No Start. Stumped

[DeputyDiesel]

So driving and the truck died and would not restart. It had been cutting out "Hickuping" once and awhile since i installed my fresh reflashed chip.
This time no start.

Here is what ive checked.
Fuses. 5 times
CPS 3 different ones
Check enging light comes on and stays on
WTS light works properly
Removed chip
moved relays around
Fuel pump not turning on. but works when supplied with power so its good
GP relay not cycling even tho light works
Scanners wont connect to truck. I tried 2 that worked on another truck and yes they have power. No communication.
Unpluged ICP.
Fuel heater deleted


Im a little stumped and looking for some fresh ideas. Batteries are new and have good connections. Cranks over great. HPOP fine.

Thanks

[NoRalPh]

How about the Inertia Switch in the pass side "kick panel"?

If tripped, it kills the power to the pump....

[DeputyDiesel]

oops forgot i already checked that too.

[Tmoney511]

Have to checked the pressure your ICP reads when trying to start your truck?

[DeputyDiesel]

No i cant get a scanner to connect with it. the scanner powers up but wont connect to the computer. I tried the scanner on almost the exact truck and it worked fine.

There is no point in cranking it over if the fuel system GP system are not responding as they usually do either. I have a fuel pressuer gage under the hood and it reads 0psi. makes sense because the pump isnt running. even with power direct to the pump the truck wont start.

I was thinking IDM or PCM. But the check engine light and GP lights are working fine.

[NoRalPh]

Do you have power in the OBD-II connector? (16 & 4)

[DeputyDiesel]

Ive got power in 16. only.
swapped a IDM out of a buddies truck in today. no differance. Going to try the pcm. my question is can i run a PCM from his 2000 in my 2003. the numbers are different obviously. Really dont want to buy 2.

[NoRalPh]

Power is in #16, Chassis Ground is #4, you should be reading battery voltage between them.

There's a pretty big difference in the electrical system between an '00 and an '03, I'm not sure but, I wouldn't do it!

If the WTS and SES work, then I think you're right, the computer Has to be running some. Something could be wrong with the reflash that's just got it confused. You've removed it?

Maybe "cold boot" the PCM by unplugging it?

[DeputyDiesel]

I've pulled the computer numerous times. Tried it without chip. And with. Disconnected the batteries. I'm on the lookout for a new PCM. Thinking something is fried inside.

[DeputyDiesel]

I ve got batt voltage between 4 and 16. What is this telling me. That the computer is grounding correctly?

Is there a test for it. Some way I can be 100 percent sure this is the problem.

Also I'm having a hard time finding one.
AEB4
2C3F. 12A650-BE.