I've replaced the pmd and remoted it but still dies and hard hard restart. I have videos.

Right after it dies the return line looks like this. https://youtu.be/YIPwck-_qJ8

This is trying to restart it. https://youtu.be/V1Yr9e1jaZo

These are the trouble codes. Note: it doesn't give the '1-2'x3 before giving the codes. https://youtu.be/W3PKNDCuDCQ

Any and all help is appreciated, chemo fried my brain and I just can't figure this out and googling has been fruitles.

 

Clean all ground wires, add a new fresh ground to the block, and to the big pump.