Thanks for the question.
Repair history of truck?
What have you done or checked so far? Codes? Pid data? Fuses, etc?
How many miles on the truck?
I would still check the fuses. That is an easy part and would hate for that to be the problem.
On your scan tool, will it read PID data stream? FICM,ICP,RPM,etc?
So I take that as a no on reading pid data? Without that data, it is going to be very difficult on my end to tell you what is going on, but I can give you my best guess.
Is the original FICM back on the truck?
Here's the fuse info below
Check the fuses that have a yellow x next to them. It is best to remove the fuse and ohm check them.
That's ok. PID's mean being able to see voltages, pressures from all the sensors on the engine via the scan tool.
Ok Great! Below is a service bulletin that we use to diag a HP oil leak in the engine. If the fuses are good and all the connections are good, the grounds are good, follow the steps in this bulletin. Most cases if you don't have enough oil pressure to start it is the manifold fitting described in the bulletin that comes off the HP pump. This is an excellent diag steps. It will take a while. 2005 was a very bad year for that manifold piece leaking HP oil. Of course it has to be in the worse area. It couldn't be out in the open!
This article supersedes TSBs 08-9-9 and 05-12-3 to update the Service Procedure and Service Labor Times.
Some 2005-2007 F-Super Duty, 2005-2008 E-Series and 2005 Excursion vehicles equipped with a 6.0L diesel engine may exhibit a hard start / long crank or no start condition due to low injection control pressure (ICP).
Follow the Service Procedure steps to correct the condition.
If oil is leaking from the ICP system or if air is trapped in the ICP system, the injection pressure regulator (IPR) valve may be commanded fully closed by the Powertrain control module (PCM) while the starter is engaged in an attempt to exceed 500 psi (3.5 MPa).
Figure 12 - Article 08-18-6
The images are pictures of graph data that is related to the Ford IDS scan tool and not your scanner.
That reading is good. Continue on with the bulletin.
Earlier you said it was .27v, now it says .10v?
Ok, then replace the ICP sensor, and retest.
Sticking out of the passengers side valve cover front.