Hi, Weezy.
Noticed it has been a few days since we made contact with you. Has any progress been made? We're interested in knowing.
Also, if you haven't made progress, I need you to first confirm if the SP sensor fuse in the under-dash fuse box is good. In addition to checking the fuse, confirm there is power both to it and from it. Here is a link you may find helpful:
https://www.2carpros.com/articles/how-to-check-a-car-fuse
Now, I attached the wiring schematic below related to the charging system. Note that I had to cut the one picture into two, so it was readable for you. I did overlap them so you can follow from one to the next.
Next, there should be a white wire on the alternator which has battery voltage at all times. Please confirm that for me as well.
If it is good, we simply need to confirm the alternator is producing. Here is a link that explains how to test it. If you have already done this, let me know the results:
https://www.2carpros.com/articles/how-to-check-a-car-alternator
Let me know the results. Also, for some reason, my manual isn't providing the fuse layout for the vehicle. However, the SP sensor fuse is in the under-dash fuse/relay box. It will be fuse number 15, a 7.5-amp fuse. Note: If the SP fuse is bad, it will prevent the light from turning on.
One last thought. If I recall correctly, there were issues with the wiring to the alternator near or under the intake that were known to dry out and have the insulation fall of causing shorts. Inspect that as well. Make sure nothing has rubbed through.
Let me know what you find or if you have other questions.
Take care,
Joe
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Sunday, October 10th, 2021 AT 8:37 PM