Seems like the pcm conrtol relay is bad

All fuses checked out early in all this. No codes stored. No freeze frame data. Relay is good swapped it out with another just for fun. I'll check crank sensor, but what about the question I asked? Is there a way to check the PCM relay module? The one that is mounted on the cruise control cable/gear assy. It's under the air intakenear the power distribution box. Also.I've removed the bottom of the underhood fuse box looking for loose connections. Nothing.

Also, I cleaned the ground strap and ground wire at the shock tower by the PCM( not the ones at the battery. They are all clean ). It wasn't real dirty but was worth cleaning.A few times over the past few months, the temp guage was not reading. As if the sensor had lost a wire, but on next start/up and 99% of the time works correctly.
Dave

Thanks, As I mentioned (first question) the cam sensor pulses when cranking 10-12v connection seems good. No anti theft on vehicle, raining now here in Fayetteville. Crank sensor will have to wait. So long as the module mounted on the cruise control does not effect starting in any way, I have to take that as my answer as to wheather or not it can be tested. So from your last, can I assume that the only things that will keep the PCM from getting power ie(THE FEED FROM THE INTERIOR FUSE BOX # 20 TO THE RELAY COIL IN THE POWER DISTRIBUTION BOX and keep the "service engine soon" light out. Would be the Cam shaft or crank shaft sensor?RE. First question. Stated relay in that box does not always energize, and when it does not, no check engine light/no power to the PCM, you're not answering my direct questions.
Dave