So, I've troubleshot everything that is in the shop manual... no luck.

I've replaced the relay, the ECM, and have tested the solenoid. Still will not open a WOT.

I checked for continuity from the orange wire that goes in to the relay to the #7 pin connector that goes into the ECM. It has continuity (hence it should transmit electric signal to the relay.

I can pop the cover off the relay and manually move the contact and the louvre will open and close. I suppose that means the wiring to the solenoid and the solenoid itself is good.

Any ideas?