Ok! I changed alternator. Sys is charging battery is @ correct amps... why would idiot light stay on. ???

Idiot light shows a pictures of alternator.
Ok! I changed alternator. Sys is charging battery is @ correct amps... why would idiot light stay on. ???
Not alot of info to go on, but I'm gonna use the SWAG method on this. (Scientific Wild A$$ Guess.) You have a newer car. You did all the work yourself. You didn't use a manual since an alternator is a simple swap. Here goes!



You didn't have the tool to reset the trouble code in the computer.



Alternator knows it's OK. Battery knows it's OK. Puny little computer mind in your car still is having fits. No one told %26quot;IT%26quot; that all is OK now. Most times it's just something you plug into the harness under the dash or in the engine compartment. Resets the computers little brain so it don't worry anymore. Hope that does it for ya'. Ciao!
Ok! I changed alternator. Sys is charging battery is @ correct amps... why would idiot light stay on. ???
What was the batteries voltage when you changed out the alternator? If it was very low, it'd do that idiot light for a bit too. If not, then most likely is a bad wire in the plug in connector. Have someone wiggle them wires till the light goes out. Then note that wire, and fix it. Good luck.
i own a repair shop,and it would have helped if you had given more info on the car,usually if the idiot light is on it means there is still a charging problem with it so if it keeps doing it,you might have to have it checked out real good to see what the problem is ,,good luck i hope this help,s.,,check all the cables real good on it.