I have a 2009 pioniac g8 3.6L V6. I just replaced the alternator cause it went bad. After I finished the job the turned on the car to check if the problem was fix. It was still saying the alternator was bad. I checked the voltage with a meter and it was reading like it should. Few minutes went by and the warning went away. A week later which is today, the warning came back on. I did the same diagnostics and it shows the right voltage of 14. some with lights on and AC at full blast. What can I do to make the warning go away or is there some I missed?
You could've also got a bad replacement alternator...it's been known to happen from time to time. Bring it in and have the alternator load tested.
That's what I thought as well but it's giving the voltage that's suppose to. I had the ac full blast and the head lights on.
Did you do a computer reset to erase the code?
No, how would I go about doing that?
Disconnect the battery for 20 or 30 minutes.
I did do that. I did it the day I replaced the alternator. Then a week later which is today, it came back on.
Then you still have an electrical or computer problem.