Hello, I am trying to track down why I do no have key on power to coil. I cannot find an accurate wireing diagram for my truck. best i can find says the pink wire comming from coil goes straight to the fuse block under hood to ecm 1 fuse I do not show an ecm 1 fuse but a pcm 1 pcm b and a etv/ecm all of which have power key on. I can jumper straight from 12v on battery to coil and truck starts and runs good. no codes. I need to know from the fuse block how does this travel. what other things in this path control how the coil gets it 12v key on power.
the diagram I have shows pink straight to coil. from fuse block. I suspect if this is the case there is a break in the connecter lead after the junction with the icm and ckp. I assume that since it starts and runs perfect when I jumper it that its a bad wire. do you have an accurate wiring diagram or can you confirm the pink wire path from coil to fuse block? any assistance would be greatly appreciated.