I have a 2002 dodge ram 1500 3.7L V6. Code P0354, 0304. Seems to be a problem in the wiring. Where can I get a PCM pin out wiring diagram for it so I can test continuity?

What makes you think the problem is with the wiring rather than the coil?? You should be able to hook a light into the where the wires plug into the coil and crank the engine over and see if the light flashes.. If it flashes the wiring is good and the coil is bad if it dont flash then I would check the coil harness..

I can move the coil to any other position and it works but not on #4 cyl. I have checked continuity between PCM and that coil. the driver wire is good but I don't know where the other wire in coil harness goes.

Hope this helps, power is always at the coil and PCM sends out the ground. With truck running you should have 12v at coil DG/OR wire, then the put test light clip on the pos battery terminal and you should get a dim flash on the TN/LG wire if the PCM is send a ground out to the coil.