It sounds like the the alternator wiring is causing the problem. I would start by checking the fuses # 9 and 28.
Here is a guide to help you test the fuse:
Here is the alternator wiring diagram below so you can see how the system works and where to test for power.
Check out the diagrams (below)
Please let us know what you find. We are interested to see what it is.
Images (Click to enlarge)
Tuesday, August 13th, 2019 AT 6:57 PM