Originally Posted by GLP

The red battery light on the dash stays on while driving. Engine starts and runs fine. No other electrical issues. I know this means charging system malfunction so here is what I have done so far:

-replaced battery (it tested a little low but was starting engine ok).
- tested alternator - charging normal.
- Checked battery cables and chassis grounds, all good.
- checked condition of wiring coming from alternator, sleeve still in tact with no tears all the way to the engine bay fuse box.
- checked fuses and relays of charging system circuits, all good.
- checked for obd codes, none.

I’m out of ideas. Does anyone have any suggestions?

It’s a 2004 V8 4wd limited