alarm keeps going off?

2002 FORD EXPLORER
6 CYL • 4WD
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JUAMEELAH HENDERSON
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I own a ford explorer 2002 my car alarm keeps going off. what could be the problem?
Apr 28, 2011 at 1:49 PM
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KHLOW2008
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Such problems are usually due to a door out of adjustment or a missing door switch cap. If any of the door ajar indicator flickers while driving, that should be the door switch to look at. You can pull on each door when the alarm is on as well. The other common trigger would be the hood switch. Check its adjustment.
Apr 28, 2011 at 2:09 PM
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CJ MEDEVAC
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Try manually locking the vehicle and unlock the drivers door with the key, that should reset the alarm.

This guide should help

https://www.2carpros.com/articles/how-to-reset-a-security-system

Please run down this guide and report back.

Apr 28, 2011 at 8:56 PM
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KENNETH D SABOL
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The theft light on the dash is blinking will this prohibit the vehicle from starting??? and how can i get it to stop blinking???
Jan 13, 2020 at 8:16 PM (Merged)
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FIRESTORM
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Yes, is is blinking rapidly? Under normal conditions it should flash every 2 seconds. When you turn the key over, but not start it, after 3 seconds the theft light should "prove out".

If it is blinking rapidly you have a problem with the PATS system. You will have to take your vehicle to the dealership to solve this problem. Some locksmiths have the tools to work with it as well.
Jan 13, 2020 at 8:16 PM (Merged)
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LETAWMS
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Went to get my truck inspected and they hooked up whatever the cord is under the steering wheel and after that the car would not start. when you turn the key and all lights come on, the 'theft' light blinks. The theft light has never come on before. All console lights, radio, signal lights, etc come on but the car will not start. Tried engaging then disengaging the alarm; no help. Someone mentioned that there is some sensor thats located in the door panel. Is there a way to disengage the alarm w/o having to take it to a dealer? I hate to have to pay towing charges AND high dealer charges for something that may be simple?
Jan 13, 2020 at 8:16 PM (Merged)
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JACOBANDNICKOLAS
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If your 1999 Ford Explorer is experiencing issues starting after the inspection, and the "theft" light is blinking when you turn the key, it's possible that the vehicle's anti-theft system has been triggered.
Jan 13, 2020 at 8:16 PM (Merged)
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EXPLORER1989
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battery has a full charge. When you get in the truck there is no power the anti theft light doesn't come on either. the truck seems to be completely dead. I tried jumping it directly from the battery to the starter and got nothing. Also connected battery charger directly to the battery cables and still got nothing. I have no idea where to from there.
Jan 13, 2020 at 8:16 PM (Merged)
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OHYEA
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Your battery probably has a dead cell? Did you use a multimeter to check the voltage of the battery to see if it fully charge? Should be at 12.4v. Places like autozone can test your battery for free.
Jan 13, 2020 at 8:16 PM (Merged)
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OHYEA
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If a battery will not accept charge even from like charging devices then it is most likely a dead cell battery which will require you to buy a new battery.
Jan 13, 2020 at 8:16 PM (Merged)
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CARADIODOC
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Follow the smaller positive battery wire to the under-hood fuse box and be sure that connection is clean and tight. That will solve 99 percent of the dead electrical system problems. For the other one percent, follow the smaller negative wire to the body and be sure that one is tight and not rusty.

What you jumped to the starter, and the results, depends on which terminal you're talking about. If further testing is needed, you'll need a test light or a digital voltmeter.
Jan 13, 2020 at 8:16 PM (Merged)
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JC1
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Have 98 ford explorer fuel pump went out put new in now the anti theft is blinking. have done the lock unlock trick to reset and still wont start. Have unhooked battery for 15 mins, put key in outside door left to right and the anti theft is blinking. car will not start
Jan 13, 2020 at 8:16 PM (Merged)
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SATURNTECH9
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Let's try a hard reboot of the system. Remove the negative battery cable and hold it to the positive terminal this will discharge the capacitors. Here is a guide to yelp you


https://www.2carpros.com/articles/how-to-reset-a-security-system

Please run down this guide and report back.
Jan 13, 2020 at 8:16 PM (Merged)
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JC1
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Yep that worked perfect! I love this site.
Jan 13, 2020 at 8:16 PM (Merged)
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TONY45UK
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tony45uk serviced angle crank sensor tested all socket test resistor or for resistance service wasjust a good clean this technician was very ofey my symptom were access to car allowed would turn over but not start antitheft light blinking fuel pump not working now allis well
Jan 13, 2020 at 8:16 PM (Merged)
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DAN S
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i have a 97 explorer and the theft system alarm will go off on its own , putting the key in the ignition and turning it on has no effect
the only way to get it to stop is to pull the battery cable off , as soon as you put the cable back on it will go off again
any help would be appreciated
Jan 13, 2020 at 8:16 PM (Merged)
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RANMUCK
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[quote:dc8be12165="dan s"]Electrical problem
1997 Ford Explorer V8 All Wheel Drive Automatic 133000 miles

i have a 97 explorer and the theft system alarm will go off on its own , putting the key in the ignition and turning it on has no effect
the only way to get it to stop is to pull the battery cable off , as soon as you put the cable back on it will go off again
any help would be appreciated[/quote:dc8be12165]

I have the same problem , (1998 explorer) , I turn the key off and on , then pause in the on position watching each time for the alam light to stay on .
If its blinking , start over again until the light stays on , this means the alarm is deativated , you now should be able to turn the key all the way and the truck should start . Works ever time for me , note , some times it takes me two tries and some times it takes me ten tries . BE PATIENT THIS WORKS . We just live with the problem .
Jan 13, 2020 at 8:16 PM (Merged)
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KATHY POST
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I had a new battery installed, which messed up my alarm system. The car is now able to start, but there is a grinding metal sound and an electrical burning smell. Local mechanics are not comfortable dealing with the electrical problems so here I am to ask anyone here.

Thanks in advance!
Jan 13, 2020 at 8:16 PM (Merged)
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JACOBANDNICKOLAS
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Hi:
It sounds like the starter is sticking and hitting the flywheel after starting.

Is the alarm system factor or aftermarket?
Jan 13, 2020 at 8:16 PM (Merged)
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KATHY POST
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The car alarm is factory installed, I believe, because the key chain alarm remote has the FORD logo on it. We purchased the car used in '97.
I had to move the car from the driveway, the engine started and I was able to reverse and then drive forward to park it. During this drive the car was smoking and smelling of electrical cords burning. I turned the engine off after and have not been able to get the engine started again.

My battery is now dead and I am unable to try and start at this time.

I would really like to keep this car.

Any suggestions?
Jan 13, 2020 at 8:16 PM (Merged)
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JACOBANDNICKOLAS
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Where was the smoke coming from?
Jan 13, 2020 at 8:16 PM (Merged)
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KATHY POST
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[quote:aac1cf11d6="Jacobandnickolas"]Where was the smoke coming from?[/quote:aac1cf11d6]

I saw smoke coming from the front end of the car. I had to move it quickly because of another car and so I was focused more on where I was going to park it rather then anything else. I noticed the burning smell shortly after starting it up and noticed the smoke after parking it.

My next step is to purchase a battery charger this weekend.

I wish I could offer more info.

Thanks for your any advice.
Jan 13, 2020 at 8:16 PM (Merged)
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JACOBANDNICKOLAS
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Hi:
Without knowing where it came from, it would be nothing more than a guess. Look carefully at as much of the wiring as you can. Look for anything that looks melted pay attention to. When you recharge the battery, pay attention if it starts to happen again. If it does, immediately disconnect the battery. keep a fire extinguisher near. I don't know what to expect.

Be careful and let me know what happens.

Joe
Jan 13, 2020 at 8:16 PM (Merged)
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KATHY POST
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[quote:13d28625cd="Jacobandnickolas"]Hi:
Without knowing where it came from, it would be nothing more than a guess. Look carefully at as much of the wiring as you can. Look for anything that looks melted pay attention to. When you recharge the battery, pay attention if it starts to happen again. If it does, immediately disconnect the battery. keep a fire extinguisher near. I don't know what to expect.

Be careful and let me know what happens.

Joe[/quote:13d28625cd]

Thanks Joe!
I will hopefully get the battery charger tomorrow, along with an extinguisher and see what happens. I'll let you know.
I really appreciate your help.

Thanks,
Kathy
Jan 13, 2020 at 8:16 PM (Merged)