Question about 2002 Kia Rio

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Altenator is not charging the battery

I have replaced altenator only to find out the old one was still good I cleaned all battry termanals as well as conections to the altenator I am getting 12 volts a battery and at altenator power wire but when I start the vehicle i can wath the voltage drop at both the altenator and battery all main fuses in fuse box are good I also took apart the dash and replaced the battery bulb just for good mesure still no charge any ideas would greatly apreciate any help I can get on the subject also cant find a wiring diagram for charging system please help!!!!!!!!!!!!!

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  • cuz399 Jan 05, 2009

    i only have two wires green white and not sure on color of other wire i have seen no fuses around the dash only under the hood buy the battery

  • cuz399 Jan 05, 2009

    buy the way i am sure i have the corect battery

  • Michael Fisher
    Michael Fisher May 11, 2010

    Are You Sure Its The Right Size Battery?

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  • Master
  • 379 Answers

Sir , the altenator has 3 wires at the connector correct ? a white/red , a green/white and a black , the white/red wire is involved with a 10 amp fuse to do with the charging meter / gauge , the fuse located behind left side of dash .. the green/white wire is is involved with 2 fuses , a 10 amp ECU fuse and a 25 amp Main fuse located at left rear of engine compartment main box , and the black wire is involved with a main 80 amp fuse at the main box also . both of these 2 wires end up at the positive side of the battery , please verify all these fuses are good . if they are indeed good , then open wiring would be next step verify continuity on black and the white/green wires . i would post a link to diagram but autozone repair info site is down at this time . if ya need more help , please ask .

Posted on Jan 05, 2009

  • Rick Byrd
    Rick Byrd Jan 05, 2009

    ok i can't get a picture for ya , but possibly its a 2 wire connector and a bolt on black wire , that one has a 80 amp fuse under the hood , in the main fuse box , have you verified that 80 amp fuse ?

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Was the battery light on for that one too?

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If you have a multimeter and are comfortable working under the hood with the engine running, you can check the altenator. Black wire to ground (any bare metal surface or the negative battery terminal) There is a single wire on the rear of the altenator. Red to this one.

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