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My battery light is on in my 2003 navigator message center says check charging system I had my charging system check at autozone an all test came back good. the light is still on so what could be the problem

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1 Answer

Don't know what auto zone did, but obviously
didn't diagnose or resolve the issue

Start over at a shop that you hopefully have used
with sucess for years

You need wirng diagrams to see what the system
looks like, to start on that issue

Posted on Jan 06, 2013

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 979 Answers

SOURCE: check charging system

Do you have gauges on this car also?
If so, you may have a problem with what is called a "current shunt" resistor. This will prevent the car from recharging the battery....accordianman

Posted on Jul 22, 2008

csmock132
  • 4669 Answers

SOURCE: Battery dosn't charge, alternator/voltage adapter test's good.

Did you test the Alternator on or off the truck? It might be a problem with the control system to the Alternator. The regulator need a battery feed to work, It is usually ran through an alternator fuse.

Posted on Mar 11, 2009

  • 6 Answers

SOURCE: i have a 06 pt cruiser the battery light came on

there is a tsb on that in the dealerships i belive there is a flsh for the computer to fix this problem i have been a mechanic at a chrysler dealership for 9 years now and that is a pretty common problem

Posted on Apr 01, 2009

  • 80 Answers

SOURCE: 2002 Ford Ranger check engine light indicating misfire

Code P0301
Ignition Coil Pack
Ignition Cable
Spark plug
Clog or dirty fuel injector
Evap canister purge valve
Engine Compression
fuel pressure

you have 3 type of engine for your truck
2.3L 4 cylinder
3.0L 6 Cylinder
4.0L 6 Cylinder

need to know that type Engine

The reason why the service light come on because it is a hard code
not a soft code.

Let me know

Posted on Sep 20, 2009

  • 580 Answers

SOURCE: 2003 Ford Focus battery light is on, but alternator appears good

Disconnect battery ground for 30 seconds & reconnect. Light should be out unless you have deeper diagnostic problem. Charging system good Battery good. This action should reset trouble light. Good luck!

Posted on Dec 29, 2009

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The charging system on your vehicle is Computer controlled . called ( smart charging system )
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you actually trust the supposedly knowledgeable "part guys" at your local autozone regarding automotive repair. hmm. well my answer to you is take it to someone or a shop and have them load test your alternator and see if its putting out the sufficient amperage and voltage. make sure you get a good battery, and not of those cheap ones from autozone. i recommend interstate batteries or optima batteries.

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My alternator went bad and so i had it replaced. then the battery light came on again. I replaced the battery brand new and the light is still flickering. Whats the problem now?


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