Battery light stays on 99Q

[SouNdoFsiX]

in my 99Q after an extended period of driving the battery and brake light will stay on. I just replaced my alternator and had to resoder a new plug from the harness to the alternator since the old one was burnt to a crisp and shattered when I was removing it. I had autozone check the battery starter and charging system, everything was good. So then y is the battery light and brake light coming on outta no where?? Please let me know

[xerexabante]

Where did you get the alternator? Why did you replace the alternantor? Check your battery cables and ground. I looks like hte sending unit from the new alternator for the idiot light is bad. You might need to replace with a better brand rebuilt or a new alternator.

The issue is why did the pigtail get burnt, then you had a short, or over load.

[maxnix]

Battery and alternator must meet OEM specifications.

3rd party alternators often do not and are only partial rebuilds.

[SouNdoFsiX]

bought the alternator from autozone. They said it's a refurb from the dealer. Reason y I had to replace the pig tail was cuz the other one caught on fire. There's a whole thread on it here somewhere. It was only a month ago all this happened and I finally found the plug to fix it last week.

[maxnix]

bought the alternator from autozone.

They lied unless "from the dealer" means it originally was manufactured by Nissan. 12 month/12K miles warranty, I hope.

[SouNdoFsiX]

so to fix this problem I need to...

[maxnix]

Take it to an automotive electrical specialty shop and have them load test it. A scope will show any abnormalities like if the diodes were not replaced.

[BadQ45t]

The first thing I'd do is go to autozone and tell the you want your money back on that alternator, you were lied to, they do NOT have a Nissan alternator, the only dealer it came from was theirs. In my experience anything other than factory suck, I had several different ones put in by incompentent shops and all failed and left me stranded again.

I would start with a fresh factory refurb alternator and than trouble-shoot from there, get your money back from them while you can, the out-right lied to you, more than likey it is cheapo Mexico alternator that will fail in 12-14 months...I had two of them that did, boht replaced by the wife after breakdowns when I was out of the country.

[SouNdoFsiX]

THIS JUST IN!!!!car just shat out yesterday on my wife when she was driving home... FAILED. 8-12 months for a pos alternator, was more like 5 days. wtf did i do wrong... At least i thought it was from the dealer... the case says nissan and everything and match my old one exactly... but apparently there's more to it then meets the eye..

[qship96]

Your car SHAT on your wife? Hope she carries toilet paper in her purse to wipe herself off.

[SouNdoFsiX]

good one guy.