Different Charging System Problem

[joejv4]

I'm getting the Check Charging System alert & alarm when accelerating - when the RPM's get a little over 3000.

Alternator, belt, something else? is this something i could track down using drive mode on my scanner?

Any help is appreciated!

*EDIT: When I run the System Check at anything under 3000 RPM, it shows "Charging System OK"

 

[mbagley]

Worn out alternator brushes will do this. They "float" at high RPM. The ALT spins at higher RPM than the engine.

 

[joejv4]

Worn out alternator brushes will do this. They "float" at high RPM. The ALT spins at higher RPM than the engine.

Thanks for the quick reply. I had a feeling that might be what it is. I'll put a new one in and go from there. Thanks again