Engine is a no crank over?

So do you have power to the purple wire at the starter with the key in the start position?

The output wire out of the starter relay is purple that is the trigger wire to the starter. Is there battery voltage at the starter with the key in the start position?That would tell us if the starter relay was working and giving power to the starter.

Alright while the key is in the start position do you have a ground going to the yellow and black wire at the crank relay?

With intermittent issues, you have to test when problem is ongoing. Engine cranking, gray wire at pump connector should be hot. Black wire is ground for pump motor, check that also. Note diagram below.

The neutral safety switch supplys power to the crank relay trigger from the orange and black wire. Then the yellow and black wire to the crank relay has to supply the ground to the trigger of the relay for the relay to work. The yellow and black wire is the actual ground trigger from the pcm. The purple wire out of the pcm/crank fuse should have power with the key in the crank position that goes to the pcm.

What about the other wires I mentioned in my last reponse?

Is the yellow and black wire sending a ground from pcm to the crank relay will cranking?

See if its shorted to power somewhere?Is it only power while cranking?

Sounds like the problem is the wire thats supposed to feed the starter relay with a ground from the pcm is giving power instead.I posted a circuit description plus a trouble tree. Foloow the trouble tree and let me know what you find.

I would say a tech2 scan tool or more advanced scan tools that do body air bags tire monitor etc. So is the security light on when trying to start it?