Hi,
Based on what you lost, it sounds like fusible link B has failed. A fusible link looks like a wire but is designed to function as a fuse. If too much current flows through it, it will fail and prevent power flow.
In this vehicle, fusible link B is located under the hood on the left side (driver's side) near the battery. See pic 1. It should be a rust color and connect into a red wire.
If there is no evidence of it being bad, check for continuity from one end to the other. Here is a link you may find helpful:
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, March 13th, 2022 AT 6:45 PM