Answer to "What would you do?"I have kw 2013 t660 with an automatic Eaton ultrashift plus 10 speed I burn my ecu by trying to restart my truck by disconnecting the batteries (dummy) , ones I burned my ecu, truck wont even crack …now that I have replaced it with a used one there is connection with road ranger service , we’ll my mechanic stating there not connection from ecu and the cobra shifter now . so I went to get one but still truck not turning On. I get N and F on my dashboard and the trans red service light on . X Y shifter has been checked already and all fuses on the box too all working . Any help ?