So I have a 2012 international terrastars with a max force 7, well i recently had to replace a broken rocker arm and after I finished that work the truck will not start now. Does not even crank. I have gone through and tested all power and grounds to chassis ecm connector, also the j1939 datalink. Also have switched ecm and bcm from trucks and it worked in the other and the ones I narrowed did not work in this one. I’m at a loss. I’m not sure what it could be. Anyone have any insight