Question about 2002 Kia Rio

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New Battery and Alternator All Fuses are Good 12.5 Volts on Black Wire,12.5 Volts Green Wire 2.05 Volts on White With key on Still no Charge to Battery

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  • Robert Ferguson Dec 12, 2012

    Defect in alternator

  • Bob Hatt Dec 12, 2012

    I have one comming in the morning

  • Robert Ferguson Dec 12, 2012

    Good Luck

  • Bob Hatt Dec 12, 2012

    Took the battery loose to change the alternator and thought I would check it one more the and put the cable back onand it was charging 14.26 volts and has charged ever sence

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Check the voltage regulator. see if it`s putting out .

Posted on Dec 12, 2012

Testimonial: "it got me to recheck it one more time"

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  • Bob Hatt Dec 12, 2012

    If I unplug the Black Dash Plug the alternator will charge 14.36 Volts Plug it in Stops Charging

  • Bob Hatt Dec 12, 2012

    the dash Battery bulb is good but will not light with the key on to test bulb

  • Bob Hatt Dec 12, 2012

    both diodes and resisters check good on printed circuit of dash

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Check thewire at the starter. the wire from alternator pasts to the starter then to the battery

Posted on Dec 12, 2012

Testimonial: "Rechecked the connections and it started charging"

  • Bob Hatt Dec 12, 2012

    I have 12.5 volts on the black wire from starter

  • Bob Hatt Dec 12, 2012

    the book calls for 1 volt on white wire I have 2.05 Volts I am not shure why

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2 Answers

Put a new alternator and battery on the truck but still does not charge


Hi George,
I need year--make--model--engine size.
Usually the alternator needs excite voltage or no charge. The alternator bat terminal should be hot all the time, even with key off, if it isn't, something wrong with that wire circuit.

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1989 dodge 250 the red ignition wire is getting hot and melting in two when the key is turned to the run position


Blue wire to ignition switch,from alternator voltage regulator.( 12 volts ) ECU power wire, Red wire to battery terminal. Blue wire goes from alternator to the ignition switch. The voltage regulator senses the incoming voltage from the blue wire. ) it grounds the green field wire This energizes the alternator field, and the alternator begins to produce a charge and sends it to the battery via the main output wire. When the voltage regulator senses 14 volts from the blue field wire, it cuts the ground to the green field wire. Good-Day!

Sep 21, 2014 | Cars & Trucks

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Have a 1999 ford explorer charging system is not working was told battery was good as was the alternator but voltage meter only reads 12 volts at battery and alternator when running and after I drive it...


Is the charge indicator lit ? Is there B+ voltage at the white with black trace wire pin A in the connector . B+ voltage at lite green with red trace pin I in the three wire connector ?
2003 Ford Explorer How To Check And Replace The Alternator

Aug 16, 2017 | 1999 Ford Explorer

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My 1983 CJ8 has a new battery and a new alternator but still only sends out 12 volts on the voltage meter. The battery does not charge, what's wrong?


Does the battery light work in the dash? Do you have 12 volts to the stator (often marked "S") wire at the alternator when the key is turned on? If no light system will not charge.

Oct 01, 2012 | 1983 Jeep CJ7

1 Answer

Alternator wont charge


at alternator gig wire battery voltage,one wire battery volts one less . battery volts wire goes to automatic shut down relay, less then battery voltage wire to pcm fuse will be 20 amp just ck all that size.

Aug 05, 2012 | 2001 GMC Sierra 2500HD

2 Answers

Put new alternator on the car and it still well not start it has to be jumped off it acts like it is not chargeing is there something i am missing


The alternator needs power from the ignition switch for the stator coil. The ground for the stator comes from the power module. Then, the charge wire from the alternator to the battery has a fusible link that you should check. Use an ohmmeter to check the continuity of the fusible link and, with the key on, back-probe the dark green wires to the alternator to see if one of them is getting 12 volts from the ignition switch. The other dark green wire should have continuity to engine ground. If all of these things are true and the alternator is good, you should get at least 14 volts out of the alternator to the battery with the engine running. Let me know if you have any questions.

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Dec 09, 2010 | 1985 Plymouth Reliant

2 Answers

Will not charge. replaced alternator, and voltage regulator. fusible link is good. battery tests good


good the alternator you installed be bad? if it tests good then theres a fuse or a wire thats bad, check links at starter and battery and alternator if it has them there,start there, i would first have that alternator tested.good luck. also check wiring to regulator had problems with that!!!!

Nov 14, 2009 | Lincoln Mark VII Cars & Trucks

1 Answer

Altenator is not charging the battery


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 .

Jan 05, 2009 | 2002 Kia Rio

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