I "believe" I know where my fault light is coming from but I do not know how to properly diagnose it. With the (+) pos terminal disconnected from the battery and all the aux/acc wires disconnected from the (+)pos bat cable lug I am getting current from the large black wire that I'm pretty sure goes to the alternator. I disconnected what I think is the same wire at the alternator. See pics below

 

Same wire (?) at the alternator side.

 

If I hook a teast lead to the wire to the alternator bypassing the long wire that goes back to the battery I get no current. This leads me to believe there is a short or?? in the wire or some part connected to that wire the goes between the battery and the alternator. What do I check next?

 

Your "what's this" in the picture are the grid heater connections if I'm not mistaken here. I still don't understand what the problem is. Is there a post somewhere else describing your problem. I'll look and see.

 

Jbolt:<br>I am not sure what the problem is either. However, from what I understand from your posting, when you jumper the wire from battery to alternator, there should be no current. if there were a voltage reading, you would have an open circuit.(potential defference)<br><br>I may have misread your post.<br>george

 

Thanks everyone. It was a problem in the alternator.