Did anything happen?

I'll do a IF

If you jumped from the nut with the red wire which is on top the fuse to the small post and it did nothing (meaning no click), then.

If the nut had 12V
If the other small post with the black wire on it has a good ground, then

The relay is bad

Nothing happened, no click. The red wire had power too. How would I check the ground for that small post? I tested it with a light tester and it doesn’t have a good ground from the tester not lighting up.

Need a voltmeter on the ohm scale. Place one probe on the frame of the pump (ground lug) and the other on the small terminal. Should read zero ohms.

My guess is the relay is bad
89-96054T

I checked that right side post with several different grounds and all got zero. The left side terminal post gave me an ohms reading. So I’m gonna need a new relay?

That would be my assumption. The ground is good so if 12V is applied to the other terminal the relay should energize, and its not

I’m gonna find the part and replace it. Did you mean to say that the ground (right post) is bad on the relay? It’s been iffy the past year anyways and it’s probably original and could use a new one.

I think those two are switched around because power is coming off the “Ground” and the “12v” labeled post has zero ohms and is not grounding. I used a bulb tester on the post labeled “Ground” to another ground and it lit up. So it seems that the post on the right is no good and isn’t grounding.

That doesn't sound right but ok
The wire that energizes the relay should be white/green stripe, and when jumping from the red wire to the post on the right this would have caused a good spark

You need a volt meter not a test light