Hi,
Because of the model year, the schematics are a little basic. What I was able to find that I thought would help is the schematic for the starting/charging system. I attached the pic below.
When installing this, take your time. Make sure that all wiring you connect to is properly reconnected and insulated to prevent shorts.
Also, here is a link you may find helpful. It explains how to test wiring.
https://www.2carpros.com/articles/how-to-check-wiring
Let me know if this helps or if you have other questions.
Take care,
Joe
See pic below.
Image (Click to make bigger)
Sunday, December 5th, 2021 AT 7:41 PM