2007~2015 CX9 Battery light on after new Alternator

[TheDude88]

Hello. I recently replaced my alternator on my 2014 CX9 and the battery light comes back on a few minutes after starting. Also installed new belt and battery. It sometimes will go off but always comes back. I checked the blade fuses and all ok. ???? Voltage at battery while running is 14.7v. Initially I got P0882 TCM power output low but cleared it and now no new codes but light still on

 

[N7turbo]

Have you checked the output with a multimeter?

 

[TheDude88]

Have you checked the output with a multimeter?

14.7 while running

 

[TheDude88]

Initially I got P0882 TCM power output low but cleared it and now no new codes but light still on