2014 4Runner Alternator Fail and Charge Light

[Big T]

Alternator went out on the 2014 4Runner, stranding my wife in Mackay, Idaho (population ~500). Original alternator went 318.5K miles. I replaced with new Toyota Denso alternator and that lasted to 395.7K miles, or about 78K miles. Replacement alternator (do not know if it was new or reman, but it was $332) arrived late Monday and the local mechanic it in and sent her on her way. She made it to our Montana home late Monday night, with no further issues. However the battery charging system light remains feintly lit as shown in the following before and after pictures:



What could be causing this?

 

[Twisted Steel Performance]

Do you have a way to check the voltage output? Maybe a bad ground now?

 

[Big T]

Do you have a way to check the voltage output? Maybe a bad ground now?

Wife has the car at our Montana home; I am at our Fullerton, CA home. I can try to coach her through using rhe multi meter, but I know she’ll just take it to our local mechanic.

 

[Twisted Steel Performance]

Could be weak ground, connection, etc... you know lol

 

[Will L.]

Also the battery could be failing and that would have caused the alternator to overwork & burn out

 

[Big T]

Also the battery could be failing and that would have caused the alternator to overwork & burn out

Just replaced the battery in September, but it was on the alternator that failed. Battery never failed to start the car.

 

[jrsavoie]

I use these cigarette lighter volt meters

Amazon.com