Hi,
For the alternator to charge, it has to have battery voltage. There is a red wire on the alternator that should have 12v at all times. Locate that wire and check for power.
If there is no power, then there is likely a blown fusible link. A fusible link looks like a wire but functions as a fuse. If too much power is drawn through it, if will blow stopping power.
I attached two pics below. They are of the charging system. Note the red wire I highlighted comes straight from the starter motor. It runs through two fusible links (circled), through a current sensor, and then to the alternator. I suspect that is the issue, but we need to check for power at the red wire on the alternator first.
Here is a link that you may find helpful:
https://www.2carpros.com/articles/how-to-check-wiring
Let me know what you find or if you have other questions.
Take care,
Joe
See pics below. Note: I had to cut the schematic in half to make it readable for you. I did overlap them so you can follow from one to the next.
Images (Click to make bigger)
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Monday, September 6th, 2021 AT 9:18 PM