Anyone fimilar with 9400i 870cm

[608trucker]

Thank you all I've test all the batteries an the come back testing fine. I'll have to recheck an see how many wires are coming off the alternator when I get back to the truck. It throws a constant warn engine light an that's the only code that pops up as soon as I have some one clear it comes right back on and the stealerships play guessing games while scratching their heads at 1k a pop it seems like an I'm really. Not trying to play that game. I wont be back to the truck for a few weeks I ended up parking it an jumping in another one of my trucks for time being. Wasnt trying to go down on the road cause we all know how expensive that is