Hi,
Okay, if I am reading the schematics correctly, the coils have power at all times, but the ground is provided by the PCM. That is what would actuate the coil to fire. Take a look a pic 1 below.
I highlighted everything with the coils. Note there is a red/lt green wire that I circled. That is coming from the central junction box and should have power and should have power when the key is in the start or run position. Check for power and let me know if it's there.
The remaining pics include the entire powertrain management wiring schematics. I had to cut them in half to make them readable, but I did overlap them so you can follow from one to the next. I wanted you to have them as a reference. Additionally, I highlighted all the wiring to the PCM from each coil. All highlighted wires are tied into the coils and power to them. Since power is coming from the red/lt green wire, the PCM must be providing a ground path. That is why I'm suggesting checking that wire for power. If it isn't there, we need to see where it's lost. If it is there, we need to move to the PCM.
I remember in one post you indicated there is power to the coils. I want to confirm that is the wire you checked.
Let me know.
Joe
See pics below.
Images (Click to make bigger)
Saturday, May 29th, 2021 AT 10:24 PM