Hi,
If you have power to the pump and it doesn't work, either you have a bad ground or a bad pump, but you indicated it works when you run power direct.
Have you checked the ground? If you look at pic 1, it shows the pump wiring and ground location. If you haven't already, check that. If you have checked it for continuity, recheck it when there is a load on the ground. Do the same with power. A poor connection can test good when not under a load.
Next, if you look below, I attached the diagnostics for the fuel pump control circuit. Let me know if you are comfortable following it.
Take care and let me know what you find.
Joe
See pics below.
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Friday, May 21st, 2021 AT 6:00 PM