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Battery light on?

Tiny
POLISHMAFIABOSS
  • MEMBER
  • 1999 DODGE CARAVAN
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 255,000 MILES
Battery light on a 1999 dodge caravan keeps coming on?
Friday, December 10th, 2010 AT 6:28 PM

54 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
The first thing you need to check is the battery and alternator and go from there. This guide will help us fix it

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Please run down this guide and report back.
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Friday, December 10th, 2010 AT 6:31 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Have the alternator load tested if okay-problem could be coming from the computer conrolled of the alternator's field generation circuit-
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Friday, December 10th, 2010 AT 6:32 PM
Tiny
POLISHMAFIABOSS
  • MEMBER
  • 27 POSTS
Had the alternator and battery tested while in the vehicle and they both tested fine. While it was being tested, the battery light never came on. When I left and went home, the bat light came back on, so I removed the alternator and had it tested by itself. It tested OK. Is the only thing that could be wrong is the computer? I didn't know Dodge used the ECM as the voltage regulator instead of one in the alternator. I'm about out of things to try. Thanks for the help.
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Monday, December 13th, 2010 AT 6:17 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Yes your computer controls the alternator when the battery light is on you need to take a multimeter and see what the voltage at the battery is. That way you can tell if it's a charging issue or a faulty battery light circuit.
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Monday, December 13th, 2010 AT 6:39 PM
Tiny
NICHOL4511
  • MEMBER
  • 3 POSTS
  • 1999 DODGE CARAVAN
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 11,000 MILES
Hi, my battery light comes on then goes back out after about 15 seconds. It can do this a few times in a week, or never do it. Sometimes, it happens several times a day. My husband has changed the cables. BUt this is still happening. The battery is new what is going on?
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Friday, August 21st, 2020 AT 9:32 AM (Merged)
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
The alternater may be on it's way out.
You can test it with a procedure here:
https://www.2carpros.com/how_to/index.htm
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Friday, August 21st, 2020 AT 9:32 AM (Merged)
Tiny
BASTINH
  • MEMBER
  • 8 POSTS
You could also take the vehicle to a auto parts store and have them check your alternator while in the car they could tell you if something is wrong.
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Friday, August 21st, 2020 AT 9:32 AM (Merged)
Tiny
NICHOL4511
  • MEMBER
  • 3 POSTS
Ok thank you I will do that!
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Friday, August 21st, 2020 AT 9:32 AM (Merged)
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Or you could take it to a professional and have it checked correctly.
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Friday, August 21st, 2020 AT 9:32 AM (Merged)
Tiny
DDINGEMAN
  • MEMBER
  • 1 POST
  • 1999 DODGE CARAVAN
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 195,000 MILES
When driving in heavy stop and go traffic the battery light comes on and stays on until the next day. This happens more when using lights, Radio and other electrical components.
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Friday, August 21st, 2020 AT 9:32 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,645 POSTS
Hi:
You need to have the Alternator tested. Go to an Auto Zone or some other nationally recognized parts store and have it load tested. Try to do it when the light is on.

Let me know what you find.

Joe
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Friday, August 21st, 2020 AT 9:32 AM (Merged)
Tiny
KELLY COLEMAN
  • MEMBER
  • 1 POST
  • 1999 DODGE CARAVAN
  • 6 CYL
  • 221,000 MILES
Battery light keeps coming on, even with a new battery. Had the alternator checked on the machine, it tested fine. Battery light still on, car feels like it is having to work hard to run. Also sometimes won't shift easily. Will pull off on side of road, restart car, then it seems to be fine. Will shift, no problem.
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Friday, August 21st, 2020 AT 9:33 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,645 POSTS
If the check engine light is on, have the computer scanned to identify if there are trouble codes stored. As far as the alt, if the battery is going dead or is weak as a result of the alt not properly charging, it can cause all sorts of problems. Since they checked the alt, have them check the fuseable link between the alt and battery to make sure it is good.
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Friday, August 21st, 2020 AT 9:33 AM (Merged)
Tiny
ROBERT HUDSON
  • MEMBER
  • 2 POSTS
  • 1999 DODGE CARAVAN
I own a 99 Dodge Grand Caravan Sport model with power everything, mileage 99500. Two months ago the battery light came on and the transmission jumped to low gear while driving at highway speed. I limped the vehicle to the shoulder and shut it down. When I tried to restart the van, the battery was dead. Took the van to a trusted transmission guy and he told me the problem was electrical, that when the alternator is shot it can cause this problem. Fine, I tested and replaced both the battery and alternator and everything was fine. Three days ago the battery light came on again. This time the car ran fine and when I shut it off and restarted it the battery light was off. Now the light comes on within a few minutes of driving. Any help would be graetly appreciated.
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Friday, August 21st, 2020 AT 9:33 AM (Merged)
Tiny
VANDRAGON
  • MECHANIC
  • 298 POSTS
You did not say how long ago this happened or if the altenator was new or a rebuild. How old is the battery and why did you take it to a trans shop? Does the van run ok with the light on, if so maybe the codes need to be cleared. You have a lot of miles on the van, could be a bad ground. Hell my 99 van only has 37000 on it and it's something new about every four months. Chrysler products are JUNK!
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Friday, August 21st, 2020 AT 9:33 AM (Merged)
Tiny
ROBERT HUDSON
  • MEMBER
  • 2 POSTS
The Battery and altenator are both new. I took it to the trans shop because the trans dropped to neutral at hwy speed. Once the van slowed down I had 1st gear and could pull it over. The battery and alt were tested and the battery was bad. After I put the new battry in, the same thing kept happeneing and I retested the alt ant it was bad. The old battery and alt were only three years old at the time. Now it has been 2-3 months since I replaced the battery and alt and the batt light is comimg on again like it did 2-3 months ago.
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Friday, August 21st, 2020 AT 9:33 AM (Merged)
Tiny
JMCNEIL25
  • MEMBER
  • 1 POST
  • 1999 DODGE CARAVAN
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 12,300 MILES
When driving and I put the air conditioner on after a while I while turn it off and then maybe 10 minutes later the battery light comes on then other electrical lights starts come off and on thats on the dashboard
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Friday, August 21st, 2020 AT 9:33 AM (Merged)
Tiny
CH112063
  • MECHANIC
  • 1,320 POSTS
Maybe the a/c threw the belt, that would take out the water pump(temp light) and alternator(check battery warning light). See if the belt is there. Ok 3.3L or 3.8L only.
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Friday, August 21st, 2020 AT 9:33 AM (Merged)
Tiny
DRAGONLADY
  • MEMBER
  • 1 POST
  • 1998 DODGE CARAVAN
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 86,000 MILES
I had a screw snap off from the a/c pump which made the belt come off. I know that I need to replace the screw and belt put back on. Why would the battery light come on when it hasn't been driven except to be moved out of the way? Would it do this cause the belt is not on at this time? Need an answer fast please, The van will be getting fixed on Thursday the 10th of June 2010.
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Friday, August 21st, 2020 AT 9:33 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Yes it will bcuz the alternator is not turning and not producing output.
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Friday, August 21st, 2020 AT 9:33 AM (Merged)

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