Can kind of - I know there's a method to the schematics - have to lookup a quick tutorial. More interested in any lines that had to be added/customized (as you referred to in the other thread). The J1939 is terminated properly, but have to check the j1587, as seems quite key to the dash/tcm/ecu talking.
And time is my enemy - truck is a drive away, and weekends are my only time slot, so this will be slow going...
Thx!
It looked like in your pictures they already swapped in the entire chassis harness including the C7 style PDP, etc....
Making the engine run is easy - the ECM only needs two battery 28v+, and two grounds and a 28v+ ignition switched. 5 pins on the chassis side connector and a way to crank the engine and it will run. You will need the throttle control to actually drive it though.
The biggest issue looked like the trans was the MD3070 and the wiring and WTEC IV are for the 3700SP. They are very similar though so I would *try* to get the WTEC-IV to operate the transmission. It could be that you have to change back to a WTEC-III though.
But yes - as Ronmar suggests - it's a matter of sitting down with the truck and the schematics and finding out what needs to be added, changed, or repaired. This can be a really slow process. I spent about 8 hours last weekend getting a fellow member's truck running after it stalled on the freeway due to an electrical problem. Corrosion in some power/ground circuits to the ECM turned out to be the culprit but in the process of troubleshooting we went down a couple paths after identifying real problems that had to be fixed to rule them out as the cause or to be able to more easily troubleshoot. Burnt out bus resistors, fault codes on other modules, a ground pin pushed out of the chassis ECM connector, corrosion in the CTIS sub harness..... there's rabbit holes that can take days to find the bottom of and that's even with people experienced in the FMTV ecosystem, US Army motorpool experience, etc.