light randomly comes on.


check for fuse at the engine compartment for windows.For door ajar spray lubricant on all door latches and try to close/open several times.

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Jul 16, 2009 | 2002 Ford Explorer

1 Answer

Door ajar light will not go off and all doors are closed


I had this problem. I had to have a sensor in the door replaced.

May 04, 2009 | 2002 Ford Explorer

1 Answer

Explorer alarm going off randomly; additional electrical isues


Open drivers door and look at the hinge area. You will see a black rubber accordion looking tube going from the door to the a-pillar. This is the protector for the wiring harness. Wiggle it and see if this recreates your concern. If it does then pop it loose at both ends so you can inspect the wiring.Check each one carefully,feel them and tug on them.You will be looking for one that the wire inside the wiring insulation has broken,the two wires to really look at closley are the YE/BK and BK .
It may also possibly be a door ajar switch sticking and for this take some WD40 and shoot some in each latch on the side of the door and open and close the door several times and this usually un-sticks it.

Mar 20, 2009 | 2002 Ford Explorer

2 Answers

2002 Ford Explorer "Door Ajar" stays on and Alarm frequently goes


if the door ajar light is on then get a can of PB BLASTER at your local parts store and spray all the door latch assembleys really good and open and close each door about ten to fifteen times this will usually free up the ajar switch

Feb 01, 2009 | 2002 Ford Explorer

7 Answers

2002 ford explorer-alarm goes off in the middle of the night...no one around


Spray WD40 into all door latches, then shut and reopen doors till light and dinging stops.

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