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Alarm system

Tiny
WRECKED77
  • MEMBER
  • 1999 DODGE CARAVAN
Hi after about a year of my moms van sitting in her garage. She decided to sell her van. So obviously the battery was dead. I replace it with a brand new battery. Now when I open the door, the dash lights, and parking lights start flashing like the factory alarm is going off.

so I start the car, drive around the block and still the alarm keeps going off. What would cause this. Do I have to "reset" something because I put a new battery in?

thanks for any help!

chris
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Tuesday, March 9th, 2010 AT 3:10 PM

27 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
Unlock one of the front doors with the key.

Caradiodoc
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Wednesday, March 10th, 2010 AT 10:59 AM
Tiny
WRECKED77
  • MEMBER
  • 4 POSTS
I tried that. I know the keypad has a dead battery. Im gonna try and get a new battery for that and lock and unlock the doors with that and see if that works.

Thanks for the reply
chris
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Wednesday, March 10th, 2010 AT 11:11 AM
Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
The remote should work too. If it does, and the doors don't, look for broken wires between the door hinges, or the switches are broken or disconnected.

Caradiodoc
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Wednesday, March 10th, 2010 AT 11:51 AM
Tiny
WRECKED77
  • MEMBER
  • 4 POSTS
Ok I tried everytihng I could think of. Still the alarm keeps goin off while I drive the van? Any ideas?
Thanks
chris
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Thursday, April 1st, 2010 AT 12:04 PM
Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
Actually, if you're driving the van, it isn't in theft mode. The only thing the dash lights and running lights have in common is the Body Computer. That computer adds a lot of complexity and unreliiability to otherwise simple circuits. Unfortunately there is no easy way to test it other than to replace it. It sits up high against the firewall, inside the passenger compartment, ahead of the brake pedal. It unplugs when you pull it down, that's why troubleshooting is next to impossible.

Caradiodoc
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Thursday, April 1st, 2010 AT 1:07 PM
Tiny
WRECKED77
  • MEMBER
  • 4 POSTS
Idk if this helps but when I turn the headlights on the lights stop flashin. Thanks
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Thursday, April 1st, 2010 AT 1:18 PM
Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
The dealership mechanics, and some independent shops with hand-held computers that can access the Body Computer can use it to activate various functions and to read the state of the sensors and switches feeding the computer That will give some clues as to whether the computer is acting up or if it is responding to something.

Caradiodoc
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Thursday, April 1st, 2010 AT 1:27 PM
Tiny
BERIGUY
  • MEMBER
  • 2 POSTS
  • 1996 DODGE CARAVAN
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 150,000 MILES
How can I disconnect the anti-theft device on my car?It has failed somehow and won't let me start the engine. Thank you.
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Saturday, December 8th, 2018 AT 1:50 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
You cannot bypass the alarm on this car. Let try to reset the system by following this guide.

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

Please run down this guide and report back
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Saturday, December 8th, 2018 AT 1:50 PM (Merged)
Tiny
BERIGUY
  • MEMBER
  • 2 POSTS
Thanks for the guide followed the hard reboot instruction and bam! All fixed thanks:)
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Saturday, December 8th, 2018 AT 1:50 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Good to hear, please use 2CarPros anytime we are here to help.
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Saturday, December 8th, 2018 AT 1:50 PM (Merged)
Tiny
DIANNE TEXEIRA
  • MEMBER
  • 1 POST
  • 1996 DODGE CARAVAN
Electrical problem
1996 Dodge Caravan 6 cyl Two Wheel Drive Automatic

My factory alarm went off when I went to open door and wouldn`t shut off, after I was able to get it to shut off it wont turn over, all the lights work, the radio works, but thats all I get. What can be the problem?
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Saturday, December 8th, 2018 AT 1:50 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Disconnect the BCM
wait a few and then reconnect BCM and try
check battery if low and check fuses 1st
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Saturday, December 8th, 2018 AT 1:50 PM (Merged)
Tiny
WALTERC
  • MEMBER
  • 2 POSTS
  • 1998 DODGE CARAVAN
Electrical problem
1998 Dodge Caravan V6 Front Wheel Drive Automatic 150000 miles

I have a 1998 dodge grand caravan and the battery ran down and when I attempted to jump start it the intrusion alarm went off and the car would not start. I put another battery I that was already charged and when I connected the new battery the alarm went off and the car would not start.
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Saturday, December 8th, 2018 AT 1:50 PM (Merged)
Tiny
EDI3000
  • MEMBER
  • 34 POSTS
Alarm and no start. Try unlocking the tailgate with the key, if that doesn't work, try same with passengers door.
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Saturday, December 8th, 2018 AT 1:50 PM (Merged)
Tiny
DAVE1955
  • MEMBER
  • 2 POSTS
  • 1997 DODGE CARAVAN
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 12,000 MILES
My factory alarm system keeps shutting down and takes along time to reset not letting my van to start
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Saturday, December 8th, 2018 AT 1:50 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
I hate to say it, but a dealer is the only place that will have the proper test equipment to check it.
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Saturday, December 8th, 2018 AT 1:50 PM (Merged)
Tiny
CYNLOY
  • MEMBER
  • 2 POSTS
  • 1998 DODGE CARAVAN
  • 6 CYL
  • FWD
  • AUTOMATIC
I just need to know how to disengage the alarm on my 1998 Dodge Caravan?
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Saturday, December 8th, 2018 AT 1:50 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
If it is a factory alarm, you need to have a dealer do the work.
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Saturday, December 8th, 2018 AT 1:50 PM (Merged)
Tiny
BEARMAN76
  • MEMBER
  • 2 POSTS
  • 1998 DODGE CARAVAN
  • 16,500 MILES
I have a 1998 Dodge Caravan. Recently bought it off a guy who cut the factory alarm to shut it off. Now, the van back hazard lights always blink unless the headlights are on. And, after about 2-3 miles the van completely shuts down and has to be jump started. Help!
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Saturday, December 8th, 2018 AT 1:50 PM (Merged)

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