Removed 6.6l lly blown motor and installed long block. Now Check engine light was on and no start. Hooked up my snap on scanner and have a glow plug module code. When I go to the BCM menu it says no communcation. I have tried 5 times doing the 3 x 10 minutes for the vtd and still no start. I have power to all the fuses. No other codes. Can't find wiring diagram or the bcm info for this. At my wits end with this one. Any help would be much appreciated.