99 dodge half ton 4x4 automatic. Just replaced transmission. Truck won't start. Drove truck into garage to change transmission and now crank no start. Checked several grounds all appear good. Fuel pump only activates when I jumper it at the relay. Coil is not receiving 12v on bottom side at hot wire. Which means no spark. All this points to pcm not triggering asd relay. Suggestions? I've changed relays and no change.

 

Pinch any wires between the engine and trans? Crunch the crank position sensor installing/removing the trans?

Welcome to DF!

 

Don't think so.... replaced the crank sensor just to be sure lol.... I wound up putting a pcm from a 98 in it.... fired right up.... but that pcm is for a 5.9 ..... runs rough and shifts weird..... looking for the right pcm now.... thanks for the reply though